Digital Electronics - Study Mode

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[#91] The addition of the two number (1A8) 16 + (67B) 16 will be:

(A) (889) 16

(B) (832) 16

(C) (823) 16

(D) (723) 16

Correct Answer

(C) (823) 16

[#92] An array multiplier is used to find the product of a 3 bit number with a 4 bit number. How many 4 bits adders are required to perform multiplication?

(A) 1

(B) 2

(C) 3

(D) 4

Correct Answer

(B) 2

[#93] The given circuit operates as a

(A) NAND gate

(B) Flip flop

(C) NOR gate

(D) Comparator

Correct Answer

(B) Flip flop

[#94] The fan out TTL logic gate is about:

(A) 5

(B) 10

(C) 20

(D) 50

Correct Answer

(B) 10

[#95] In the given figure shows a 4 bit serial in parallel out right shift register. The initial contents as shown are 0110. After 3 clock pulses the contents will be

(A) 0000

(B) 0101

(C) 1010

(D) 1111

Correct Answer

(C) 1010