JOIN ADRE 2.0 Telegram Group

Transistor Audio Power Amplifier Quiz | Transistor Audio Power Amplifier Multiple Choice Questions and Answers

Questions
1 Low efficiency of a power amplifier results in ……………….
A Low forward bias
B Less battery consumption
C More battery consumption
D None of the above

Answer: More battery consumption
2 The size of a power transistor is made considerably large to …………
A Provide easy handling
B Dissipate heat
C Facilitate connections
D None of the above

Answer: Dissipate heat
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

3 The output stage of a multistage amplifier usually employs ………..
A Push-pull amplifier
B Preamplifier
C Class A power amplifier
D None of the above

Answer: Push-pull amplifier
4 Class ………….. operation gives the maximum distortion
A A
B B
C C
D AB

Answer: C
5 A class A power amplifier is sometimes called ………….. amplifier
A Symmetrical
B Single-ended
C Reciprocating
D Differential

Answer: Single-ended
6 When a transistor is cut off……………..
A Maximum voltage appears across transistor
B Maximum current flows
C Maximum voltage appears across load
D None of the above

Answer: Maximum voltage appears across transistor
7 If the zero signal dissipation of a transistor is 1W, then power rating of the transistor should be at least ……………….
A 5 W
B 33 W
C 75 W
D 1 W

Answer: 1 W
8 If a transistor is operated in such a way that output current flows for 60o of the input signal, then it is …………… operation
A Class A
B Class B
C Class C
D None of the above

Answer: Class C
9 A 2-transistor class B power amplifier is commonly called ……….. amplifier
A Dual
B Push-pull
C Symmetrical
D Differential

Answer: Push-pull
10 The maximum collector efficiency of class B operation is ……………..
A 50%
B 90%
C 5%
D 5%

Answer: 5%
11 A power amplifier has comparatively …………….. ß
A Small
B Large
C Very large
D None of the above

Answer: Small
12 Class C amplifiers are used as …………….
A AF amplifiers
B Detectors
C F. amplifiers
D None of the above

Answer: F. amplifiers
13 In class A operation, the operating point is generally located ………. of the d.c. load line.
A At cut off point
B At the middle
C At saturation point
D None of the above

Answer: At the middle
14 Power amplifiers handle …………. signals compare to voltage amplifiers
A Small
B Very small
C Large
D None of the above

Answer: Large
15 Class……. power amplifier has the highest collector efficiency
A C
B A
C B
D AB

Answer: C
16 The maximum efficiency of transformer coupled class A power amplifier is ………………
A 30%
B 50%
C 80%
D 45%

Answer: 50%
17 The maximum efficiency of resistance loaded class A power amplifier is ……..
A 5%
B 50%
C 30%
D 25%

Answer: 25%
18 A class A power amplifier uses …………
A Two transistors
B Three transistors
C One transistor
D None of the above

Answer: One transistor
19 ………………. coupling is generally employed in power amplifiers
A Transformer
B RC
C direct
D Impedance

Answer: Transformer
20 The output stage of a multistage amplifier is also called ……………
A Mixer stage
B Power stage
C Detector stage
D F stage

Answer: Power stage

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement