Test your knowledge of digital electronics, including number systems, gates, combinational circuits, sequential circuits, Boolean Algebra, etc, with our online multiple choice questions. Get instant feedback and track your progress as you go. Twenty (20) MCQ questions from our test bank will be randomly shown for every attempt. Passing mark for this test is 70%.

Objectives: To provide a comprehensive overview of digital electronics and to test readers’ knowledge of the subject with multiple choice questions.

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Logic performed by semiconductor diodes and small ferrite toroidal cores for moderate speed and moderate power level is

4Layer Device Logic

Tunnel Diode Logic

Core diode logic

Neon logic

Which of these flip – flops cannot be used to construct a serial shift register? a) D – flip flop

SR flip – flop

JK flip – flop

D – flip flop

T flip – flop

The maximum number of inputs (load) that can be connected to the out- put of a gate without degrading the normal operation is

Fan-high

Fan-in

Fan-out

The given hexadecimal number (1E.53)16 is equivalent to ____________

(35.599)8

(36.246)8

(35.684)8

(34.340)8

A method for organizing and manipulating a data buffer, where the oldest (first) entry, or 'head of the queue, is processed first is termed as

first-in first-out logic

last-in last-out logic

The decimal equivalent of the binary number (1011.011)2 is _______

(11.175)10

(11.375)10

(9.23)10

(10.123)10

Positive logic in a logic circuit is one in which

logic 0 voltage level is higher than logic 1 voltage level

logic 0 and 1 are represented by 0 and positive voltage respectively

logic 0 and, -1 are represented by negative and positive voltages respectively

logic 0 voltage level is lower than logic 1 voltage level.

Which of the following gate is a two-level logic gate

OR gate

EXCLUSIVE OR gate

NOT gate.

NAND gate

Table which can perform the same functions as machines based on logic gates and can be easily reprogrammed without changing the wiring is called

logic table

lookdown table

Boolean table

lookup table

Circuits that manipulate analog signals for its particular operation is termed as

Analog electronics

Digital electronics

DC electronics

Which characteristic of IC in Digital Circuits represents a function of the switching time of a particular transistor?

Propagation delay

Fan – out

Fan – in

Power dissipation

Switch debouncer is a

combinational system

asynchronous system

analog system

synchronous system

How many cycles of addition and shifting in a 4 – bit multiplier are required to perform multiplication using the shift method?

A digital circuit in which the changes in the state of memory elements are synchronized by a clock signal is termed as

clock circuit

asynchronous circuit

synchronous circuit

state circuit

Digital computers are more widely used as compared to analog computers, because they are

easier to maintain

less expensive

useful over wider ranges of problem types

always more accurate and faster

Which of the following digital logic circuits can be used to add more than 1 – bit simultaneously?

Full – adder

Ripple – carry adder

Serial adder

Half – adder

The simplest family of logic gates using bipolar transistors is called

RTL

DTL

TTL

A method where the youngest entry or 'top of the stack is processed first is termed as

last-in last-out logic

last-in first-out logic

first-in last-out logic

first-in first-out logic

An idealized or physical device implementing a Boolean function, it performs a logical operation on one or more binary inputs and produces a single binary output is termed as

NOT gate

Logic gate

Power transistor

Antenna

What value is to be considered for a “don’t care condition”?

either 0 or 1

Neither 0 or 1

Time is Up!

Time’s up