GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 54 - 57 of 1076

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Question 54

Appeared in Year: 2003

Question

MCQ▾

Without any additional circuitry, an 8: 1 MUX can be used to obtain

Choices

Choice (4)Response

a.

Some but not all Boolean functions of 3 variables

b.

All functions of 3 variables but not all of 3 variables

c.

All functions of 3 variables and some but not all of 4 variables

d.

All functions of 4 variables

Question 55

Appeared in Year: 2005

Question

MCQ▾

The transistors used in a portion of the TTL gate show in the figure have b = 100. The base emitter voltage of is 0.7 V for a transistor in active region and 0.75 V for a transistor in saturation. If the sink current I = 1 A and the output is at logic 0, then the current IR will be equal to

Image Showing 2 Transistors Used in a Portion of the TTL Gate

Choices

Choice (4)Response

a.

0.75 mA

b.

1.00 mA

c.

0.70 mA

d.

0.65 mA

Question 56

Sample and Hold Circuits, ADCs and DACs

Appeared in Year: 2001

Question

MCQ▾

In the TTL circuit in the figure, S2 and S0 are select lines and X7 and X0 are input lines. S0 and X0 are LSBs. The output Y is,

8: 1 MULTIPLEXER with a, B, and C Inputs

Choices

Choice (4)Response

a.

b.

c.

d.

Question 57

Appeared in Year: 2012

Question

MCQ▾

In the circuit shown

The Combinational Circuit Consisting of MOSFETs

Choices

Choice (4)Response

a.

b.

c.

d.

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