In thermal power plants, the pressure in the working fluid cycle is developed by

1.  condenser

2.  super heater

3.  feed water pump

4.  Turbine

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4
Correct Answer :

feed water pump


Explanation :
No Explanation available for this question

For harnessing low variable waterheads, the suitable hydraulic turbine with high percentage of reaction and runner adjustable vanes is

1.  Kaplan

2.  Francis

3.  Pelton

4.  Impeller

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4
Correct Answer :

Kaplan


Explanation :
No Explanation available for this question

The transmission line distance protection relay hav­ing the property of being inherently directional is

1.  impedance relay

2.  MHO relay

3.  OHM relay

4.  reactance relay

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4
Correct Answer :

MHO relay


Explanation :
No Explanation available for this question

The current through the Zener diode in Figure is

1.  33 mA

2.  3.3 mA

3.  2 mA

4.  0 mA

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4
Correct Answer :

2 mA


Explanation :
No Explanation available for this question

Two perfectly matched silicon transistors are connected as shown in Figure.The value of the current I is

1.  0 mA

2.  2.3 mA

3.  4.3 mA

4.  7.3 mA

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4
Correct Answer :

4.3 mA


Explanation :
No Explanation available for this question

The feedback used in the circuit shown in Figure, can be classified as

1.  shunt-series feedback

2.  shunt-shunt feedback

3.  series-shunt feedback

4.  series-series feedback

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4
Correct Answer :

shunt-shunt feedback


Explanation :
No Explanation available for this question

The digital circuit using two inverters shown in Figure will act as

1.  a bistable multi-vibrator

2.  an astable multi-vibrator

3.  a monostable multi-vibrator

4.  an oscillator

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4
Correct Answer :

a bistable multi-vibrator


Explanation :
No Explanation available for this question

The voltage comparator shown in Figure, can be used in the analog-to-digital conversion as

1.  a 1-bit quantizer

2.  a 2-bit quantizer

3.  a 4-bit quantizer

4.  a 8-bit quantizer

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4
Correct Answer :

a 2-bit quantizer


Explanation :
No Explanation available for this question

The Nyquist plot of loop transfer function G(s) H(s) of a closed loop control system passes through the point (- 1, j0) in the G(s) H(s) plane. The phase margin of the system is

1.  0°

2.  45°

3.  90°

4.  180°

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4
Correct Answer :

0°


Explanation :
No Explanation available for this question

Consider the function, F(s) = 5/(s(s2 + 3s + 2)) where F(s) is the Laplace transform of the function f(t). The initial value of f(t) is equal to

1.  5

2.  5/2

3.  5/3

4.  0

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4
Correct Answer :

0


Explanation :
No Explanation available for this question
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