Online Electrical Engineering Test - Electrical Engineering Test 6



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Instruction:

  • This is a FREE online test. DO NOT pay money to anyone to attend this test.
  • Total number of questions : 20.
  • Time alloted : 30 minutes.
  • Each question carry 1 mark, no negative marks.
  • DO NOT refresh the page.
  • All the best :-).


1.

A two-terminal variable resistor is known as a

A.
potentiometer
B.
thermistor
C.
rheostat
D.
wiper

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Voltage, Current and Resistance

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2.

If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is

A.
220 k
B.
22 k
C.
2.2 k
D.
220

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Ohm's Law

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3.

How many watt-hours represent 65 W used for 18 h?

A.
11.7 Wh
B.
1,170 Wh
C.
11,700 Wh
D.
117,000 Wh

Your Answer: Option (Not Answered)

Correct Answer: Option B

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4.

If a 6 V and a 9 V source are connected series aiding, the total voltage is

A.
6 V
B.
9 V
C.
3 V
D.
15 V

Your Answer: Option (Not Answered)

Correct Answer: Option D

Learn more problems on : Series Circuits

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5.

The total resistance of a circuit is 680 . The percentage of the total voltage appearing across a 47 resistor that makes up part of the total series resistance is

A.
68%
B.
47%
C.
69%
D.
6.91%

Your Answer: Option (Not Answered)

Correct Answer: Option D

Learn more problems on : Series Circuits

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6.

The output of a certain voltage divider is 12 V with no load. When a load is connected, the output voltage

A.
decreases
B.
increases
C.
remains the same
D.
becomes zero

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Series-Parallel Circuits

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7.

The higher the range setting, the less the internal resistance and the greater the load effect of the voltmeter on a circuit.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Series-Parallel Circuits

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8.

Find the current through R2 of the given circuit.

A.
30.7 mA
B.
104 mA
C.
74 mA
D.
134 mA

Your Answer: Option (Not Answered)

Correct Answer: Option D

Learn more problems on : Circuit Theorems and Conversions

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9.

Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?

A.
Wave A leads wave B by 15°.
B.
Wave A lags wave B by 15°.
C.
Wave A leads wave B by 105°.
D.
Wave A lags wave B by 105°.

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Alternating Current and Voltage

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10.

An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is

A.
1 mA
B.
10 mA
C.
100 mA
D.
1 A

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Inductors

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11.

The permeability of a core material is an indication of the ability of the material to establish a magnetic field.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Inductors

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12.

An induced voltage is produced as a result of a dc voltage.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

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13.

What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV?

A.
4 kVA
B.
0.25 kVA
C.
16 kVA
D.
8 kVA

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Transformers

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14.

The primary of a transformer is connected to a 6 V battery. The turns ratio is 1:3 and the secondary load, RL, is 100 . The voltage across the load is

A.
0 V
B.
6 V
C.
18 V
D.
2 V

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Transformers

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15.

Total current in an RC circuit always leads the source voltage.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : RC Circuits

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16.

A 1.2 k resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is

A.
152.6
B.
1,526
C.
1,200
D.
942

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : RL Circuits

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17.

In a series RLC circuit, the larger reactance determines the net reactance of the circuit.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : RLC Circuits and Resonance

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18.

The reactive voltages, VL and VC, cancel at resonance.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : RLC Circuits and Resonance

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19.

The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is

A.
0 V
B.
15 V
C.
10.60 V
D.
21.21 V

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Passive Filters

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20.

An RC high-pass filter consists of an 820 resistor. What is the value of C so that Xc is ten times less than R at an input frequency of 12 kHz?

A.
81 F
B.
161 F
C.
0.161 F
D.
220 F

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Passive Filters

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