Tamil Nadu Municipal Administration Water Supply Question Paper Pdf - 1

Question: 1

Which one of the following can be used as parallel to series converter?

(A) Multiplexer

(B) Demultiplexer

(C) Digital counter

(D) Decoder

Question: 2

Three Boolean operators are

(A) NOT, NAND, NOT

(B) NOR, OR, NOT

(C) NOT, NAND, OR

(D) NOT, OR, AND

Question: 3

An XOR gate produces output only when two inputs are

(A) Equal

(B) High

(C) Low

(D) Different

Question: 4

A full adder can be made out of

(A) Two half adders and a NOT gate

(B) Two half adders and an OR gate

(C) Two half adders and an AND gate

(D) Two half adders

Question: 5

Karnaugh map is used to

(A) Design gates

(B) Minimise the number of gates and fan-in of a digital circuit

(C) Minimise the number of gates only in a digital circuit

(D) Minimise the number of flip-flops in a digital circuit