MSSC Maintenance Awareness Questions and Answers Rated A+

MSSC Maintenance Awareness Questions and Answers Rated A+ When connecting a 3-phase motor the three lines (T1,T2 and T3) are usually connected to __________. - Answer ️️ -- L1, L2, and L3 Electricians use __________ to prevent damage to electrical wiring running to the machine. - Answer ️️ -- rigid and flexible conduit When the wire or foil strip inside a fuse melts, the fuse is said to be __________. - Answer ️️ -- blown The difference between a fuse and a circuit breaker is __________. - Answer ️️ -- circuit breakers can be reset and used again The amount two electrical waveforms are out of phase is measured in __________. - Answer ️️ -- degrees The type of overload protection that protects the motor by disconnecting it physically instead of electrically is a(n) __________. - Answer ️️ -- overload clutch Which of the following is an advantage of a circuit breaker over a fuse? - Answer ️️ -- Can be reset *T or F The minimum number of sets of contacts a motor starter has depends on the number of power leads the motor requires. - Answer ️️ -- True When current in a circuit is too high, it is usually the result of too many loads or a __________. - Answer ️️ -- short circuit The measure of energy consumed by a circuit is called __________. - Answer ️️ -- power For a single-phase AC motor, only __________ motor wires connect to the power lines. - Answer ️️ -- 2 A technician has removed a piece of equipment from a disconnect, but the breaker still trips. The next step is to check the wiring to the disconnect and __________. - Answer ️️ -- test the breaker again The Ohm's Law formula for calculating voltage is __________. - Answer ️️ -- E = I × R When something binds or jams in rotating machinery, the machinery is protected by a(n) __________. - Answer ️️ -- overload clutch If a motor has an excessive load, what event is most likely to occur? - Answer ️️ -- Blow a fuse or trip a thermal overload The total power in __________ electrical circuit is calculated by finding the sum of the individual component power consumption. - Answer ️️ -- any Electrical wiring that runs in exposed locations must be protected by pipe or tubing called __________. - Answer ️️ -- condu