Match the following: List I List II A. BJT 1. B. SCR 2. C. UJT 3. D. PUT 4. A-1,

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Question
Match the following:

List I List II

A. BJT 1.

B. SCR 2.

C. UJT 3.

D. PUT 4.
Options
A. A-1, B-2, C-3, D-4
B. A-2, B-3, C-1, D-4
C. A-1, B-3, C-4, D-2
D. A-4, B-2, C-1, D-3

Correct Answer

A-1, B-3, C-4, D-2

More questions

1. A single phase series converter is used for
Options
A. high voltage output
B. high current output
C. high voltage and high current output
D. improving the circuit efficiency

2. Consider the following statements
1. The amplitude of an FM wave is constant
2. FM is more immune to noise than AM
3. FM broadcasts operate in upper VHF and UHF frequency ranges
4. FM transmitting and receiving equipments are simpler as compared to AM transmitting and receiving equipments
Which of the above are correct?
Options
A. 1, 2, 3, 4
B. 1, 2, 3
C. 2, 3, 4
D. 1, 3, 4

4. In a CE amplifier the input impedance is equal to the ratio of
Options
A. ac base voltage to ac base current
B. ac base voltage to ac emitter current
C. ac emitter voltage to ac collector current
D. ac collector voltage to ac collector current

6. A 3 phase induction motor is controlled by voltage and frequency control such that the ratio V/f is constant. At 50 Hz, the speed is 1440 rpm. At 25 Hz, the speed is likely to be
Options
A. about 1350 rpm
B. about 720 rpm
C. about 360 rpm
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7. To protect an SCR against high di/dt we connect
Options
A. a capacitance in series with SCR
B. a capacitance in parallel with SCR
C. an inductance in parallel with SCR
D. an inductance in series with SCR

9. Assertion (A): A transistor has lower voltage drop during conduction as compared to thyristor
Reason (R): Transistors are manufactured in very high voltage and current ratings.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

10. Assertion (A): Gate triggering is the most commonly used method for triggering of an SCR.
Reason (R): Even a small gate current is sufficient to turn on an SCR.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

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