• Principles Of Mechanics – End-Of-Course Examination
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What is the time constant for a circuit with 150KOhms and a 2 microfarad capacitor? - CORRECT
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ANSWER✔✔.3 seconds
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What must be done before checking pump drive belts on a hydraulic elevator - CORRECT ANSWER✔✔Pull
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the main disconnect switch
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Which of the following best describes the danger posed be the counterweight assembly when you are riding
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the car top? - CORRECT ANSWER✔✔It run close by in the opposite direction
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Why must you place a hydraulic elevator car on jack posts before servicing the packing head? - CORRECT
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ANSWER✔✔Because a hydraulic elevator is supported by a column of oil.
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Why can't Elevator Constructors use a metal ladder? - CORRECT ANSWER✔✔Metal ladders conduct
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electricity
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What is the function of a Ground Fault Circuit Interrupter? - CORRECT ANSWER✔✔To detect and imbalance
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in current between the hot and nuetral wires
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How do you determine the correct angle from the vertical for placing a ladder - CORRECT
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ANSWER✔✔Measure out a distance of 1/4 the height.
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Who is required to furnish you the necessary safety equipment? - CORRECT ANSWER✔✔Your employer
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What device must be in working condition in order to use an elevator car sling as a running platform -
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CORRECT ANSWER✔✔The governor and safeties.
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,What hazardous condition can occur if the weight of the temporary car and counterweight are not kept
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nearly equal? - CORRECT ANSWER✔✔Traction could be lost
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What is the name of the document that lists the hazards of a substance? - CORRECT ANSWER✔✔Material
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Safety Data Sheet or Safety Data Sheet
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Who is responsible for making sure barricades are kept in place? - CORRECT ANSWER✔✔Everyone on the
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job
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Who is primarily responsible for your safety on the job? - CORRECT ANSWER✔✔You, Yourself
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Which agency guarantees your right to a safe workplace? - CORRECT ANSWER✔✔OSHA
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Which of the following is not a typical elevator repair? - CORRECT ANSWER✔✔
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Which of the following makes a good substitute for a ladder? - CORRECT ANSWER✔✔Never substitute
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anything
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How should you proceed to et a toolbox to the machine room when climbing a vertical ladder? - CORRECT
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ANSWER✔✔Climb the ladder and pull the box up with a rope
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What is the safest way to lubricate hoist ropes? - CORRECT ANSWER✔✔With a rope lubricator
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What supports a hydraulic elevator? - CORRECT ANSWER✔✔The column of oil inside the jack
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What is the first thing you must do before performing any service on an elevator - CORRECT
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ANSWER✔✔Place barricades at the upper and lower ends
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When a roller bearing needs to be pressed onto a shaft, what type of allowance does the shaft have? -
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CORRECT ANSWER✔✔Negative allowance
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,How are threads specified on metric bolts? - CORRECT ANSWER✔✔
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What is the tolerance accepted in the elevator industry? - CORRECT ANSWER✔✔+- 1/64
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What type of locking device uses a second nut run up against the first which flattens when tightened? -
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CORRECT ANSWER✔✔
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How many possible views are there available from drawings using orthographic projections? - CORRECT
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ANSWER✔✔
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Best Describe Layout Drawings - CORRECT ANSWER✔✔A mechanical drawing showing plans and elevation
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views of the elevator installation
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What document provides information on the number of doors for an installation and their color? - CORRECT
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ANSWER✔✔Job Abstract
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What is the purpose of the elevation view found in the final layouts? - CORRECT ANSWER✔✔To show
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vertical locations and dimensions of elevator components.
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The floor heights for the Wilton Towers are as follows; sub-basement- 10'2"; subbasement to basement-
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12'5"; basement to lobby-22'8"; lobby to the 11th floor-120'5"; and to the executive floor-16'5". What is the
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total travel for an elevator that travels from ht ebasement floor level to the executive floor level? - CORRECT
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ANSWER✔✔159' 5"
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DBG at the top-7' 11 5/32"
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DBG at the bottom- 7' 10 17/64"
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What is the difference? - CORRECT ANSWER✔✔
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You have been tasked with unloading 177 boxes from the company truck and moving them into a storage
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area. By noon you have moved 103 boxes. What percentage of the load has been moved? - CORRECT
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ANSWER✔✔58%
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, The counterweight must weigh 40% of the car capacity plus the weight of the assembled car. If the
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assembled car weighs 3800 lbs. and has a capacity of 2500lbs. what must the counterweight weigh? -
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CORRECT ANSWER✔✔5100lbs
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What is the most important piece of equipment you have when using a power saw? - CORRECT
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ANSWER✔✔Safety Glasses
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When using a circular saw... - CORRECT ANSWER✔✔The base is not adjustable for cutting depth.
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What functions can load weighing transducer perform - CORRECT ANSWER✔✔Adjust door times, bypass
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hall calls, and adjust motor control
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What prevents manila rope from unraveling? - CORRECT ANSWER✔✔Whipping
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When using U-bolts... - CORRECT ANSWER✔✔Place all U-bolt clips with the U shaped portion bearing on the
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dead-end of the rope
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Capstans should be - CORRECT ANSWER✔✔fastened to building steel or other building structure.
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To interrupt hoisting on a capstan... - CORRECT ANSWER✔✔ease off on the pulling rope
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What type of wrench is used to align the holes for rail installation? - CORRECT ANSWER✔✔Spud Wrench
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What wrench is used to thread pipes with polished surfaces together? - CORRECT ANSWER✔✔Strap
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Wrench
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Hacksaw Blades - CORRECT ANSWER✔✔must be installed with the teeth facing forward
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Metal Ladders - CORRECT ANSWER✔✔should never be used
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dd d d d d d
What is the time constant for a circuit with 150KOhms and a 2 microfarad capacitor? - CORRECT
d d d d d d d d d d d d d d d d
ANSWER✔✔.3 seconds
d d
What must be done before checking pump drive belts on a hydraulic elevator - CORRECT ANSWER✔✔Pull
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the main disconnect switch
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Which of the following best describes the danger posed be the counterweight assembly when you are riding
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the car top? - CORRECT ANSWER✔✔It run close by in the opposite direction
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Why must you place a hydraulic elevator car on jack posts before servicing the packing head? - CORRECT
d d d d d d d d d d d d d d d d d
ANSWER✔✔Because a hydraulic elevator is supported by a column of oil.
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Why can't Elevator Constructors use a metal ladder? - CORRECT ANSWER✔✔Metal ladders conduct
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electricity
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What is the function of a Ground Fault Circuit Interrupter? - CORRECT ANSWER✔✔To detect and imbalance
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in current between the hot and nuetral wires
d d d d d d d d
How do you determine the correct angle from the vertical for placing a ladder - CORRECT
d d d d d d d d d d d d d d d
ANSWER✔✔Measure out a distance of 1/4 the height.
d d d d d d d d
Who is required to furnish you the necessary safety equipment? - CORRECT ANSWER✔✔Your employer
d d d d d d d d d d d d d
What device must be in working condition in order to use an elevator car sling as a running platform -
d d d d d d d d d d d d d d d d d d d
CORRECT ANSWER✔✔The governor and safeties.
d d d d d
,What hazardous condition can occur if the weight of the temporary car and counterweight are not kept
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nearly equal? - CORRECT ANSWER✔✔Traction could be lost
d d d d d d d d
What is the name of the document that lists the hazards of a substance? - CORRECT ANSWER✔✔Material
d d d d d d d d d d d d d d d d
Safety Data Sheet or Safety Data Sheet
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Who is responsible for making sure barricades are kept in place? - CORRECT ANSWER✔✔Everyone on the
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job
d
Who is primarily responsible for your safety on the job? - CORRECT ANSWER✔✔You, Yourself
d d d d d d d d d d d d d
Which agency guarantees your right to a safe workplace? - CORRECT ANSWER✔✔OSHA
d d d d d d d d d d d
Which of the following is not a typical elevator repair? - CORRECT ANSWER✔✔
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Which of the following makes a good substitute for a ladder? - CORRECT ANSWER✔✔Never substitute
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anything
d
How should you proceed to et a toolbox to the machine room when climbing a vertical ladder? - CORRECT
d d d d d d d d d d d d d d d d d d
ANSWER✔✔Climb the ladder and pull the box up with a rope
d d d d d d d d d d d
What is the safest way to lubricate hoist ropes? - CORRECT ANSWER✔✔With a rope lubricator
d d d d d d d d d d d d d d
What supports a hydraulic elevator? - CORRECT ANSWER✔✔The column of oil inside the jack
d d d d d d d d d d d d d
What is the first thing you must do before performing any service on an elevator - CORRECT
d d d d d d d d d d d d d d d d
ANSWER✔✔Place barricades at the upper and lower ends
d d d d d d d d
When a roller bearing needs to be pressed onto a shaft, what type of allowance does the shaft have? -
d d d d d d d d d d d d d d d d d d d
CORRECT ANSWER✔✔Negative allowance
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,How are threads specified on metric bolts? - CORRECT ANSWER✔✔
d d d d d d d d d
What is the tolerance accepted in the elevator industry? - CORRECT ANSWER✔✔+- 1/64
d d d d d d d d d d d d
What type of locking device uses a second nut run up against the first which flattens when tightened? -
d d d d d d d d d d d d d d d d d d
CORRECT ANSWER✔✔
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How many possible views are there available from drawings using orthographic projections? - CORRECT
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ANSWER✔✔
d
Best Describe Layout Drawings - CORRECT ANSWER✔✔A mechanical drawing showing plans and elevation
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views of the elevator installation
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What document provides information on the number of doors for an installation and their color? - CORRECT
d d d d d d d d d d d d d d d d
ANSWER✔✔Job Abstract
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What is the purpose of the elevation view found in the final layouts? - CORRECT ANSWER✔✔To show
d d d d d d d d d d d d d d d d
vertical locations and dimensions of elevator components.
d d d d d d d
The floor heights for the Wilton Towers are as follows; sub-basement- 10'2"; subbasement to basement-
d d d d d d d d d d d d d d
12'5"; basement to lobby-22'8"; lobby to the 11th floor-120'5"; and to the executive floor-16'5". What is the
d d d d d d d d d d d d d d d d
total travel for an elevator that travels from ht ebasement floor level to the executive floor level? - CORRECT
d d d d d d d d d d d d d d d d d d d
ANSWER✔✔159' 5"
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DBG at the top-7' 11 5/32"
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DBG at the bottom- 7' 10 17/64"
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What is the difference? - CORRECT ANSWER✔✔
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You have been tasked with unloading 177 boxes from the company truck and moving them into a storage
d d d d d d d d d d d d d d d d d
area. By noon you have moved 103 boxes. What percentage of the load has been moved? - CORRECT
d d d d d d d d d d d d d d d d d d
ANSWER✔✔58%
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, The counterweight must weigh 40% of the car capacity plus the weight of the assembled car. If the
d d d d d d d d d d d d d d d d d
assembled car weighs 3800 lbs. and has a capacity of 2500lbs. what must the counterweight weigh? -
d d d d d d d d d d d d d d d d d
CORRECT ANSWER✔✔5100lbs
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What is the most important piece of equipment you have when using a power saw? - CORRECT
d d d d d d d d d d d d d d d d
ANSWER✔✔Safety Glasses
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When using a circular saw... - CORRECT ANSWER✔✔The base is not adjustable for cutting depth.
d d d d d d d d d d d d d d
What functions can load weighing transducer perform - CORRECT ANSWER✔✔Adjust door times, bypass
d d d d d d d d d d d d
hall calls, and adjust motor control
d d d d d d
What prevents manila rope from unraveling? - CORRECT ANSWER✔✔Whipping
d d d d d d d d
When using U-bolts... - CORRECT ANSWER✔✔Place all U-bolt clips with the U shaped portion bearing on the
d d d d d d d d d d d d d d d d
dead-end of the rope
d d d d
Capstans should be - CORRECT ANSWER✔✔fastened to building steel or other building structure.
d d d d d d d d d d d d
To interrupt hoisting on a capstan... - CORRECT ANSWER✔✔ease off on the pulling rope
d d d d d d d d d d d d d
What type of wrench is used to align the holes for rail installation? - CORRECT ANSWER✔✔Spud Wrench
d d d d d d d d d d d d d d d d
What wrench is used to thread pipes with polished surfaces together? - CORRECT ANSWER✔✔Strap
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Wrench
d
Hacksaw Blades - CORRECT ANSWER✔✔must be installed with the teeth facing forward
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Metal Ladders - CORRECT ANSWER✔✔should never be used
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