80.

81.

82.

83.

84.

85.

86.

87.

075/23

What is the angle between the pole and stay in overhead lines ?
A) 60° B) 45° C) 10° D) 30°

The output of an AND gate is high when
A) All inputs are high B) All inputs are low
C) Any one of the inputs are high D) Any one of the inputs are low

The decimal number corresponding to binary number 1101101.1011 is
A) 119.5786 B) 111.7856
C) 109.6875 D) 191.8657

Which of the following statement is/are correct about De-Morgan’s theorem ?

i. The complement of a product variable is equal to the sum of the complement of the
variables.

ii. The complement of asum variable is equal to the product of the complement of the
variables.

iii. The complement of two or more variables OR ed is equal to the AND ing of the
complement of the individual variables.

A) Onlyi 8) Only i and ii
C) Only iii D) All of the above (i, ii and iii)

A digital circuit which accepts two input bits, one input carry bit and generates a sum
output bit and a carry bit is known as

A) BCD adder B) Full adder C) Half adder D) None of these

Which of the following flip-flop has invalid states in the output when all inputs are high ?
A) SR Flip-flop B) J K Flip-flop C) D Flip-flop D) Both B) and C)

The maximum voltage that appears across a diode in full wave rectifier during its blocking
state is called

A) Cut in Voltage B) Ripple Voltage
C) Forward Breakdown Voltage D) Peak Inverse Voltage

Which of the following method is/are not used for triggering a Thyristor ?
A) difdt triggering B) light triggering
C) forward voltage triggering D) none of the above

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