Explore topic-wise MCQs in Digital Circuits.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

If a 10-bit ring counter has an initial state 1101000000, what is the state after the second clock pulse?

A. 1101000000
B. 0011010000
C. 1100000000
D. 0000000000
Answer» C. 1100000000
2.

In a 4-bit Johnson counter sequence, there are a total of how many states or bit patterns?

A. 1
B. 3
C. 4
D. 8
Answer» E.
3.

What type of register would have a complete binary number shifted in one bit at a time and have all the stored bits shifted out one at a time?

A. Parallel-in Parallel-out
B. Parallel-in Serial-out
C. Serial-in Serial-out
D. Serial-in Parallel-out
Answer» D. Serial-in Parallel-out
4.

By adding recirculating lines to a 4-bit parallel-in serial-out shift register, it becomes a ________ ________ and ________ out register.

A. Parallel-in, serial, parallel
B. Serial-in, parallel, serial
C. Series-parallel-in, series, parallel
D. Bidirectional in, parallel, series
Answer» B. Serial-in, parallel, serial
5.

The group of bits 10110111 is serially shifted (right-most bit first) into an 8-bit parallel output shift register with an initial state 11110000. After two clock pulses, the register contains ______________

A. 10111000
B. 10110111
C. 11110000
D. 11111100
Answer» E.
6.

IF_A_10-BIT_RING_COUNTER_HAS_AN_INITIAL_STATE_1101000000,_WHAT_IS_THE_STATE_AFTER_THE_SECOND_CLOCK_PULSE??$

A. 1101000000
B. 0011010000
C. 1100000000
D. 0000000000
Answer» C. 1100000000
7.

How_much_storage_capacity_does_each_stage_in_a_shift_register_represent?$

A. One bit
B. Two bits
C. Four bits
D. Eight bits
Answer» B. Two bits
8.

By adding recirculating lines to a 4-bit parallel-in serial-out shift register, it becomes a ________, ________, and ________out register.

A. Parallel-in, serial, parallel
B. Serial-in, parallel, serial
C. Series-parallel-in, series, parallel
D. Bidirectional in, parallel, series
Answer» B. Serial-in, parallel, serial
9.

The group of bits 10110111 is serially shifted (right-most bit first) into an 8-bit parallel output shift register with an initial state 11110000. After two clock pulses, the register contains

A. 10111000
B. 10110111
C. 11110000
D. 11111100
Answer» E.
10.

In a parallel in/parallel out shift register, D0 = 1, D1 = 1, D2 = 1, and D3 = 0. After three clock pulses, the data outputs are ________

A. 1110
B. 0001
C. 1100
D. 1000
Answer» C. 1100
11.

A bidirectional 4-bit shift register is storing the nibble 1110. Its input is LOW. The nibble 0111 is waiting to be entered on the serial data-input line. After two clock pulses, the shift register is storing ________

A. 1110
B. 0111
C. 1000
D. 1001
Answer» E.