CS302 Midterm Online Quiz

CS302-Midterm

1 / 50

Generally, the Power dissipation of devices remains constant throughout their operation.

CMOS 3.5 series

TTL

CMOS 5 Series

Power dissipation of all circuits increases with time.

2 / 50

The range of Excess-8 code is from ______ to ______

+8 to -7

+9 to -8

+7 to -8

-9 to +8

3 / 50

Which one is true:

Power consumption of CMOS is higher than of TTL

Power consumption of both CMOS and TTL depends on no. of gates in the circuit

Power consumption of TTL is higher than of CMOS

Both TTL and CMOS have same power consumption

4 / 50

An S-R latch can be implemented by using _________ gates

NAND, NOR

AND, OR

NAND, XOR

NOT, XOR

5 / 50

The values that exceed the specified range can not be correctly represented and are considered as ________

Carry

Parity

Sign value

Overflow

6 / 50

The GAL22V10 has ____ inputs

7 / 50

Generally, the Power dissipation of _______ devices remains constant throughout their operation.

CMOS 5 Series

CMOS 3.5 series

TTL

Power dissipation of all circuits increases with time.

8 / 50

Demultiplexer has

Multiple inputs and single output.

Multiple inputs and multiple outputs.

Single input and single outputs.

Single input and multiple outputs.

9 / 50

A.(B+ C) = A.B + A.C is the expression of

Commutative Law

Associative Law

Demorgan‟s Law

Distributive Law

10 / 50

The AND Gate performs a logical __________function

Division

Subtraction

Addition

Multiplication

11 / 50

The _______ Encoder is used as a keypad encoder.

2-to-8 encoder

Decimal-to-BCD Priority

4-to-16 encoder

BCD-to-Decimal

12 / 50

The function to be performed by the processor is selected by set of inputs known as ________

Function Select Inputs

MicroOperation selectors

OPCODE Selectors

13 / 50

Tri-State Buffer is basically a/an _________ gate.

XOR

NOT

AND

14 / 50

The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator. What are the output levels?

A>B=1,A<B=0,A<B=1

A>B=0,A<B=1,A=B=0

A>B=0,A<B=1,A=B=1

A > B = 1, A < B = 0, A = B = 0

15 / 50

The ecimal “8” is represented as using Gray-Code.

1000

1100

1010

16 / 50

The output of an AND gate is one when _______

All of the inputs are one

All the inputs are zero

Any of the input is one

Any of the input is zero

17 / 50

The expression _________ is an example of Commutative Law for Multiplication.

A(B+C) = B(A+C)

AB+C = A+BC

AB=BA

A+B=B+A

18 / 50

The 4-bit 2’s complement representation of “+5” is _____________

1110

10120

1010

1011

19 / 50

The ABEL symbol for “XOR” operation is

20 / 50

The output A < B is set to 1 when the input combinations is __________

A=10, B=01

A=01, B=01

A=11, B=01

A=01, B=10

21 / 50

The GAL22V10 has ____ inputs

22 / 50

The binary value of 1010 is converted to the product term

FALSE

TRUE

23 / 50

The main use of the Multiplexer is to

Select data from Single source and to route it to a multiple Destinations

Select data from multiple sources and to route it to a single Destination

Select data from Single source and to route to single destination

Select data from multiple sources and to route to multiple destinations

24 / 50

The binary value “1010110” is equivalent to decimal __________

25 / 50

Circuits having a bubble at their outputs are considered to have an active-low output.

TRUE

FALSE

26 / 50

The output of the expression F=A+B+C will be Logic ________ when A=0, B=1, C=1. the symbol‟+‟ hererepresents OR Gate.

One

10 (binary)

Undefined

Zero

27 / 50

A particular Full Adder has

2 inputs and 2 output

3 inputs and 2 output

3 inputs and 3 output

2 inputs and 3 output

28 / 50

A particular Full Adder has

2 inputs and 3 output

3 inputs and 3 output

2 inputs and 2 output

3 inputs and 2 output

29 / 50

2's complement of any binary number can be calculated by

adding 1's complement twice

adding 1 to 1's complement

subtracting 1 from 1's complement.

calculating 1's complement and inverting Most significant bit

30 / 50

The 3-variable Karnaugh Map (K-Map) has _______ cells for min or max terms

31 / 50

If we add “723” and “134” by representing them in floating point notation i.e. by first, converting them in floating point representation and then adding them, the value of exponent of result will be ________

32 / 50

The binary numbers A = 1100 and B = 1001 are applied to the inputs of a comparator. What are the output levels?

A>B=0,A<B=1,A=B=1

A>B=1,A<B=0,A<B=1

A>B=0,A<B=1,A=B=0

A > B = 1, A < B = 0, A = B = 0

33 / 50

(A+B).(A+C) =

B+C

AC+B

AB+C

A+BC

34 / 50

Demultiplexer has

Multiple inputs and multiple outputs.

Single input and multiple outputs.

Multiple inputs and single output.

Single input and single outputs.

35 / 50

The Extended ASCII Code (American Standard Code for Information Interchange) is a _____ code

7-bit

16-bit

2-bit

8-bit

36 / 50

A.(B.C) = (A.B).C is an expression of __________

Commutative Law

Distributive Law

Demorgan‟s Law

Associative Law

37 / 50

The binary value “1010110” is equivalent to decimal __________

38 / 50

The 4-variable Karnaugh Map (K-Map) has ______cells for min or max terms

39 / 50

3.3 v CMOS series is characterized by __________ and _________as compared to the 5 v CMOS series.

Low switching speeds, high power dissipation

Fast switching speeds, high power dissipation

Fast switching speeds, very low power dissipation

Low switching speeds, very low power dissipation

40 / 50

Caveman number system is Base _5 number system

41 / 50

The maximum number that can be represented using unsigned octal system is _______

42 / 50

Following is standard POS expression

FALSE

TRUE

43 / 50

Consider a circuit consisting of two consecutive NOT gates, the entire circuit belongs to a CMOS 5 Volt series, if certain voltage is applied on the input, the output voltage of Logic high signal (VoH) will be in the range of _______ volts.

0 to 4.5

0 to 3.5

4 to 4.5

4.5 to 5

44 / 50

The binary value “11011” is equivalent to __________

E2.

45 / 50

A BCD to 7-Segment decoder has

3 inputs and 7 outputs

7 inputs and 4 outputs

7 inputs and 3 outputs

4 inputs and 7 outputs

46 / 50

In ANSI/IEEE Standard 754 “Mantissa” is represented by 32-bits bits

64-bits

8-bits

16-bits

32-bits

47 / 50

The Unsigned Binary representation can only represent positive binary numbers

TRUE

FALSE

48 / 50

For a 3-to-8 decoder how many 2-to-4 decoders will be required?

49 / 50

A Karnaugh map is similar to a truth table because it presents all the possible values of inputvariables and the resulting output of each value.

TRUE

FALSE

50 / 50

NOR Gate can be used to perform the operation of AND, OR and NOT Gate

TRUE

FALSE

Your score is

The average score is 44%