MSSC Maintenance awareness practice test guide 2023

A chain should be replaced when its length becomes longer than the original length. - 3% A common sign of a misaligned coupling is - excessive vibration A mustimeter is a multipurpose devise that can measure - voltage- current-resistance A power diagram is used in addition to a ladder diagram to determine - all of the above 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 a dial indicator shows - any movement A sight glass in a reservoir usually indicates the of fluid - level A tool should 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 workstation should be designed to minimize motions that can - cause repetitive/ stress injuries All designed workstation places tools and equipment where they can be - available with minimum stress 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 - ladder diagram An employee comes 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 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 - real power Circuit testers determine if electricity is present. - AC Daily maintenance involves daily records because - recurring events can be analyzed to troubleshoot problems 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 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 inspection 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 lock