Electric Motors Controls BOMA UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How does a U.P.S. (Uninterruptible power supply) work? - CORRECT ANSWER - AC
rectified to DC batteries then Inverted to AC
Batteries energy capacity is measured in? - CORRECT ANSWER - Amp-hours
Batteries have two rated values. - CORRECT ANSWER - Voltage and amp-hours
How do you top off water in a battery cell? - CORRECT ANSWER - Distilled water when
the level is below the plate.
A voltage monitor relay is used for? - CORRECT ANSWER - Starting backup generators.
Fuel for diesel generators is often stored in a? - CORRECT ANSWER - Day tank
_____ converts between electrical and mechanical power. - CORRECT ANSWER - Motor,
Generator, alternator.
The field winding on a generator: - CORRECT ANSWER - Produces the magnetic field.
The stationary members of a generator is called a - CORRECT ANSWER - Stator
A motor - CORRECT ANSWER - Converts electrical energy into mechanical energy.
an armature is - CORRECT ANSWER - The movable portion of a contractor.
, In a process control, delay is: - CORRECT ANSWER - The time it takes for a change in
the process to be felt.
What is the difference between a contactor and a starter? - CORRECT ANSWER -A
starter has overload protection
How is a holding circuit wired? - CORRECT ANSWER - Stop push buttons I series,
Start push buttons in parallel,
Using a holding contact.
What protects circuits from short circuits? - CORRECT ANSWER - Breakers
Soft-starts work by? - CORRECT ANSWER - Lowering voltage during start up
When a starter has a built in disconnect, we call it a? - CORRECT ANSWER -
Combination starter
Normally closed means? - CORRECT ANSWER - There is continuity when the
component is on the shelf
What is an example of a P.E. Switch? - CORRECT ANSWER - Pressure operated electric
switch.
The input and output power of a transformer is rated in? - CORRECT ANSWER - KVA
A soft start is used to? - CORRECT ANSWER - Reduce starting current
AC motor speed is determined by? - CORRECT ANSWER - The number of poles.
ACTUAL Exam Questions and CORRECT
Answers
How does a U.P.S. (Uninterruptible power supply) work? - CORRECT ANSWER - AC
rectified to DC batteries then Inverted to AC
Batteries energy capacity is measured in? - CORRECT ANSWER - Amp-hours
Batteries have two rated values. - CORRECT ANSWER - Voltage and amp-hours
How do you top off water in a battery cell? - CORRECT ANSWER - Distilled water when
the level is below the plate.
A voltage monitor relay is used for? - CORRECT ANSWER - Starting backup generators.
Fuel for diesel generators is often stored in a? - CORRECT ANSWER - Day tank
_____ converts between electrical and mechanical power. - CORRECT ANSWER - Motor,
Generator, alternator.
The field winding on a generator: - CORRECT ANSWER - Produces the magnetic field.
The stationary members of a generator is called a - CORRECT ANSWER - Stator
A motor - CORRECT ANSWER - Converts electrical energy into mechanical energy.
an armature is - CORRECT ANSWER - The movable portion of a contractor.
, In a process control, delay is: - CORRECT ANSWER - The time it takes for a change in
the process to be felt.
What is the difference between a contactor and a starter? - CORRECT ANSWER -A
starter has overload protection
How is a holding circuit wired? - CORRECT ANSWER - Stop push buttons I series,
Start push buttons in parallel,
Using a holding contact.
What protects circuits from short circuits? - CORRECT ANSWER - Breakers
Soft-starts work by? - CORRECT ANSWER - Lowering voltage during start up
When a starter has a built in disconnect, we call it a? - CORRECT ANSWER -
Combination starter
Normally closed means? - CORRECT ANSWER - There is continuity when the
component is on the shelf
What is an example of a P.E. Switch? - CORRECT ANSWER - Pressure operated electric
switch.
The input and output power of a transformer is rated in? - CORRECT ANSWER - KVA
A soft start is used to? - CORRECT ANSWER - Reduce starting current
AC motor speed is determined by? - CORRECT ANSWER - The number of poles.
