GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 504 - 507 of 1076

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Question 504

Arithmetic Circuits, Code Converters, Multiplexers, Decoders and PLAs

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

A digital multiplexer can be used for which of the following?

1. Parallel-to-serial conversion

2. Many-to-one switch

3. To generate memory chip select

4. for code conversion

Select the correct answer using the code given below:

Choices

Choice (4)Response

a.

1 & 2

b.

1,3 & 4

c.

2,3 & 4

d.

2 & 3

Question 505

Amplitude, Phase and Frequency Shift Keying (ASK, PSK, FSK)

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

If a carrier modulated by a digital bit stream had one of the possible phases of 0,90, 180 and 270 degrees then modulation is called

Choices

Choice (4)Response

a.

QPSK

b.

BPSK

c.

FSK

d.

QAM

Question 506

Function Generators, Wave-Shaping Circuits and 555 Timers

Appeared in Year: 2013 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following List -i with List-ii

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

Schmitt triggers

(i)

Two-stable states

(B)

Bistable multivibrator

(ii)

One-stable state

(C)

Astable multivibrator

(iii)

Square wave generator

(D)

Monostable multivibrator

(iv)

Free running oscillator

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (i)
  • (iv)
  • (iii)
  • (ii)

b.

  • (ii)
  • (i)
  • (iii)
  • (iv)

c.

  • (ii)
  • (iv)
  • (i)
  • (iii)

d.

  • (iii)
  • (i)
  • (iv)
  • (ii)

Question 507

Arithmetic Circuits, Code Converters, Multiplexers, Decoders and PLAs

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

The multiplexer is also known as

Choices

Choice (4)Response

a.

Decoder

b.

Shift register

c.

Data selector

d.

Counter

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