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ISRO
ISRO Technician-B
Electronic Mechanic
ISRO Technician-B Electronic Mechanic 2017
24

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

24) How many RC stages are used in the RC phase shift oscillator?

Six

Two

Four

Three

Answer is:

Three

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

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Related ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

25) In an SCR, the latching current is _____ the holding current

lower than

higher than

same as

negative of

Answer is:

higher than

26) Which of the following is decade counter?

7493/IC 7493

7490/IC 7490

7491/IC 7491

7492/IC 7492

Answer is:

7490/IC 7490

27) Assume that a 4-bit serial in /serial out shift register is initially clear. Bits are shifted in from left. We wish to store the nibble 1100. What will be the 4-bit pattern after the second clock pulse? (Right-most bit first)

1100

0011

1111

0000

Answer is:

0000

28) Primary winding of a transformer

is always a low voltage winding

is always a high voltage winding

can be either low voltage winding or high voltage winding

always has higher number of turns compared to secondary winding

Answer is:

can be either low voltage winding or high voltage winding

ISRO Technician-B Electronic Mechanic Question Paper - 2017 (Set - 1) with Answer Key

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