Question 1
In comparing AC with DC generation
Select one:

Transformers only work with AC
DC generators only have to match voltage
AC generators produce current in the stator
All of the above
None of the above

Transformers only work with AC

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Question 2
The amount of current in a circuit given a voltage of 12 volts and a resistance of 4 ohms is
Select one:

4 Amps
3 Amps
8 Amps
16 Amps

2. 3 Amps

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Question 3
In DC, the electrons flow steadily in a single direction
Select one:
True
False

TRUE

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Question 4
Mark the INCORRECT statement
Select one:

A single-phase system is used for 230V lighting system
Single-phase system has one phase and neutral conductor
Single-phase distribution is mainly used for residential /domestic loads
Single phase supply can power large electric motors

Single phase supply can power large electric motors

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Question 5
Mark the CORRECT statement: The units of real and reactive power are:
Select one:

kW and kVAr
kW and kVA
kVA and kW
None of the above

kW and kVAr

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Question 6
In a delta connection, line voltage and phase voltage are the same
Select one:
True
False

True

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Question 7
The starting current for a cage induction motor with full voltage applied is higher than the full load current
Select one:
True
False

True

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Question 8
In advanced power transmission systems there are negligible power quality problems
Select one:
True
False

False

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Question 9
Which of the following would be considered a sub-transmission voltage?
Select one:

475 kV
220 kV
88 kV
11 kV

88 kV

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Question 10
For an Ideal Transformer
Select one:

a) Voltage ratio is equal to the turns ratio
b) Power In is equal to Power Out
Only a)
Only b)
Both a) and b)

Both a) and b)

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