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WorksheetsEIM Reviewer Part 3
Total questions: 15
Worksheet time: 8mins
The selection requirements for circuit breaker are
Ampacity, Rated Power and Rated Voltage
Ampere Frame, Ampacity and Kilo Ampere Interrupting Capacity
Kilo Ampere Interrupting Capacity, Ampere Trip and Ampere Frame
Ampere Frame, Full Load Current and Rated Voltage
The size of circuit breaker to be used in 40A motor full load current is
Not less than 125% of the full load
More than 115% of the full load
Less than 50AT
Equal to 100AT
What is the commonly used conduit in service entrance?
PVC
EMT
RSC/IMC
Flex Conduit
Why is it necessary to use torque wrench in tightening bolted joints of copper bus ducts and bus ways?
To prevent heating of joints
To reduce the resistance in the joints
To make sure the joints are well tightened
To give allowance for thermal expansion
When tightening a terminal screw connection, the end of the wire should pass around the screw in the same direction as the screw is turned so that
The wire will act as a locknut
Any pull on the wire will tighten the screw
The wire will not turn off
The screw can be remove easily
Most of the required electrical parameters apply to an incandescent bulb are...
Rated power and rated voltage
Rated resistance and rated current
Rated current and rated voltage
Rated power and rated current
These are sheet metal troughs with hinged or removable covers for housing and protecting electrical wires and cables and in which conductors are laid in place these are installed. They are called
Bus ways
Wire ways
Cable ducts
Cable trays
A technical term for type THW wires used mostly in industrial wirings is
PVC Insulated Heat Resistance
Moisture and Heat Resistance
Thermoplastic Poly Vinyl Chloride
Plastic Covering
It is the connection between the grounded circuit conductor and the equipment grounding conductor at the service.
Bonding jumper, main
Bonding jumper, equipment
Bonding Jumper
Grounding Electrode Conductor
What is the ampacity of #8 (5.5) sq. mm. THW wire?
35 amperes
20 amperes
25 amperes
50 amperes
Commonly used adhesive materials for joining of PVC conduit
Bonding jumper
Grounding electrode conductor
PVC cement
PVC solvent
A mechanical connector that is crimped unto a conductor for both splice and termination is known as
Split bolt connector
Solderless connector
Mechanical lug
Bolt connector
What are the types of fittings commonly used for exposed conduit support?
Condulet
Connector
Locknut and bushing
Conduit Strap/Clamp
One most advantage of using rubber insulation tape in splice is
Does not deteriorate with age
Is able to withstand high temperature
Does not absorb much moisture
All of the above
When measuring load resistance, the ohmmeter is connected
In series with the load
Parallel with the source
Across the terminals of the load
From one load terminal to ground
