Electrical - Test 1


1. Define voltage using an analogy:
A. Rate at which current flows
B. Continuous loop of electrical current flowing along wires
C. Uninterrupted electrical pathway
D. Measurement of electricity in terms of pressure


2. In general, resistance in a conductor depends on four factors. Which are they?
A. Volts, Amps, Ohm's and Heat
B. Volts, Amps, Ohm's and Current
C. Material, Length, Cross-sectional area, Voltage
D. Material, Length, Cross-sectional area, Temperature


3. Which of the following devices would NOT be considered a manual operator?
A. Limit Switch
B. Pushbutton Switch
C. Selector Switch
D. Toggle Switch


4. An extra metal mesh or platform is installed where switches need to be operated in a substation to provide extra protection for switch operators from what?
A. Touch and step potentials
B. Static discharge
C. Lightning strikes
D. Insulator collapse


5. Receptacles, plugs, and connectors shall have the terminal intended for connection to the grounded conductor identified by:
A. A green screw
B. The word 'white' or the letter 'w'
C. An identifying label
D. A gold star


6. Opening the secondary of an energized CT power meter, without shunting the CT may result in what?
A. Circuit breaker operation
B. Relay failure
C. Arcing and insulation failure
D. Under-metering the customer


7. A distribution substation will typically _________ the incoming voltage?
A. Step up
B. Step down
C. Convert
D. Invert


8. Equipment in a substation which is isolated from ground, by being installed on insulators?
A. Regulators
B. Capacitors
C. Transformers
D. Circuit breakers


9. A live, current-carrying line, when located inside the substation yard is called what?
A. Grounding circuit
B. Current grid
C. Source feeder
D. Bus


10. The voltage induced in an inductor is represented as?
A. Product of its inductance and current through it
B. Ratio of its inductance to current through it
C. Ratio of current through it to its inductance
D. Product of its inductance and rate of change of current through it







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