1000+ Digital Electronics Objective Questions and Answers Pdf - 2

Question: 6

A device which converts BCD to Seven Segment is called

(A) encoder

(B) multiplexer

(C) demultiplexer

(D) decoder

Question: 7

An AND gate

(A) is equivalent to a parallel switching circuit

(B) implements logic addition

(C) is equivalent to a series switching circuit

(D) give high output only when all inputs are low

Question: 8

Which of the following statement is not correct in regard to the “Gray code”?

(A) It is a unit distance code

(B) It is a reflective code

(C) It is a BCD code

(D) It is a cyclic code

Question: 9

The devices commonly used for making digital circuits are

(A) semiconductors devices

(B) contact switches

(C) relays

(D) mechanical switches

Question: 10

Which of the following is the fastest logic?

(A) LSI

(B) TTL

(C) ECL

(D) CMOS