MSSC MAINTENANCE AWARENESS PRACTICE TEST WITH 100% CORRECT ANSWERS

A burn or pungent odor of oil indicates excessive temperature A Chain should be replaced when its length becomes ______longer than the original length. 3 percent A common sign of a misaligned coupling is _____________. excessive vibration A multimeter is a multipurpose devise that can measure voltage, current, and resistance A power diagram is used in addition to a ladder diagram to determine_________. All of these (How the input functions on the machine, The sequence of operations, How the output functions on the machine) A power tool has the ground prong broken off of the plug on the power cord. What should be done? Remove the power tool from service A shaft coupling may be out of round if dial indicator shows _____________. any movement A sight glass in a reservoir usually indicates the ______ of fluid. level A tool should be sharpened When an unacceptable surface finish is present A viscos meter is a device used for measuring the viscosity of an oil and is generally _______ accurate. 95%-99% A well designed workstation places tools and equipment where they can be available with minimum stress A workstation should be designed to minimize motions that can cause repetitive/ stress injuries All documentation of preventive maintenance should be kept in a designated, safe and secure location An electrical diagram that arranges wires of a circuit into order rows is called a(n) _____________. ladder diagram An employee come to work on a rainy day and finds water dripping on tools in their workstation. What should the employee do first? report the situation to the supervisor Because dial indicators are fairly delicate, they should _________ during adjustment of the motor position. be removed Before adjusting motor position during a shaft alignment always make sure to remove the _____________. dial indicator Both analog and digital voltmeters measure Potential difference Circuit testers determine if ______ electricity is present. AC Daily maintenance involves daily records because Recurring events can be analyzed to troubleshoot problems Records indicate how long a machine will run without lubrication Devises called ____________ often serve as the brains of the automated machine. relays Documentation that should be kept regarding a specific piece of equipment includes maintenance log Feeler gauge, rulers, height gauges and dial indicators are commonly used for which task? alignment of industrial machines For purposes of an oil analysis, one important category of information will be the Oil viscosity Gas cylinders need to be chained securely to keep them from falling or tipping over Heavy axial loads are better handled by ________? angular contact bearings High temperature can _____________ of a bearing. limit life Housekeeping inspections and audits should include Unbiased auditors or inspectors How is a cam likely to be mounted on a shaft? welded How many extension cords are permitted to run across the floor of a workstation? 0 If a company does follow-up work after a PM that is considered ________maintenance. reactive If a machine is expected to have downtime for several shifts, the appropriate communication between shifts for Lockout/Tagout procedures is verify energy state on machine, then change locks If a motor starts blowing fuses or tripping thermals, the most likely cause is 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. replace the circuit breaker If suspended metal products were found in oil analysis, it would indicate Bearing problems In a PM audit, the _____ would likely be negatively impacted if there were a large number of uncompleted PM work orders. critical path It is important to have a/an ____________ to complete the PM work on a machine completion date Leveling all machine components prior to coupling them _____________. reduces the number of needed shims Low pressure in a hydraulic pump's suction line causes what malfunction? cavitation Lubrication and other _____________ maintenance activities should be checked daily to ensure they are performed. preventive Machine closures usually have _______ to prevent entry during machine operation. limit switch - interlocks and photocells Making sure that a motor shaft is level increases stress on the motor Misaligned coupling can cause _________ in machinery. vibration Motor shaft runout is checked to make sure of proper _____________. alignment of mating components NOT logic is formed by _____________. one normally closed switch Oxygen cylinders must be kept ______ away from combustion points. 25 ft. Predictive maintenance is a type of maintenance program that does what function? identifies machine parts or components failures before a major breakdown Preventive maintenance schedule would commonly include frequency Prior to shutting down a machine for preventive maintenance, the operator must remove all the debris and any residue from the machine Proper storage of tools helps keep them in good working order Reactive Maintenance is considered a(n) _____________ activity. unplanned maintenance Scheduled housekeeping inspections would ordinarily include verification that the floor is clean and free of debris