Voltage Regulators - General Questions (5)

Directions to Solve

Voltage Regulators - General Questions

33.

The purpose of the added RC section is to pass most of the dc component while reducing as much of the ac component as possible.

mcq15_01700

A.	True
B.	False

Answer: Option A

Explanation:

No answer description available for this question.

34.

Refer to the given figure. This circuit is known as

mcq18_1006_1a (2)

A.	a series-pass voltage regulator.
B.	a shunt voltage regulator.
C.	a step-up switching regulator.
D.	a step-down switching regulator.

Answer: Option A

Explanation:

No answer description available for this question.

35.

Refer to the given figure. If the output of the circuit were to be a short circuit, what power rating would R₁ need to have?

mcq18_1006_1b (1)

A.	2.25 W
B.	5 W
C.	10 W
D.	22.5 W

Answer: Option D

Explanation:

No answer description available for this question.

36.

In which of the following applications is a pulsating dc voltage suitable?

A.	Battery charger
B.	Radio
C.	Stereo system
D.	Computer

Answer: Option A

Explanation:

No answer description available for this question.

37.

The ________ regulator is less efficient than the ________ type, but offers inherent short-circuit protection.

A.	series, shunt
B.	shunt, series

Answer: Option B

Explanation:

No answer description available for this question.

38.

In this improved series regulator circuit, which of the following components is the sampling circuit?

mcq15_02100

A.	Zener diode
B.	Load resistor
C.	Either of the two transistors Q1 or Q2
D.	Resistors R1 and R2

Answer: Option D

Explanation:

No answer description available for this question.

39.

In which period is the capacitor filter charged in a full-wave rectifier?

A.	The time during the positive cycle
B.	The time during which the diodes are not conducting
C.	The time during which the diode(s) is (are) conducting
D.	The time during the negative cycle

Answer: Option C

Explanation:

No answer description available for this question.

40.

What is the purpose of an additional RC filter section in a power supply circuit?

A.	Increase the dc voltage component
B.	Increase the ac voltage component
C.	Decrease the ac voltage component
D.	None of the above

Answer: Option C

Explanation:

No answer description available for this question.

Voltage Regulators - General Questions (5)

Voltage Regulators - General Questions

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