MSSC-M4 MAINTENANCE AWARENESS PRACTICE TEST- CURRENTLY TESTING EXAM
WITH ACCURATE SOLUTIONS
Kirchoff's Voltage Law for a series circuit shows that the total voltage dropped in a series
circuit is equal to the __________ of the individual voltage drops.
- Smallest
- Sum
- Product
- Largest
sum
Which of the following is an advantage of a circuit breaker over a fuse?
- Costs less
- Takes up less space
- Can be reset
- All of the above
can be reset
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 __________.
- Replace the wiring
- Test the breaker again
- Replace the disconnect
- Replace the equipment
,Test the breaker again
The total power in __________ electrical circuit is calculated by finding the sum of the
individual component power consumption.
- Series
- Parallel
- Any
- An AC
any
The minimum number of sets of contacts a motor starter has depends on the number of
power leads the motor requires.
- True
- False
True
When something binds or jams in rotating machinery, the machinery is protected by a(n)
__________.
- Brake
- Safety latch
- Overload clutch
- Emergency stop
Overload clutch
,If a motor has an excessive load, what event is most likely to occur?
- Operate normally
- Increase speed
- Melt the motor starter contacts
- Blow a fuse or trip a thermal overload
Blow a fuse or trip a thermal overload
Electricians use __________ to prevent damage to electrical wiring running to the machine.
- Black iron pipe
- Fish tape
-`
- Electrician's tape
Rigid and flexible conduit
Which of the two formulas shown is used to calculate total series resistance?
-A
-B
B
The difference between a fuse and a circuit breaker is __________.
- Circuit breakers are cheaper
- Circuit breakers can be reset and used again
, - Fuses are re-usable
- Fuses protect from voltage and circuit breakers protect from current
Circuit breakers can be reset and used again
When current in a circuit is too high, it is usually the result of too many loads or a
__________.
- Poor design
- Power failure
- Open circuit
- Short circuit
short circuit
The S.I. unit for pressure is __________.
- Lbs
- Psi
-N
- Pa
Pa
Which of the following is not a pneumatic safety rule?
- Do not point compressed air at eyes.
- Use low pressure when cleaning with air.
- Use any container for compressed air.
WITH ACCURATE SOLUTIONS
Kirchoff's Voltage Law for a series circuit shows that the total voltage dropped in a series
circuit is equal to the __________ of the individual voltage drops.
- Smallest
- Sum
- Product
- Largest
sum
Which of the following is an advantage of a circuit breaker over a fuse?
- Costs less
- Takes up less space
- Can be reset
- All of the above
can be reset
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 __________.
- Replace the wiring
- Test the breaker again
- Replace the disconnect
- Replace the equipment
,Test the breaker again
The total power in __________ electrical circuit is calculated by finding the sum of the
individual component power consumption.
- Series
- Parallel
- Any
- An AC
any
The minimum number of sets of contacts a motor starter has depends on the number of
power leads the motor requires.
- True
- False
True
When something binds or jams in rotating machinery, the machinery is protected by a(n)
__________.
- Brake
- Safety latch
- Overload clutch
- Emergency stop
Overload clutch
,If a motor has an excessive load, what event is most likely to occur?
- Operate normally
- Increase speed
- Melt the motor starter contacts
- Blow a fuse or trip a thermal overload
Blow a fuse or trip a thermal overload
Electricians use __________ to prevent damage to electrical wiring running to the machine.
- Black iron pipe
- Fish tape
-`
- Electrician's tape
Rigid and flexible conduit
Which of the two formulas shown is used to calculate total series resistance?
-A
-B
B
The difference between a fuse and a circuit breaker is __________.
- Circuit breakers are cheaper
- Circuit breakers can be reset and used again
, - Fuses are re-usable
- Fuses protect from voltage and circuit breakers protect from current
Circuit breakers can be reset and used again
When current in a circuit is too high, it is usually the result of too many loads or a
__________.
- Poor design
- Power failure
- Open circuit
- Short circuit
short circuit
The S.I. unit for pressure is __________.
- Lbs
- Psi
-N
- Pa
Pa
Which of the following is not a pneumatic safety rule?
- Do not point compressed air at eyes.
- Use low pressure when cleaning with air.
- Use any container for compressed air.
