Online Electrical Engineering Test - Electrical Engineering Test 5



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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.

How much resistance is required to limit the current from a 12 V battery to 3.6 mA?

A.
3.3 k
B.
33 k
C.
2.2 k
D.
22 k

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Ohm's Law

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2.

The ampere is the unit of resistance.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Ohm's Law

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3.

When a fourth resistor is connected in series with three resistors, the total resistance

A.
increases by one-fourth
B.
increases
C.
decreases
D.
remains the same

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Series Circuits

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4.

A 120 load is connected across an ideal voltage source with VS = 12 V. The voltage across the load

A.
is 0 V
B.
is 12 V
C.
is 120 V
D.
cannot be determined

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Circuit Theorems and Conversions

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5.

What is the reluctance of the circuit in problem 9 if the flux is 275 Wb?

A.
0.0066 At/Wb
B.
0.066 At/Wb
C.
8,727 At/Wb
D.
872 At/Wb

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Magnetism and Electromagnetism

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6.

Hysteresis is the number of lines of force per unit area in a magnetic field.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Magnetism and Electromagnetism

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7.

Electromagnetic induction is the force that produces a magnetic field.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Magnetism and Electromagnetism

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8.

Reluctance in a magnetic circuit is analogous to current in an electrical circuit.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

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9.

If the rms current through a 4.7 k resistor is 4 mA, the peak voltage drop across the resistor is

A.
4 V
B.
18.8 V
C.
26.6 V
D.
2.66 V

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Alternating Current and Voltage

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10.

The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is

A.
2 mH
B.
2 H
C.
4 H
D.
8 H

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Transformers

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11.

If the voltage is stepped up, the current is stepped down, and vice versa.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Transformers

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12.

The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency

A.
must be increased
B.
must be decreased
C.
is held constant
D.
has no effect

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : RC Circuits

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13.

A capacitor with 150 of capacitive reactance is across an ac source. The impedance, expressed in polar form, is

A.
Z = 150
B.
Z = 15090°
C.
Z = 150 –90°
D.
Z = 150180°

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : RC Circuits

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14.

The power factor (PF) indicates how much of the apparent power is true power.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : RC Circuits

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15.

The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Passive Filters

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16.

The Thevenin equivalent voltage is

A.
equal to the source voltage
B.
the same as the load voltage
C.
the open circuit voltage
D.
none of the above

Your Answer: Option (Not Answered)

Correct Answer: Option C

Learn more problems on : Circuit Theorems in AC Analysis

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17.

Referring to the given circuit, L

A.
must be in parallel with RL
B.
must be placed in parallel with VS
C.
must have a reactance equal to XC
D.
has no effect on the result

Your Answer: Option (Not Answered)

Correct Answer: Option D

Learn more problems on : Circuit Theorems in AC Analysis

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18.

Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.

A.
True
B.
False

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Circuit Theorems in AC Analysis

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19.

The output of an RC integrator is taken across the

A.
diode
B.
capacitor
C.
resistor
D.
source

Your Answer: Option (Not Answered)

Correct Answer: Option B

Learn more problems on : Time Response of Reactive Circuits

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20.

Polyphase generators produce simultaneous multiple sinusoidal voltages that are separated by

A.
certain constant phase angles
B.
certain constant frequencies
C.
certain constant voltages
D.
certain constant currents

Your Answer: Option (Not Answered)

Correct Answer: Option A

Learn more problems on : Three-Phase Systems in Power Applications

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