github

Made bySaurav Hathi

ECE - Practice Test - 54

Q1:

Full adder and Delay flip-flop from a serial adder(without effecting its operation) can be replaced by

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q2:

Which of the following can be a frequency divider circuit?

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q3:

The frequency of the pulse at R4 in the network shown below is Hz

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q4:

An eight-bit binary ripple UP counter with a modulus of 256 is holding the count 01111111. What will be the count after 135 clock pulses?

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q5:

The initial state of MOD-16 down counter is 0110. After 37 clock pulses, the state of the counter will be.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
V2_ECE_NewTest1
V2_ECE_NewTest2
+ 1 more
Section:
Digital Circuits
Options:
Q6:

Assertion (A): Asynchronous sequential circuits are difficult to design.

Reason (R): External clock is used for synchronization of asynchronous sequential circuits.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q7:

Which of the following equations satisfies the j K flip-flop truth table?

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Baseline3_3rdYear_EIE
Section:
Digital Circuits
Options:
Q8:

The circuit given below is a

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Baseline2_ECE_3Yr_DSCSDEC
Section:
Digital Circuits
Options:
Q9:

A 4-bit ripple counter and a 4-bit synchronous counter are made using flip-flops having a propagation delay of 10ns each. If the worst case delay in the ripple counter and the synchronous counter be R and S respectively then.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q10:

A master-slave flip-flop has the characteristic that -

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Baseline3_2ndYear_EIE
Section:
Digital Circuits
Options:
Q11:

Which of the following measurements can be done using a counter?

1. Pulse duration

2. Interval between two pulses.

3. Amplitude of the pulse.

4. Rise time of pulse.

Select the correct answer from the codes given below.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q12:

In a sequential circuit, the output at any instant of time depends.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q13:

The character equation of the T flip-flop is given by.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q14:

Consider the following statements regarding registers and latches.

1.Registers are temporary storage devices, whereas latches are not 

2. A latch employs cross-coupled feedback connections.

3. A register stores a binary word, where as a latch does not.

The correct statement is/are.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options:
Q15:

Statement 1: A flip-flop is a bistable multivibrator.

Statement 2: A flip-flop remains in one stable state indefinitely until it is directed by an input signal to switch over to the other stable state.

Tags:
PlaceMe2_DC&MP4
NEAT_DC&MP4
Section:
Digital Circuits
Options: