Double tuned circuits are used in ___________ stages of a radio receiver

In the double tuned circuit, if the mutual inductance between the two tuned circuits is decreased, the level of resonance curve ___________

A

Remains the same

B

Is lowered

C

Is raised

D

None of the above

In a TRF radio receiver, the RF and detection stages are tuned to ___________

A

Radio frequency

B

IF

C

Audio frequency

D

None of the above

The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is ___________

A

455 kHz

B

1310 kHz

C

1500 kHz

D

1520 kHz

An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

A

102.3

B

113

C

70.2

D

80.9

Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statement : Of all the radio sets manufactured in India, the 'X' brand has the largest sale.

Assumptions :
I. The sale of all the radio sets manufactured in India is known.
II. The manufacturing of no other radio set in India is as large as 'X' brand radio.

A

Only assumption I is implicit

B

Only assumption II is implicit

C

Either I or II is implicit

D

Neither I nor II is implicit

E

Both I and II are implicit

A receiver is operated at a temperature of 300 K. The transistor used in the receiver have an average output resistance of 1 k. The Johnson noise voltage for a receiver with a bandwidth of 200 kHz is

A

1.8 µV

B

8.4 µV

C

4.3 µV

D

12.6 µV

Referring this circuit, determine the maximum output voltage when a single pulse is applied as shown. The total resistance is 60 Ω.
Time Response of Reactive Circuits mcq question image

Time Response of Reactive Circuits mcq question image

A

2.73 V

B

27.33 V

C

30 V

D

2.67 V

Referring to the bellow figure, determine the voltage level that the output will reach during the pulse.
Time Response of Reactive Circuits mcq question image

A

0 V

B

15 V

C

6.3 V

D

9.45 V

Referring to the give circuit, the output will.
Time Response of Reactive Circuits mcq question image

A

Decay to zero at the end of the pulse

B

Reach 6 V at the end of the pulse

C

Reach 3.78 V at the end of the pulse

D

Reach 5.16 V at the end of the pulse

Referring this figure, on the falling edge.
Time Response of Reactive Circuits mcq question image

A

The resistor voltage drops to -5 V and then goes back to zero exponentially

B

The resistor voltage jumps to -5 V and then goes back to zero exponentially

C

The capacitor voltage remains constant

D

The resistor voltage jumps to +5 V and then decreases exponentially to zero

Double tuned circuits are used in ___________ stages of a radio receiver

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