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Quiz Counter, FSM 2024

Total questions: 15

Worksheet time: 7mins

Name
Class
Date
1.

A counter with 4 Flip-flops has a maximum modulus of seven

a)

Yes

b)

No

2.

A counter with a count of zero (0000) through nine (1001) is known as

a)

ASCII Counter

b)

Decimal Counter

c)

BCD Counter

3.

An asynchronous counter is also known as a ripple counter

a)

No

b)

Yes

4.

The output changes at the failing edge. The statement shows that, the counter has a ___________

a)

positive edge triggered

b)

negative edge triggered

5.

A decade counter has ______ states.

a)

eight

b)

nine

c)

ten

d)

eleven

6.

The following figure is ______

a)

KMap

b)

Boolean equation

c)

Truth table

d)

State diagram

7.

For to decode a counter, we must use __________ gate.

a)

AND

b)

NAND

c)

OR

d)

NOR

8.

What is the main characteristic of an asynchronous counter?

a)

All flip-flops are clocked together

b)

Triggering occurs at the same time

c)

It has a fixed time relationship

d)

Clock input is connected to the LSB flip-flop

9.

Why NAND gate is used to decode a counter?

a)

to add the value

b)

to reset the value

c)

to subtract the value

d)

to preset the value

10.

Name the states (i) and (ii) in the following timing diagram

a)

(i)initial, (ii)recycle

b)

(i)start, (ii)recycle

c)

(i)initial, (ii)end

d)

(i)start, (ii)end

11.

What is the value for the decode counter?

a)

100

b)

101

c)

110

d)

111

12.

Name the following model

a)

Moore machine model

b)

Mealy machine model

13.

How many steps to design counter?

a)

4 steps

b)

5 steps

c)

6 steps

d)

7 steps

14.

What is excitation equation for JK flip flop

a)

Q(n+) = JQ(n) + KQ(n)

b)

Q(n+) = JQ̅(n) + K̅Q(n)

c)

Q(n+) = JKQ̅(n) + JK̅Q(n)

15.

Which one of the following is an example of a counter with a truncated modulus?

a)

Modulus 4

b)

Modulus 6

c)

Modulus 8