MSSC Certification Exam Study Guide Questions And Answers Verified 100% Correct

MSSC Certification Exam Study Guide Questions And Answers Verified 100% Correct Heavy axial loads are better handled by ________? - ANSWER angular contact bearings High temperature can _____________ of a bearing. - ANSWER limit life Housekeeping inspections and audits should include - ANSWER Unbiased auditors or inspectors How is a cam likely to be mounted on a shaft? - ANSWER welded How many extension cords are permitted to run across the floor of a workstation? - ANSWER 0 If a company does follow-up work after a PM that is considered ________maintenance. - ANSWER reactive If a machine is expected to have downtime for several shifts, the appropriate communication between shifts for Lockout/Tagout procedures is - ANSWER verify energy state on machine, then change locks If a motor starts blowing fuses or tripping thermals, the most likely cause is - ANSWER An overload motor If a technician has unwired a motor from a disconnect and the circuit breaker still trips, the next logical step is to ______ and see if the breaker trips again. - ANSWER replace the circuit breaker If suspended metal products were found in oil analysis, it would indicate - ANSWER Bearing problems In a PM audit, the _____ would likely be negatively impacted if there were a large number of uncompleted PM work orders. - ANSWER critical path It is important to have a/an ____________ to complete the PM work on a machine - ANSWER completion date Leveling all machine components prior to coupling them _____________. - ANSWER reduces the number of needed shims Low pressure in a hydraulic pump's suction line causes what malfunction? - ANSWER cavitation Lubrication and other _____________ maintenance activities should be checked daily to ensure they are performed. - ANSWER preventive Machine closures usually have _______ to prevent entry during machine operation. - ANSWER limit switch - interlocks and photocells Making sure that a motor shaft is level - ANSWER increases stress on the motor Misaligned coupling can cause _________ in machinery. - ANSWER vibration Motor shaft runout is checked to make sure of proper _____________. - ANSWER alignment of mating components NOT logic is formed by _____________. - ANSWER one normally closed switch Oxygen cylinders must be kept ______ away from combustion points. - ANSWER 25 ft. Predictive maintenance is a type of maintenance program that does what function? - ANSWER identifies machine parts or components failures before a major breakdown Preventive maintenance schedule would commonly include - ANSWER frequency Prior to shutting down a machine for preventive maintenance, the operator must - ANSWER remove all the debris and any residue from the machine Proper storage of tools helps keep them - ANSWER in good working order Reactive Maintenance is considered a(n) _____________ activity. - ANSWER unplanned maintenance Scheduled housekeeping inspections would ordinarily include - ANSWER verification that the floor is clean and free of debris Scheduled replacement of minor parts that tend to wear out quickly is an important parts of _______maintenance - ANSWER preventive Seizing, in reference to bearings and shafts, is a condition resulting from - ANSWER lack of lubrication Shaft coupling are critical parts of any transmission system. Which one of these can cause a coupling to fail? - ANSWER all of the above (Shaft failure b. wear c. All of these d. corrosion) Smaller dirt particles are removed from the air by the filter's - ANSWER element The best place for an operator to find information regarding the handling of all lubricants and safety precaution is in - ANSWER SDS The drive motor and equipment are protected by overload clutches when - ANSWER something jams or binds in the machinery The flexible or rigid protection for electrical wiring to motors is provided mainly for the prevention of - ANSWER damage The following is an important key planned maintenance activity - ANSWER Lubrication of equipment The most common maintenance problem with vibration on fans is caused by - ANSWER sediment and product buildup The most obvious indicator that the V-belt pulleys are worn beyond usefulness is when the - ANSWER belt is touching the bottom of the groove The part of electrical circuits that gives the operator control is the - ANSWER input devise The primary purpose of a switch - ANSWER Energize and DE energize circuits The procedure for identifying machine component failure prior to major breakdown is referred to as a _________ maintenance program. - ANSWER preventive The two major types of misalignment that are corrected by shaft alignment are _____________. - ANSWER angular and parallel The worst enemy of hydraulic system is - ANSWER contamination