CS302 Midterm Online Quiz

CS302-Midterm

1 / 50

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

OPCODE Selectors

MicroOperation selectors

Function Select Inputs

None of given option

2 / 50

The OLMC of the GAL16V8 is _______ to the OLMC of the GAL22V10

Different

Depends on the type of PALs input size

Similar with some enhancements

Similar

3 / 50

The binary value of 1010 is converted to the product term

TRUE

FALSE

4 / 50

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

A+B=B+A

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

AB=BA

AB+C = A+BC

5 / 50

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

Demorgan‟s Law

Associative Law

Distributive Law

Commutative Law

6 / 50

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

calculating 1's complement and inverting Most significant bit

adding 1 to 1's complement

subtracting 1 from 1's complement.

adding 1's complement twice

7 / 50

Demultiplexer has

Single input and single outputs.

Multiple inputs and multiple outputs.

Single input and multiple outputs.

Multiple inputs and single output.

8 / 50

Caveman number system is Base _5 number system

9 / 50

A Demultiplexer is not available commercially.

FALSE

TRUE

10 / 50

The Quad Multiplexer has _____ outputs

11 / 50

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

2-bit

8-bit

7-bit

16-bit

12 / 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=0

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

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

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

13 / 50

In the binary number “10011” the weight of the most significant digit is ____

24 (2 raise to power 4)

21 (2 raise to power 1)

23 (2 raise to power 3)

20 (2 raise to power 0)

14 / 50

In ABEL the variable „A‟ is treated separately from variable „a‟

FALSE

TRUE

15 / 50

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

64-bits

32-bits

16-bits

8-bits

16 / 50

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

17 / 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

18 / 50

Sequential circuits have storage elements

TRUE

FALSE

19 / 50

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

CMOS 3.5 series

TTL

Power dissipation of all circuits increases with time.

CMOS 5 Series

20 / 50

A particular Full Adder has

3 inputs and 2 output

2 inputs and 2 output

3 inputs and 3 output

2 inputs and 3 output

21 / 50

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

+8 to -7

-9 to +8

+9 to -8

+7 to -8

22 / 50

The AND Gate performs a logical __________function

Division

Addition

Multiplication

Subtraction

23 / 50

The output of an AND gate is one when _______

Any of the input is zero

Any of the input is one

All of the inputs are one

All the inputs are zero

24 / 50

A BCD to 7-Segment decoder has

4 inputs and 7 outputs

3 inputs and 7 outputs

7 inputs and 4 outputs

7 inputs and 3 outputs

25 / 50

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

26 / 50

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

27 / 50

High level Noise Margins (VNH) of CMOS 5 volt series circuits is _____________

0.9 V

0.5 V

0.3 V

3.3 V

28 / 50

Using multiplexer as parallel to serial converter requires ___________ connected to the multiplexer

A BCD to Decimal decoder

A parallel to serial converter circuit

A 2-to-8 bit decoder

A counter circuit

29 / 50

Which one is true:

Power consumption of TTL is higher than of CMOS

Power consumption of CMOS is higher than of TTL

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

Both TTL and CMOS have same power consumption

30 / 50

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

31 / 50

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

1010

1100

1000

32 / 50

In the Karnaugh map shown above, which of the loops shown represents a legal grouping?

33 / 50

How many data select lines are required for selecting eight inputs?

34 / 50

The main use of the Multiplexer is to

Select data from Single source and to route to single destination

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 multiple sources and to route to multiple destinations

35 / 50

The ABEL notation equivalent to Boolean expression A+B is:

A & B

A # B

A ! B

A $ BL-21

36 / 50

The diagram given below represents __________

Product of sum form

Sum of product form

Associative law

Demorgans law

37 / 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

38 / 50

A SOP expression is equal to 1 ______________

At least one variable in domain of expression is present.

All the variables in domain of expression are present

When one or more product terms in the expression are equal to 0.

When one or more product terms in the expression are equal to 1.

39 / 50

The Quad Multiplexer has _____ outputs

40 / 50

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

41 / 50

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

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

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

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

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

42 / 50

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

1011

1010

1110

10120

43 / 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 ________

44 / 50

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

TTL

Power dissipation of all circuits increases with time.

CMOS 5 Series

CMOS 3.5 series

45 / 50

Following is standard POS expression

FALSE

TRUE

46 / 50

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

47 / 50

The diagram given below represents __________

Product of sum form

Associative law

Demorgans law

Sum of product form

48 / 50

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

-9 to +8

+8 to -7

+9 to -8

+7 to -8

49 / 50

All the ABEL equations must end with ________

“ ; “ (a semicolon)

“ $ “ (a dollar symbol)

“ . “ (a dot)

“ endl “ (keyword “endl”)

50 / 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.

4 to 4.5

4.5 to 5

0 to 3.5

0 to 4.5

Your score is

The average score is 44%