553 + Mcqs in Electrical Engineering Page 6 McqOptions

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

Discussion

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

Discussion

253.	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

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

Discussion

255.	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

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

Discussion

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

Discussion

258.	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

259.	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

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

Discussion

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

Discussion

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

Discussion

263.	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

264.	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

265.	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

266.	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

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

281.	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

282.	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

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

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

Discussion

300.	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 Engineering.

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.