Multi-Stage Transistor Amplifiers MCQs

Option A: 60 db

Option B: 30 db

Option C: 120 db

Option D: 600 db

Correct Answer: 60 db ✔

Option A: Resonant

Option B: Sideband

Option C: 3 db

Option D: None of the above

Correct Answer: 3 db ✔

Option A: 2 W

Option B: 6 W

Option C: 68 W

Option D: None of the above

Correct Answer: 68 W ✔

Option A: Changes in temperature cause thermal instability

Option B: Circuit becomes heavy and costly

Option C: It becomes difficult to bias the circuit

Option D: None of the above

Correct Answer: Changes in temperature cause thermal instability ✔

Option A: More than

Option B: The same as

Option C: Less than

Option D: Data insufficient

Correct Answer: More than ✔

Option A: 5 mV

Option B: 2 mV

Option C: 8 mV

Option D: 5 mV

Correct Answer: 5 mV ✔

Option A: 5 db

Option B: 2 db

Option C: 10 db

Option D: 3 db

Correct Answer: 3 db ✔

Option A: RC coupling

Option B: Transformer coupling

Option C: Direct coupling

Option D: None of the above

Correct Answer: RC coupling ✔

Option A: 30 db

Option B: 60 db

Option C: 120 db

Option D: 600 db

Correct Answer: 60 db ✔

A. Step up
B. Step down
C. Same turn ratio
None of the above

Correct Answer: Step down ✔

Option A: 600 db

Option B: 24 db

Option C: 14 db

Option D: 27 db

Correct Answer: 27 db ✔

Option A: Large

Option B: Very large

Option C: Small

Option D: None of the above

Correct Answer: Small ✔

Option A: RC

Option B: Transformer

Option C: Direct

Option D: Impedance

Correct Answer: Transformer ✔

Option A: 100 pF

Option B: 0.1 µF

Option C: 0.01 µF

Option D: 10 µF

Correct Answer: 10 µF ✔

Option A: RC

Option B: Transformer

Option C: Direct

Option D: None of the above

Correct Answer: Direct ✔

Option A: Amplifier level output is kept constant

Option B: Amplifier frequency is held constant

Option C: Generator frequency is held constant

Option D: Generator output level is held constant

Correct Answer: Generator output level is held constant ✔

Option A: To pass d.c. between the stages

Option B: Not to attenuate the low frequencies

Option C: To dissipate high power

Option D: None of the above

Correct Answer: Not to attenuate the low frequencies ✔

Option A: RC

Option B: Transformer

Option C: Direct

Option D: None of the above

Correct Answer: Direct ✔

Option A: In db

Option B: In volts

Option C: As a number

Option D: None of the above

Correct Answer: In db ✔

Option A: RC coupling

Option B: Transformer coupling

Option C: Direct coupling

Option D: Impedance coupling

Correct Answer: Transformer coupling ✔

Option A: There is considerable power loss

Option B: There is hum in the output

Option C: Electrical size of coupling capacitor becomes very large

Option D: None of the above

Correct Answer: Electrical size of coupling capacitor becomes very large ✔

Option A: 40%

Option B: 80%

Option C: 20%

Option D: 25%

Correct Answer: 40% ✔

A. Power loss in the coupling device
B. Loading effect of the next stage
C. The use of many transistors
The use of many capacitors

Correct Answer: Loading effect of the next stage ✔

Option A: 3 db

Option B: 66 db

Option C: 20 db

Option D: 200 db

Correct Answer: 66 db ✔

A. Block a.c.
B. Separate bias of one stage from another
C. Increase thermal stability
None of the above

Correct Answer: Separate bias of one stage from another ✔

Option A: 1 µF

Option B: 100 pF

Option C: 0.01 µF

Option D: 50 µF

Correct Answer: 50 µF ✔

Option A: Large value of coupling capacitor

Option B: Low efficiency

Option C: Large number of components

Option D: None of the above

Correct Answer: Low efficiency ✔

Option A: 8 db

Option B: 6 db

Option C: 5 db

Option D: 4 db

Correct Answer: 8 db ✔

Option A: It is a simple unit

Option B: Calculations become easy

Option C: Human ear response is logarithmic

Option D: None of the above

Correct Answer: Human ear response is logarithmic ✔

Option A: Good

Option B: Very good

Option C: Excellent

Option D: Poor

Correct Answer: Poor ✔

Option A: 50%

Option B: 35%

Option C: 26%

Option D: 22%

Correct Answer: 26% ✔

Option A: Sideband

Option B: Resonant

Option C: Half-resonant

Option D: Half-power

Correct Answer: Half-power ✔

A. Frequency distortion
B. Amplitude distortion
C. Frequency as well as amplitude distortion
None of the above

Correct Answer: Frequency distortion ✔

Option A: Collector voltage is stepped up

Option B: resistance is low

Option C: collector voltage is stepped down

Option D: none of the above

Correct Answer: resistance is low ✔

Option A: 0

Option B: 1

Option C: 1

Option D: 10

Correct Answer: 0 ✔

Option A: Power

Option B: Voltage

Option C: Current

Option D: None of the above

Correct Answer: Power ✔

Option A: Good impedance matching

Option B: Economy

Option C: High efficiency

Option D: None of the above

Correct Answer: Economy ✔

Option A: Changes abruptly with frequency

Option B: Is constant

Option C: Changes uniformly with frequency

Option D: None of the above

Correct Answer: Is constant ✔

Option A: Voltage

Option B: Current

Option C: Power

Option D: None of the above

Correct Answer: Voltage ✔

Option A: One stage

Option B: Two stages

Option C: Three stages

Option D: More than one stages

Correct Answer: More than one stages ✔