Transistor Tuned Amplifiers Multiple Choice Questions with Answers

This article lists 100 Transistor Tuned Amplifiers MCQs for Engineering Students. All the Transistor Tuned Amplifiers Questions & Answers given below includes solution and link wherever possible to the relevant topic.

An amplifier is a piece of digital equipment whose function is to enhance the digital current, voltage, and power levels of a signal in digital communication. They are classified into three types single, double, and stager tuned amplifiers. The frequency selection of a tuned amplifier is performed by choosing out from the available frequencies by tuning the amplifiers to various frequencies.

These amplifiers lack in terms of a small product of BW gain. They benefit in terms of high selectivity, small supply voltage, and less power loss. These tuned amplifiers are used in a large variety of applications like in television, radio receiver, wireless communication, RF amplifier, etc.

1). Tuned amplifiers are classified in to _____ types?

Read more about stagger tuned amplifier.

2). A single tuned amplifier contains ___ number of tuner sections?

3). Which of the following are the components involved in single tuned amplifier?

Resistors

Capacitors

Inductors

All the above

Transistor Tuned Amplifiers Important Questions for Interviews

26). Which of the following type of class amplifier a tuned amplifier is operated?

Class A

Class B

Class C

Both a and b

27). Which of the following is the frequency of radio frequency?

12kHz

200kHz

100kHz

50kHz

28). Which of the following is the power factor of a parallel or serial resonance?

29). What is the value of resonance frequency of a voltage gain tuned type amplifier?

Maximum

Minimum

Zero

Constant

30). What is the value of impedance in a serial connection?

Maximum

Minimum

Zero

Constant

31). In a parallel or serial connection resonance the behavior of circuit is ____?

Resistive

Capacitive

Inductive

Both b and c

32). What is the value of inductance voltage compared to capacitance voltage in series resonance?

Equal

Greater

Lesser

Zero

33). What is the value of phase of inductance compared to capacitance in series resonance?

Out

Zero

Equal

34). What happens to resonant frequency in an LC filter when L is increased?

Decreases

Increases

Zero

Constant

35). What happens to resonant frequency in an LC filter when C is increased?

Decreases

Increases

Zero

Constant

36). When BW of LC circuit is increased then the value of Q is ______

Increased

Decreased

Zero

Constant

37). What is the value of circuit current, in a net reactive based component?

Inductive

Capacitive

38). What is the dimension of an L/CR?

Ohms

Henry

Farads

Colum’s

39). What is the value of Q when L/C ration of parallel LC circuit is increased?

Increased

Decreased

Zero

Constant

40). What is phase angle of series resonance?

180

41). Which of the following are the properties of double tuned amplifier?

Primary and secondary type windings inductance is tuned separately

Uses capacitor

Wider bandwidth

All the above

42). A tuned amplifier is an ____ type of amplifier?

Electrical

Electronic

Mechanical

Both a and b

43). A tuned amplifier is used in _____ type of applications?

Wired

Wireless

Bluetooth

Both a and b

44). An electronic amplifier ___ the signals power?

Increases

Decreases

Attenuates

Both a and b

45). The strength of amplifiers signals is varied based on ___ factors?

Voltage

Current

Time

Both a and b

46). An electronic amplifier has ___ number of ports?

47). Which of the following form of energy is given as input to amplifier?

Electrical

Mechanical

Hydraulic

Air

48). Which of the following signal parameter is amplified using tuned amplifier?

Frequency

Amplitude

Phase

All the above

49). Which of the following is the value of amplifiers power gain?

Less than 1

Greater than 1

Equal to 1

50). Which of the following is the formula for amplifiers gain?

Output / Input

Input / Output

Input + Output

Input – Output

Transistor Tuned Amplifiers Questions & Answers for Exams

51). Which of the following are the classification of amplifier?

Frequency

Physical placement

Substance

Both a and b

52). At which frequency do audio amplifier amplify signal?

20Hz

20KHz

10Hz

10KHz

53). A which frequency do RF amplifier amplify signals?

20kHz to 300 GHz

20kHz to 100 GHz

20kHz to 150 GHz

200Hz to 200KHz

54). At which frequency do servo type amplifiers work?

High

Low

Constant

Zero

55). At which frequency do instrumentation type amplifiers work?

High

Low

Constant

Zero

56). Which of the following was the first device to amplify signal?

Triode type vacuum based tube

Varistor

Rheostat

All the above

57). Who invented first triode type vacuum based tube?

Lee De Forest

Richard

Charles

All the above

58). In which year Lee De Forest invented first triode type vacuum based tube?

1906

1907

1908

1909

59). Which of the following component do an amplifier use?

Diodes

Triode

Transistors

All the above

Transistor Tuned Amplifiers Questions & Answers for Exams

76). Which of the following is the output impedance of voltage type amplifier?

0.5

Infinity

77). Which of the following is the advantage provided by amplifiers negative feedback?

Enhance bandwidth

Enhanced gain control

Minimum distortion

All the above

78). A zero feedback circuit obtains ____ percent of distortion in audio frequency?

90%

79). What is the percentage of distortion in audio frequency in a negative feedback circuit?

0.001%

0.2%

0.002%

0.01%

80). Which of the following are the active devices used in an amplifier?

Vacuum tubes

Transistors

Op-amps

All the above

Transistor Tuned Amplifiers Question & Answers

Transistor Tuned Amplifiers Important Questions for Interviews

Transistor Tuned Amplifiers Questions & Answers for Exams

Transistor Tuned Amplifiers Questions & Answers for Exams

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