BOMA - Electric Motor Controls
Study online at https://quizlet.com/_bz1wjj
1. How does a U.P.S. (uninterruptable power supply) AC rectified to DC
work? batteries then in-
verted to AC
2. Batteries energy capacity is measured in Amp-hours
3. Batteries have two rated values: Voltage and
Amp-hours
4. How do you top off water in a battery cell? Distilled water
when the level is
below the plates
5. A voltage monitor relay is used for: Starting backup
generators
6. Fuel for diesel generators is often stored in a: Day tank
7. ________ converts between electrical and mechani- Motor, Generator,
cal power Alternator
8. The Field Winding on a generator Produces the
magnetic field
9. The stationary member of a generator is called a Stator
10. A motor Converts electri-
cal energy into
mechanical ener-
gy
11. An armature is: The movable por-
tion of a contactor
12. In a process control, delay is: The time it takes
for a change in the
process to be felt
13. What is the difference between a contactor and a A starter has over-
starter? load protection
1/9
, BOMA - Electric Motor Controls
Study online at https://quizlet.com/_bz1wjj
14. How is a holding circuit wired? Stop pushbuttons
in series, Start
pushbuttons in
parallel, Using a
holding contact
15. What protects circuits from short circuits? Breakers
16. Soft-starts work by: Lowing voltage
during start up
17. When a starter has a built in disconnect, we call it a: Combination
Starter
18. Normally closed means: There is continuity
when the compo-
nent is on the shelf
19. What is an example of a P.E. switch? Pressure operat-
ed electric switch
20. The input and output power of a transformer is rated KVA
in:
21. A soft start is used to: Reduce starting
current
22. AC motors speed is determined by: The number of
poles
23. DC arcs Are the most diffi-
cult to extinguish
24. Arc chutes Help confine the
arcs
25. The lower the NEMA rating on a contactor: The lower the cur-
rent it can handle
2/9
Study online at https://quizlet.com/_bz1wjj
1. How does a U.P.S. (uninterruptable power supply) AC rectified to DC
work? batteries then in-
verted to AC
2. Batteries energy capacity is measured in Amp-hours
3. Batteries have two rated values: Voltage and
Amp-hours
4. How do you top off water in a battery cell? Distilled water
when the level is
below the plates
5. A voltage monitor relay is used for: Starting backup
generators
6. Fuel for diesel generators is often stored in a: Day tank
7. ________ converts between electrical and mechani- Motor, Generator,
cal power Alternator
8. The Field Winding on a generator Produces the
magnetic field
9. The stationary member of a generator is called a Stator
10. A motor Converts electri-
cal energy into
mechanical ener-
gy
11. An armature is: The movable por-
tion of a contactor
12. In a process control, delay is: The time it takes
for a change in the
process to be felt
13. What is the difference between a contactor and a A starter has over-
starter? load protection
1/9
, BOMA - Electric Motor Controls
Study online at https://quizlet.com/_bz1wjj
14. How is a holding circuit wired? Stop pushbuttons
in series, Start
pushbuttons in
parallel, Using a
holding contact
15. What protects circuits from short circuits? Breakers
16. Soft-starts work by: Lowing voltage
during start up
17. When a starter has a built in disconnect, we call it a: Combination
Starter
18. Normally closed means: There is continuity
when the compo-
nent is on the shelf
19. What is an example of a P.E. switch? Pressure operat-
ed electric switch
20. The input and output power of a transformer is rated KVA
in:
21. A soft start is used to: Reduce starting
current
22. AC motors speed is determined by: The number of
poles
23. DC arcs Are the most diffi-
cult to extinguish
24. Arc chutes Help confine the
arcs
25. The lower the NEMA rating on a contactor: The lower the cur-
rent it can handle
2/9
