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UPPSC AE Paper-2 Quiz-5

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Question 1

Which of the following statements are true sterling silver ?

1) It is an alloy of silver and aluminum.

2) It is used for making jewelry and fine silverware.

3) It is an example of substitutional solid solution

Question 2

The single phase Induction Motor (IM) which does not have centrifugal switch is

Question 3

Consider the following statements regarding ionic compounds.

1) They have high melting point

2) Good conductor of electricity

3) These are crystalline in nature.

4) These are hard and brittle.

Question 4

The expression for reverse recovery time of a power diode is given by:

Where, = Reverse recovery charge

S = Softness factor

= Rate of change of reverse current

Question 5

The Newton-Raphson’s iteration formula to find the solution of an equation is given by , where R is constant. The function f(x) is

Question 6

Direction of the rotation of the shaded pole motor is

Question 7

The HVDC system uses

Question 8

The correct statements in respect of IGBT are:

1) It has high input impedance.

2) It combines the good qualities of MOSFET and BJT.

3) It has low ON-state power loss.

4) It is unipolar device.

Question 9

In 8085 microprocessor, during PUSH/PSW operation stack pointer is

Question 10

To reduce adverse effect of corona discharge ______conductor is used?
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