11/05/2024 12:06 PM
BOMA: Motor Controls Exam Questions
With Correct Answers
A 3600 RPM motor has: - answer✔two poles
If you throttled the discharge side of a centrifugal pump into closed the amps would: - answer✔go up
The common method of correcting power factor is: - answer✔add a capacitor
To convert AC to DC you would need: - answer✔rectifier
*To convert DC to AC we would need: - answer✔converter or inverter
The actual full load amps of a motor are found? - answer✔nameplate of the motor
Three factors which must be considered when selecting a fuse or circuit breaker: - answer✔amps, volts,
interrupting capacity
A fluorescent tube F40 has a diameter of: - answer✔1 1/2 inches
If the motor is drawing excessive amps you would expect to find it: - answer✔run hot
On a plan "scale 1/8" = 1', then 2 1/2 inches in a ruler equals: - answer✔20 feet
, ©THEBRIGHT EXAM SOLUTIONS
11/05/2024 12:06 PM
The most practical type of switch used to control lights from two locations is a _____? - answer✔3 way
switch
Electrical Metallic Tubing (EMT) is sometimes called: - answer✔thinwall
The cross-sectional area of electrical wire is measured in: - answer✔circular mils
The purpose of a bypass isolation switch: - answer✔allows testing of the emergency generator (ATS)
The purpose of a UPS system is to: - answer✔supply a regulated voltage with the frequency stability to
the critical load
Which of the following are not required on high-rise buildings: - answer✔U.P.S. system
A "day tank" is used with: - answer✔Emergency generator
A "jockey pump" is used with: - answer✔fire sprinkler system
*Which is required in all computer rooms: - answer✔Emergency electrical shutoff\Halon system
The capacitor is a device that: - answer✔stores an electrical charge
*What would be the wattage of a D.C. circuit drawing a two amp load with a resistance of five hundred
ohms?: - answer✔2000 watts/1000 watts
The action of a diode is to: - answer✔allow current flow only in one direction
, ©THEBRIGHT EXAM SOLUTIONS
11/05/2024 12:06 PM
*Two 50-ohm resistor's in parallel would have the same resistance value as one: - answer✔100-ohm
resistor/25-ohm resistor
A double pole switch is used when it is necessary to open both conductors of a circuit. - answer✔True
Ohm is a unit of electrical resistance. - answer✔True
A series circuit is a circuit that has more than one path for current through the components. -
answer✔False
A parallel circuit is a circuit in which the voltage across each branch is the same. - answer✔True
The state of charge the battery is measured with: - answer✔hydrometer
When charging a battery at a high rate, the rate must be reduced to the normal rate if the: -
answer✔electrolyte temperature exceeds 100°F.
Storage batteries are rated for ampere-hour capacity and _____. - answer✔voltage
*The resistance of a copper conductor is inversely proportional to the: - answer✔current through the
conductor
If the light is to be controlled from three different locations, the following switches must be used: -
answer✔two three-way and one four-way
A 3 way switch is similar to a _____? - answer✔single pole, double throw switch