553 + Mcqs in Electrical Engineering McqOptions

1.	Amplitude is the maximum value of a voltage or current.
A.	True
B.	False
Answer» B. False

Discussion

2.	A 1 kHz signal has a period of 1 ms.
A.	True
B.	False
Answer» B. False

Discussion

3.	A ramp is the type of waveform characterized by a non-linear increase or decrease in voltage or current.
A.	True
B.	False
Answer» C.

Discussion

4.	The instantaneous value is the voltage or current value of a waveform at its peak.
A.	True
B.	False
Answer» C.

Discussion

5.	Duty cycle is the characteristic of a pulse waveform that indicates the high time versus the low time.
A.	True
B.	False
Answer» C.

Discussion

6.	The length of a phasor represents the amplitude.
A.	True
B.	False
Answer» B. False

Discussion

7.	Periodic is characterized by a repetition at fixed time intervals.
A.	True
B.	False
Answer» B. False

Discussion

8.	The duty cycle of a pulse waveform with a pulse width of 10 s and a period of 100 s is 25%.
A.	True
B.	False
Answer» C.

Discussion

9.	The angular position of a phasor represents the angle of the sine wave with respect to a reference.
A.	True
B.	False
Answer» B. False

Discussion

10.	The designation rms means repetitions measured per second.
A.	True
B.	False
Answer» C.

Discussion

11.	The unit of frequency is the hertz.
A.	True
B.	False
Answer» B. False

Discussion

12.	Average value of a sine wave is 0.707 times the peak value.
A.	True
B.	False
Answer» C.

Discussion

13.	In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.
A.	True
B.	False
Answer» B. False

Discussion

14.	Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.
A.	True
B.	False
Answer» C.

Discussion

15.	One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.
A.	True
B.	False
Answer» C.

Discussion

16.	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
Answer» C.

Discussion

17.	A Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.
A.	True
B.	False
Answer» C.

Discussion

18.	A free electron is a valence electron that has broken away from its parent atom.
A.	True
B.	False
Answer» B. False

Discussion

19.	Resistance limits the current.
A.	True
B.	False
Answer» B. False

Discussion

20.	A voltmeter is connected across the current path.
A.	True
B.	False
Answer» B. False

Discussion

21.	Watt's law states the relationships of power to energy.
A.	True
B.	False
Answer» C.

Discussion

22.	The watt is the unit of power.
A.	True
B.	False
Answer» B. False

Discussion

23.	A resistor normally opens when it burns out.
A.	True
B.	False
Answer» B. False

Discussion

24.	Energy equals power multiplied by time.
A.	True
B.	False
Answer» B. False

Discussion

25.	An open circuit is one that has a complete current path.
A.	True
B.	False
Answer» C.

Discussion

26.	A neutral atom is one with an equal number of protons and electrons.
A.	True
B.	False
Answer» B. False

Discussion

27.	A battery is one type of power supply that converts chemical energy into electrical energy.
A.	True
B.	False
Answer» B. False

Discussion

28.	The power rating of a resistor determines the minimum power that it can handle safely.
A.	True
B.	False
Answer» C.

Discussion

29.	Power rating is related to resistance value.
A.	True
B.	False
Answer» C.

Discussion

30.	The superposition theorem is useful for circuit analysis only in ac circuits.
A.	True
B.	False
Answer» C.

Discussion

31.	An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.
A.	True
B.	False
Answer» B. False

Discussion

32.	If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.
A.	True
B.	False
Answer» B. False

Discussion

33.	The joule is a unit of energy.
A.	True
B.	False
Answer» B. False

Discussion

34.	The term series opposing means that sources are in series with opposite polarities.
A.	True
B.	False
Answer» B. False

Discussion

35.	The capacity of a battery is measured in milliamperes.
A.	True
B.	False
Answer» C.

Discussion

36.	Energy is equal to power multiplied by voltage.
A.	True
B.	False
Answer» C.

Discussion

37.	In a series RLC circuit, the current is minimum at resonance.
A.	True
B.	False
Answer» C.

Discussion

38.	A short in a series circuit prevents current.
A.	True
B.	False
Answer» C.

Discussion

39.	At series resonance, the inductive reactance and capacitive reactance are never equal.
A.	True
B.	False
Answer» C.

Discussion

40.	A lower Q produces a narrower bandwidth.
A.	True
B.	False
Answer» C.

Discussion

41.	A series circuit acts as a voltage divider.
A.	True
B.	False
Answer» B. False

Discussion

42.	A series circuit acts as a current divider.
A.	True
B.	False
Answer» C.

Discussion

43.	A parallel circuit acts as a current divider.
A.	True
B.	False
Answer» B. False

Discussion

44.	Addition of resistors in parallel increases total resistance and decreases total current.
A.	True
B.	False
Answer» C.

Discussion

45.	XL and XC have opposing effects in an RLC circuit.
A.	True
B.	False
Answer» B. False

Discussion

46.	Generally, the mesh current method results in fewer equations than the node voltage method.
A.	True
B.	False
Answer» C.

Discussion

47.	Second-order determinants are evaluated by subtracting the signed cross-products.
A.	True
B.	False
Answer» C.

Discussion

48.	The mesh method can be applied to circuits with any number of loops.
A.	True
B.	False
Answer» B. False

Discussion

49.	The total resistance for two resistors in parallel is equal to the sum of the two resistors.
A.	True
B.	False
Answer» C.

Discussion

50.	The total current divides among parallel resistors in a manner directly proportional to the resistance values.
A.	True
B.	False
Answer» C.

Discussion

Explore topic-wise MCQs in Testing Subject.

Amplitude is the maximum value of a voltage or current.

A 1 kHz signal has a period of 1 ms.

A ramp is the type of waveform characterized by a non-linear increase or decrease in voltage or current.

The instantaneous value is the voltage or current value of a waveform at its peak.

Duty cycle is the characteristic of a pulse waveform that indicates the high time versus the low time.

The length of a phasor represents the amplitude.

Periodic is characterized by a repetition at fixed time intervals.

The duty cycle of a pulse waveform with a pulse width of 10 s and a period of 100 s is 25%.

The angular position of a phasor represents the angle of the sine wave with respect to a reference.

The designation rms means repetitions measured per second.

The unit of frequency is the hertz.

Average value of a sine wave is 0.707 times the peak value.

In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.

Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.

One circuit is equivalent to another, in the context of Thevenin's theorem, when the circuits produce the same voltage.

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 Thevenin ac equivalent circuit always consists of an equivalent ac voltage source and an equivalent capacitance.

A free electron is a valence electron that has broken away from its parent atom.

Resistance limits the current.

A voltmeter is connected across the current path.

Watt's law states the relationships of power to energy.

The watt is the unit of power.

A resistor normally opens when it burns out.

Energy equals power multiplied by time.

An open circuit is one that has a complete current path.

A neutral atom is one with an equal number of protons and electrons.

A battery is one type of power supply that converts chemical energy into electrical energy.

The power rating of a resistor determines the minimum power that it can handle safely.

Power rating is related to resistance value.

The superposition theorem is useful for circuit analysis only in ac circuits.

An equivalent circuit is one that produces the same voltage and current to a given load as the original circuit that it replaces.

If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.

The joule is a unit of energy.

The term series opposing means that sources are in series with opposite polarities.

The capacity of a battery is measured in milliamperes.

Energy is equal to power multiplied by voltage.

In a series RLC circuit, the current is minimum at resonance.

A short in a series circuit prevents current.

At series resonance, the inductive reactance and capacitive reactance are never equal.

A lower Q produces a narrower bandwidth.

A series circuit acts as a voltage divider.

A series circuit acts as a current divider.

A parallel circuit acts as a current divider.

Addition of resistors in parallel increases total resistance and decreases total current.

XL and XC have opposing effects in an RLC circuit.

Generally, the mesh current method results in fewer equations than the node voltage method.

Second-order determinants are evaluated by subtracting the signed cross-products.

The mesh method can be applied to circuits with any number of loops.

The total resistance for two resistors in parallel is equal to the sum of the two resistors.

The total current divides among parallel resistors in a manner directly proportional to the resistance values.