Crane operator Test Questions and Complete Solutions Graded A+

  Which statement best describes the importance Osha 29 CFR 1926.550 places on a crane manufacturers instructions specifications and limitations? - Answer: They must be followed exactly as the law According to Osha 29 CFR 1926.550 where must hand signals be placed - Answer: On the job site According to Osha 1910.180, how accurate must the load weight be when making picks in the structural portion of the load chart - Answer: Plus or minus 10% According to Osha 1910.180, are cranes allowed to be over weight - Answer: Yes, but only during testing and not over 110% of capacity According to ASME B30.5, when setting outriggers, the crane should be raised to - Answer: Get tires free or crane weight What does ASME B30.5 say about the amount of cribbing under outrigger floats - Answer: Must provide 100% support for the float According ASME B30.5, what is the minimum sheave diameter of a load block if the wire rope diameter is one inch - Answer: 16 inches According to Osha, when can an operator leave the seat with a suspended load - Answer: When absolutely necessary if unauthorized entry into the crane can be controlled When necessary on long duration lifts Only when the engine is shut down Only when 4 criteria are followed When is a float pad load the highest - Answer: When picking over a corner On a crawler crane, when is ground pressure the lowest - Answer: When picking over a side Why place blocking under the ends of a crawler - Answer: To make the crane more stable What is the minimum OSHA clearance for working near a 90,000 volt power line - Answer: 15 feet What is the correct direction for installing boom pins - Answer: Install pins from the outside If a particular crane must be level within 1% grade, what is the maximum elevation change in 25 feet - Answer: 3 inches Which pins should never be removed when dismantling a lattice boom - Answer: Any pin behind pendant support What is the minimum criteria that would cause a lift to be critical - Answer: 75% of chart What is the biggest risk in a 2 crane lift - Answer: Side load What is the best procedure when working around power lines - Answer: Shut down the lines How much of a cranes capacity can be used when lifting personnel baskets - Answer: 50% According to Osha 1926.1412 who can preform daily inspections - Answer: Competent person Which Osha regulation applies to cranes used in the construction industry - Answer: 1926.1400 What osha regulation applies to crane used in general industry - Answer: 1910.180 Which ANSI/ASME standard applies to the use of mobile cranes - Answer: ANSI/ASME B30.5 Which osha regulation applies to mobile cranes using a personnel platform - Answer: 1926.1431(e) According to the ASME B30.5 mobile crane standard, the load must not be lowered below the point where there is how many full wraps or rope left on the drum - Answer: 2 According to the ASME B30.5 mobile cranes standard, how many randomly distributed broken wire in rotations- resistant rope requires replacement of the rope - Answer: 2 broken wires in 6 rope diameters According to the ASME B30.5 mobile crane standard, it's okay for an operator to leave the cab on a cab with the engine running as long as - Answer: The crane operator keeps the crane in view and restricts access to the area around the crane According to osha, accessible area of the operating crane must always be barricaded within - Answer: The swing radius of the rear of the rotating superstructure Osha permits hoisting of personnel by crane as long as - Answer: There is no less hazardous or particular way Osha 1926.1431 requires the personnel platform to be proof tested to - Answer: 125% of rated capacity Osha/ASME requires that the total weight of the loaded personnel platform - Answer: 50% of the cranes rated capacity at a given radius ASME B30.5 requires that the lifting /lowering speed should not exceed - Answer: 100 feet per minute Osha 1926.1431 recommends that personnel platforms on cranes should not be used in winds in excess of - Answer: 20 mph Personnel platforms shall be proof tested for a minimum of - Answer: 5 minutes When welding repairs are to be performed on the load sustaining members of a personnel platform, the welding should be compliance with - Answer: ANSI/AWS D1.1 ANSI/AWS P24 ANSI/AWS T14 None of the above According to the 1926.1433, an accessible fire extinguisher shall be on the equipment - Answer: True 1926.1415 requires all jib to be fitted with the positive stops to prevent movement above _____ degrees on conventional type boom cranes - Answer: 5 According to 1926.1413/ASME B30.5 requires replacement of a standing wire rope when it has _____ broken wires at an end connection - Answer: 2 1926.1413 and ASME B30.5 requires the rope to be taken out of service when the wear on the outside individual wires exceed - Answer: Diameter reduction of more than 5% from nominal diameter In running ropes, how many randomly distributed broken wires require choir removing the road from service - Answer: 6 randomly distributed broken wires in one lay As you boom down, the leverage of the load on the crane will - Answer: Increase A crane operator must have a physical examination - Answer: Every 3 years A crane should be level within - Answer: 1% According to OSHA regulations, when traveling a crane under energized powerlines of 50 kV, no part of the crane must come within - Answer: 10 feet Exceeding the maximum counterweight approved by the manufacture for use on a crane - Answer: May cause structural damage and/or turn the crane over backwards When placing loads during pick and carry operations on a grade, the load should always be placed - Answer: On a uphill slide of the crane If a single person hold both fists in front of his or her body with thumbs pointing out word what action does that signal person and 10 for the operator to perform - Answer: Extend the boom According to the B 30.5 standard for rubber tied Crane's, Crane's working on rubber (not on outriggers), the part of the load chart covered by its stability is based on what percentage of the cranes capacity - Answer: 75% When in transit under power lines of more than 750 KV, how much clearance is required from any part of the crane - Answer: 20feet On a long boom mobile cranes, what is the major effect in abruptly stopping or a rapid swing - Answer: Action may overturn the crane or collapse the boom On a pick and carry operations, you should - Answer: Keep the boom as short as possible On a crawler crane, ground bearing pressure is greatest - Answer: Over the corner Hooks shall be removed from service when the throat opening exceeds _______ of the original throat opening - Answer: 15% According to B30.5 standard, when working around power lines of more than 750 KV, how much clearance is required from any part of the crane and the load - Answer: 45 feet Lifting from the jib "on rubber" is - Answer: Prohibited by most manufactures You should determine if a powerline is energized by - Answer: Asking your supervisor What is the major reason extreme caution must be used when lifting loads from the water - Answer: The load on a crane may increase as the object leave the water due to the loss of buoyancy, water held inside the object, and surface tension(suction) What is the major hazard of extending the boom on a hydraulic crane without hoisting down - Answer: Two blocking There are three major items necessary to know in order to establish the safe working load limit of a crane. Any two of these three items can be used to compute the third. One is a boom length. Another is radius of the load. The third is - Answer: Boom angle How often should all running ropes in service be visually inspected - Answer: Once each working day Unless the manufacture state otherwise, Truck cranes generally have no lifting capacity over which area - Answer: The front "Working radius" is defined as the distance from the - Answer: Center of rotation of the crane to the center of gravity of the load Rough terrain Crane capacities are generally greater over the - Answer: Front What action does a single person attend the operator to inform if he extends his arm and shoulder height, makes a fist with his hand, and sticks his thumb down - Answer: Boom down The load line of a crane you were operating comes into contact with the energize powerline. There is no sign of any other danger, such as fire. In such situation you should - Answer: Stay in the cab until lines are de energized When a heavy load is lifted off the ground it will tend to - Answer: Swing out away from the Crane Which is most common cause of death to Crane operators - Answer: Crane turnovers And operator should respond to a stop sign from - Answer: Anyone Truck crane capacities are generally greater over though - Answer: Rear Boom length is measured from the - Answer: The center of the boom hinge pins to the center of the boom tip sheave Using the preferred method of installing wire rope from a real onto a hoist drum, the rope runs from the - Answer: Top of the real to the top of the drum According to B30.5 crack in the windshield of a crane crab is OK as long as - Answer: It causes no visible distortion that would interfere with safe operation When lifting personnel, the total weight of the loaded personal platform must not exceed what percentage of the rated capacity of the crane - Answer: 50% Sideloading of the crane boom is permitted - Answer: Only with freely suspended though If the operator makes two audible signals when moving a crane, he/she intends to - Answer: Go ahead If a cranes load movement indicator (LMI) malfunctions, the operator should - Answer: Cease crane operations and report the condition to the supervisor Blocking (cribbing) may be placed under Outrigger beams - Answer: Never Timber blocking placed under the tops of the tracks on a crawler crane will - Answer: Make the crane more stable If the load test is done on a repaired Crane, the load must not exceed what percentage or the manufactures crane rating - Answer: 110% When handling boom sections, the best place for sling to be attached is - Answer: At the pin connection points at the end of the top chords How does the operator verify the LMI'S is boom length or load radius reading - Answer: Actual measurements On who's recommendation should a preventative maintenance program be set up - Answer: Crane manufacturers The proper way to calibrate a boom angle indicator - Answer: Call the companies mechanic Eccentric main boom tip reeving causes - Answer: Twisting of the boom A frequent inspection is defined as - Answer: Daily to monthly Low test for Crane should not exceed _____% of the manufactures ratings - Answer: 110% B 30.5 requires load indicator on a cranes when it's capacity exceeds - Answer: 3 tons or above Which statement best describes how OSHA 1926.14 hundred looks at a crane manufactures instructions, specifications , and limitations - Answer: They must be followed exactly as law Where does OSHA 1926.1422 require hand signals to be postedA. on the outside the CraneB. In the vicinity of the hoisting operationC. In the crane cabD. A or B - Answer: A or b According to OSHA 1910.180, all cranes are allowed to be overloaded - Answer: Yes, but only during testing and not over 110% of rated capacity What is the maximum amount of twist allowed in a hook - Answer: 10° What is the maximum amount a hook throat can open up - Answer: 15% According to OSHA 1926.1412, who can do a daily inspection - Answer: A competent person According to ASME B30.5, and operator aid (such as ATV, LMI) shall be inspected and tested at least once every ____by qualified person - Answer: 12 months What is the difference between anti 2 block warning device in the anti-two block preventative system - Answer: Both will warn and stop the dangerous operation The primary purpose of a rooster or auxiliary boom point is to - Answer: Decrease the load radius With a number of layers of a rope on a drum increases, the - Answer: Line pull decreases Excessive side loading of booms by freely suspended load is caused by - Answer: Starting or stopping the swing too rapidly When telescoping the boom section of an R/T, which section should be telescoped first - Answer: All sections should be telescoped equally When should the operator use the seat of his pants technique - Answer: Never Is the load applied to the crane when determining the load of boom angle - Answer: Yes How do outriggers increase the tipping capacity of a crane - Answer: By moving the tipping axis further away from the center of gravity of the crane You plan to pick a load you are told weighs 36.500 LBS. Line port on the crane you are operating is 9000 LBS. How many parts of the line will you need - Answer: 5 Sideloading of a crane boom is permitted - Answer: Only with freely suspended loads Boom length is measured from the - Answer: hinge pins to the center of the boom tip sheaves How often must periodic inspections be conducted - Answer: Monthly to annually When pushing the far left-hand control lever forward the crane action will be - Answer: Swing towards the boom What is the main purpose of the jib - Answer: To extend reach higher or up and over What can be removed from a crane - Answer: Offsetable jib The term luffing jib refers to a job than can - Answer: Change radius independent of boom Jib offset is exposed as the jib angle to the - Answer: Boom Load radius shown on the chart is the horizontal distance from the center of rotation to the center of the vertical hoist line with - Answer: Rated load suspended On a crawler crane working over the side quadrant, the part of the load chart governed by stability is based on what percentage of its capacity - Answer: 75% On duty cycle operations, such as pouring concrete, many manufacturers require a cranes load chart capacity to be reduced by - Answer: 20% Unless the manufacturers states otherwise, the net capacity of a crane is the capacity listed in the load chart - Answer: Minus the weight of the rigging and all attachments If a bold line is shown In a load chart, the capacities below the line - Answer: Are based on the stability of the crane When calculating net capacity, the weight of the rope - Answer: May or may not be a deduction, depending on the crane manufacturers A shaded area in a load chart usually means the capacities shown in that area - Answer: Are based on the structural strength of the crane What type of capacity is listed on a crane load chart - Answer: Static Where should an operator look for information on how to configure a crane for a particular job - Answer: Range diagram When it is permissible to tip a crane to determine capacity - Answer: Never If the manufacturer of a particular crane does not specifically permit pick and carry operations, what procedure must be followed during this operation - Answer: Don't make pick and carry lifts According to the osha 1910.180, how accurate must the load weights be if they are in the structural portion of the load chart - Answer: Plus or minus 10% How does an operator determine if the load chart is correct for the crane they are running - Answer: Same serial number and model Net capacity is equal to - Answer: Gross capacity minus capacity deductions In a range diagram, boom length and angle can be used to estimate - Answer: Load radius What are most jib and extension capacities based on - Answer: Working radius The most unstable working quadrant for a crawler crane is the - Answer: Side When determining the gross load, the best method is - Answer: Get accurate load weight and add the rigging A telescopic boom truck crane with outriggers properly set and working over the rear is rated at what percentage of its tipping capacity - Answer: 85% If a jib is erected but is not being used, it is treated as a deduction from the cranes - Answer: Gross capacity The jib capacity is 8 tons and the ball weighs is 900 lbs. what is the heaviest load that can be lifted safely - Answer: 15,100 If not listed in the load/capacity charts for a hydraulic crane and you are in between boom lengths, you should - Answer: Use the next longer length Load radius is the distance from the center of gravity of the freely suspended load to the - Answer: Center of rotation Load radius of a crane is determined with - Answer: Maximum load applied On a chart, values above the bold line mean - Answer: Capacities based on structural competence What is the best reason that a crane should not use 100% of its capacity - Answer: Capacity is based on ideal conditions that can't be met When is boom length of the crane falls between the lengths listed in the load chart - Answer: The next longest or the next shortest boom length, whichever is the lower capacity If a jib is erected but not being used to lift the load, you should make a deduction from the gross capacities listed in the load chart based on - Answer: The effected weight of the load When telescopic booms are not extended equally - Answer: LMI will be inaccurate Net load is - Answer: Actually weight of the load When falling in between loaded boom angles shown in the load chart, use the rating of the - Answer: Next lower boom angle Which osha regulation applies to cranes used in the construction industry - Answer: 1926.1400 Which osha regulation applies to cranes used in general industry - Answer: 1910.180 Which ANSI/ASME standard applies to the use of Mobile cranes - Answer: ANSI/ASME B30.5 What osha regulation applies to Mobil cranes using personnel platform (man basket) - Answer: 1926.1431(e) According to ASME B30.5 Mobile crane standard, the load must not be lowered below the point where there is how many fall wraps of rope left on the drum - Answer: 2 According to the B 30.5 mobile crane standard, it's OK for an operator to leave the cab on the crane with the engine running as long as - Answer: It's never OK We're going to OSHA, accessible areas of the operating crane must be barricaded within - Answer: The swing radius of the rear of the rotating superstructure Osha permits hoisting of personnel by Crane as long as - Answer: There is no less hazardous or practical way OSHA 1926.1431 requires the personal platform to be proof tested to - Answer: 110% of rated capacity Osha/ASME requires a total weight of the load personal platform should not be exceeded - Answer: 50% of the cranes rated capacity at a given radius OSHA 1926.1431 recommends a personal performance on Crain should not be used in Winds In excess of - Answer: 20 mph Personal platforms shall be proof tested for a minimum of - Answer: Five minutes When welding repairs are to be performed on all load sustaining members of a personal platform, the world I should be in compliance with. A. ANSI/AWS D1.1. B. ANSI/AWS P24. C. ANSI/AWS T14 D. None of the above - Answer: D) none of the above According to the 1926.1433 in assessable fire extinguisher shall be on the equipment - Answer: True According to the B 30.5 mobile crane standard, how many randomly distributed broken wires in rotation - resistant rope requires replacement of the rope - Answer: 2 broken wires in 6 rope diameters 1926.1415 requires all jobs to be fitted with positive stops to prevent movement above_____degrees unconventional type broom cranes - Answer: Five According to the 1926.1413/ASME B30.5 requires replacement of a standing wire rope when it has_____broken wires at it an end connection - Answer: 1 1926.1439/ASME B30.5 requires the rope to be taken out of service when the wear on the outside individual wires exceed - Answer: Diameter reduction of more than 5% from nominal diameter And running ropes how many randomly distributed broken wires require removing the road from service - Answer: 4 randomly distributed broken wires in one lay Which statement best describes the importance OSHA 29 CFR 1926.550 places on a crane manufacturer's instructions, specifications and limitations? A. They should always be considered. B. They must be followed for all critical picks. C. They must be followed exactly as the law D. They should be given priority except light picks - Answer: C. They must be followed exactly as the law According to OSHA 29 CFR 1926.550, where must hand signals be posted? - Answer: On the outside of the crane and on the jobsite Suppose you are operating a crane pulling drill shaft casing with a vibratory puller. Your boss wants to hang the power unit for the vibratory puller on the crane's counterweight. What does OSHA 29 CFR 1929.550, say about doing this? - Answer: It can be done if the manufacturer approves of it in writing. According to OSHA 29 CFR 1910.180, are cranes allowed to be overloaded? - Answer: Yes but only during testing and not over 110% or rated capacity According to OSHA 29 CFR 1910.180, how accurate must a load weight be if it is in the structural portion of the load chart? - Answer: Plus or minus 10% Suppose you are setting gang forms with your crane. One form is not plumb when you set it in place, and the signal person wants you to swing the crane to plumb up the form. Why would doing this be wrong? A. OSHA prohibits side loading booms except with freely suspended loads. B. ANSI prohibits side loading booms except with freely suspended loads. C. Almost every, if not every, manufacturer prohibits side loading of booms except with freely suspended loads. D. All of the above - Answer: D. All of the above Based on the OSHA and ANSI standards, which of the following conditions are required for proper outrigger use? 1. The outriggers must fully be extended or extended per the chart. 2. There can be no broken, damaged or missing float attachments. 3. The tires must be clear of the ground. 4. The outriggers must always be visible to the operator or the signal person during extension, retraction and setting. 5. When required, the outriggers must be properly blocked and cribbed. - Answer: All of the above Based on the OSHA and ANSI standards, which of the following conditions are required for blocked or cribbing? 1. Blocking or cribbing must provide 100% support for each float. 2. Blocking or cribbing must be large enough in area to prevent sinking. 3. Blocking or cribbing must be strong enough to prevent crushing, bending or shear failure. 4. Blocking or cribbing must be at least three times larger than the float. - Answer: All of the above Suppose you need a single-sheave block for a particular lift. Your crane does not have a single-sheave block, but there are several in the yard that look like they will do the job. List 5 things OSHA or ANSI requires for the block? - Answer: 1. Right sheave 2. Capacity 3. Weight 4. Rope guards 5. Hook latch According to ANSI /OSHA, when can an operator leave his or her seat with a suspended load in the air? - Answer: Almost never( and the exception required a that three conditions be met) The ANSI standard requires operators to pass four exams and to demonstrate knowledge in four areas. List them here - Answer: Exam areas 1. Written 2. Physical 3. Practical 4. Load chart Knowledge areas 1. Read & understand 2. Write 3. Math 4. Rule & regs What do the ANSI and OSHA standards say about truck cranes handling loads over the front? - Answer: No loads over the front unless allowed by the manufacturer Suppose you are setting up an outrigger crane on a level dirt surface. Should you do anything in particular to set up of this surface? - Answer: Yes. A dirt set-up requires cribbing to spread out the float loads How should the minimum blocking area be determined for average soil conditions? - Answer: Multiplying the float area by 3 and divided the tons of capacity by 5 Suppose you have determined that each float on your crane needs 9 square feet of blocking on average soil. The only material available for blocking is one spool end for each float. Each spool end is 1.5 inches thick and 15 square deep in area. Will the spool ends be adequate for floating blocking? - Answer: No. This blocking material will probably bend or break Is there an official requirement that requires each outrigger float on blocking to be 100% supported ? - Answer: Yes. This is required by ASME B30.5. How is the strength of an outrigger float affected when it is not 100% supported - Answer: The strength can be reduced up to 50% What is the allowable error when leveling float pads? - Answer: 0% When is a float pad load the highest? - Answer: When picking over the corner When is the pressure applied by tracks the highest - Answer: When picking over the corner Suppose you must set a tank in a 10- foot deep hole with vertical sides. The soil is sandy loam. What is the minimum distance you should maintain between your crane and the edge of the hole - Answer: 15 feet What causes more crane-related deaths than anything else? - Answer: Contact with power lines What is the required OSHA clearance for a 100,000-volt (100kV) power line? - Answer: 20 feet What is the required ASME B30.5 clearance for a 100,000-volt (100 kV) power line during operation? - Answer: 15 feet Describe two accurate methods of determining how level a crane is - Answer: 1. Plum bob ur crane 2. Cadenter level Why is it important to know how level a particular crane must be? - Answer: Sheave + rope damage, capacity, side loading boom Does the manufacturer's requirement for level apply to operating on rubber and doing a pick and carry? - Answer: Yes What is the correct direction for installing boom pins ? - Answer: Install the pins so they can be removed from outside the boom What is the maximum out-of-level specification given in most crane capacity charts? - Answer: No more than .57 degrees off List three problems that are created when a crane is not level - Answer: 1. Sheave 2. Rope 3. Radius - more difficult to operate What do most loads charts require when initially raising a long boom? A. Follow specific instructions regarding outriggers and quadrants. B. Have the crane properly assembled. C. Leave the block and ball on the ground D. All of the above - Answer: All of the above When is it acceptable to allow people inside, on or under a lattice boom during assembly? - Answer: Never What steps should be followed when removing pins outside the pendant support? ( list them in order) - Answer: 1 level ground 2. Prop blocking Why is it important to follow the manufacturer's instructions for pendant attachment and maximum cantilever length? A. The manufacturer's instructions carry the full force of the law B. Doing so will prevent boom collapse or damage C. Doing so will avoid someone being seriously injured or killed D. All of the above - Answer: All of the above When disassembling a lattice boom, which pins should never be removed? - Answer: Any pin behind the pendant support If the manufacturer of a particular crane does not specifically permit pick-and-carry operations, can you make this type of lift? - Answer: No, do not make any pick-and-carry lifts Suppose the RT crane you are operating has the boom, extension erected with the ball on the extension and a four- part of block off the main boom head. Your boss has asked you to pick and carry a small welding machine from one side of the job side to the other. What must you do before making this lift? - Answer: Stow the extension and use a block or ball List four things to do when traveling with a load - Answer: 1. May speed 3 slowly 2. Level ground 3. Over front, keep hand close to crane 4. Shortest boom low as possible When using ratios for signaling a crane, what is the major safety concern If communication is not maintained continuously while the load Is in motion? - Answer: Communication may not be reestablished to stop or change the motion of the load If you see a signal described as "one fist in front of the chest with the thumb tapping the chest," your correct response is to: - Answer: Extend the boom Suppose a load is motion under the direction of a signal-person. A signal is given but not understood by the operator. What should the operator do? - Answer: Stop everything Suppose a load is at rest and the operator is waiting for the next signal from the signalperson. When the signal is given, it is not clear. What should the operator do? - Answer: Do nothing until the signal is understood How does the use of outriggers increase the tipping capacity of a crane? - Answer: By moving the tipping axis further from the center of gravity if the crane Compared to the crawler and rough-terrain cranes, why do truck cranes usually have a Higher tipping point capacity over the rear? - Answer: The center of gravity of the crane is furthest from the tipping axis in that quadrant The load charts for many cranes state that the area or least stability is over the side. What best explains the statement? - Answer: The distance between the cranes center of gravity and the tipping axis is smallest in that quadrant List two examples of outriggers use in which the crane's leverage on the load is reduced - Answer: 1. Cribbing not level 2. Outriggers not out all the way At what wind speed does ANSI suggest that basket operations be stopped - Answer: 15 miles per hour According to OSHA, A Demolition ball must not exceed ___% or capacity or ____% of wire rope strength. - Answer: 50, 25 What is the most important consideration when deciding how to secure an unattended crane overnight - Answer: The manufacturer's instructions List 7 ideal conditions for a crane operation - Answer: 1) no wind 2) level ground 3) firm ground 4) static load 5) proper support 6) crane assembled properly 7) machine new condition What his the best reason for not using a crane 100% of its capacity - Answer: Capacity is based on ideal conditions, which never exist Suppose you're operating a crane during the month of January. The site is muddy. The daytime temperature is 40°, and an overnight low is 10°. What precaution would you take before going home for the night - Answer: Make sure the crane cannot freeze to the ground When lifting a load out of water what effect should be should you be ready for - Answer: The extra weight of the load List four things in operator should consider when deciding how much, if any, to reduce operating capacity for the wind - Answer: 1) where wind is coming from 2) load 3) how wind it is What type of capacity is listed on a crane load chart - Answer: Static List 2 reason crane manufacturers require reductions in capacity for duty cycle work - Answer: 1) repetitive motion List 4 facets that affect machine condition - Answer: 1) wind 2) maintenance 3) corrosion Suppose you were operating a crane for a deck farm crew. You have to sit down a load of 4 x 4's directly on a slab without any dunnage (that is, blocks underneath the load). The person landing the load has unchoked the slings and placed one eye from each sling on the hook. Now he is signaling you to oyster what is wrong with this operation - Answer: OSHA strictly forbids pulling slings out from under the load in this manner Which sling types require capacity tags - Answer: All types of slings Which sling types require written inspection records - Answer: Chain slings What is the maximum amount of twist allowed in a hook - Answer: 10° Suppose you're operating a crane in the construction of a five level office building. The carpenter forperson tells you to hoist up a skip box with a four-way bridal that has eyes made using wire rope clips. Can you make this lift. - Answer: No, the eyes cannot be made using wire rope clips. What is the problem with beating down the eye of a choker hitch to get a tighter grip on the load - Answer: The sling could be overloaded due to low sling angles within the hitch What is the advantage of keeping sling angles at or above 60° to horizontal - Answer: The slings get stronger Why are wire rope clips installed in wedge sockets - Answer: To prevent accidental displacement of the wedge Suppose you'll be using a homemade spreader beam to make a lift. In addition to inspecting the beam for the defects, what else should you check for - Answer: That beam is marked with sufficient capacity and has been proof tested to at least 125% of that capacity Which of the following actions would not help prevent block spinning - Answer: Installing a swivel in the dead end Where is rotation resistant not allowed to be used - Answer: In boom hoist systems What is the maximum number of broken wires allowed in non rotation resistant running wire rope - Answer: 6 broken wires in one lay or 3 broken wire in one strand in one lay What is the maximum number of broken wire allowed in rotation resistant rope - Answer: 2 broken wires in 6 rope diameters or 4 broken wires in 30 rope diameters What's is maximum number of broken wires allowed at an end connection on a pendant line - Answer: 1 What is the maximum number of broken wires allowed on a standing rope not near an end connection - Answer: 2 Suppose you're operating Crane on a construction project. Your boss has told you that you are the competent person assigned to perform all required inspections according to OSHA regulations except the annual inspection. During your daily inspection, you discover a deficiency on the crane. What must you do - Answer: Take the crane out of service until deficiency has been corrected According to OSHA 1926.550, who can do the annual inspection - Answer: It comes in person or agency recognized by the US Department of labor