Explore topic-wise MCQs in Vlsi.

This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.

1.

Fast gate can be built by keeping ________

A. low output capacitance
B. high on resistance
C. high output capacitance
D. input capacitance does not affect speed of the gate
Answer» B. high on resistance
Discussion
2.

Increasing fan-out ____________ the propagation delay.

A. increases
B. decreases
C. does not affect
D. exponentially decreases
Answer» B. decreases
Discussion
3.

What is the input resistance of CMOS inverter?

A. high
B. low
C. very low
D. none of the mentioned
Answer» B. low
Discussion
4.

CMOS inverter has ______ output impedance.

A. low
B. high
C. very high
D. none of the mentioned
Answer» B. high
Discussion
5.

In CMOS inverter, transistor is a switch having ________

A. infinite on resistance
B. finite off resistance
C. buffer
D. infinite off resistance
Answer» C. buffer
Discussion
6.

Mobility depends on ________

A. Transverse electric field
B. Vg
C. Vdd
D. Channel length
Answer» B. Vg
Discussion
7.

If βn = βp, then Vin is equal to ________

A. Vdd
B. Vss
C. 2Vdd
D. 0.5Vdd
Answer» E.
Discussion
8.

If both the transistors are in saturation, then they act as ________

A. current source
B. voltage source
C. divider
D. buffer
Answer» B. voltage source
Discussion
9.

In the region where inverter exhibits gain, the two transistors are in _______ region.

A. linear
B. cut-off
C. non saturation
D. saturation
Answer» E.
Discussion
10.

If p-transistor is conducting and has small voltage between source and drain, then it is said to work in ________

A. linear region
B. saturation region
C. non saturation resistive region
D. cut-off region
Answer» D. cut-off region
Discussion
11.

If n-transistor conducts and has large voltage between source and drain, then it is said to be in _____ region.

A. linear
B. saturation
C. non saturation
D. cut-off
Answer» C. non saturation
Discussion
12.

CMOS inverter has ______ regions of operation.

A. three
B. four
C. two
D. five
Answer» E.
Discussion
13.

INPUT_RESISTANCE_OF_CMOS_INVERTER_IS?$

A. high
B. low
Answer» B. low
Discussion
14.

Fast gate can be built by keeping$

A. low output capacitance
B. high on resistance
C. high output capacitance
D. input capacitance does not affect speed of the gate
Answer» B. high on resistance
Discussion
15.

Increasing fan-out, ______ the propogation delay$

A. increases
B. decreases
C. does not affect
D. exponentially decreases
Answer» B. decreases
Discussion
16.

CMOS inverter has ______ output impedanc?

A. low
B. high
Answer» B. high
Discussion
17.

In CMOS inverter, transistor is a switch having

A. infinite on resistance
B. finite off resistance
C. buffer
D. infinite off resistance
Answer» C. buffer
Discussion
18.

If βn = βp, then Vin is equal to$

A. Vdd
B. Vss
C. 2Vdd
D. 0.5Vdd
Answer» E.
Discussion
19.

If both the transistors are in saturation, then they act as

A. current source
B. voltage source
C. divider
D. buffer
Answer» B. voltage source
Discussion
20.

In the region where inverter exhibits gain, the two transistors are in _______ region

A. linear
B. cut-off
C. non saturation
D. saturation
Answer» E.
Discussion
21.

If p-transistor is conducting and has small voltage between source and drain, then the it is said to work in

A. linear region
B. saturation region
C. non saturation resistive region
D. cut-off region
Answer» D. cut-off region
Discussion
22.

If n-transistor conducts and has large voltage between source and drain, then it is said to be in _____ region

A. linear
B. saturation
C. non saturation
D. cut-off
Answer» C. non saturation
Discussion
23.

CMOS inverter has ______ regions of operation

A. three
B. four
C. two
D. five
Answer» E.
Discussion