CS302 Midterm Online Quiz

CS302-Midterm

1 / 50

Demultiplexer has

Multiple inputs and single output.

Multiple inputs and multiple outputs.

Single input and multiple outputs.

Single input and single outputs.

2 / 50

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

MicroOperation selectors

Function Select Inputs

None of given option

OPCODE Selectors

3 / 50

A latch has _____ stable states

Three

Four

One

Two

4 / 50

"Sum-of-Weights" method is used __________

to convert from one number system to other

to encode data

to convert from serial to parralel data

to decode data

5 / 50

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

0.3 V

0.5 V

3.3 V

0.9 V

6 / 50

The ABEL symbol for “OR” operation is

7 / 50

The binary value “1010110” is equivalent to decimal __________

8 / 50

TTL based devices work with a dc supply of ____ Volts

3.35.

9 / 50

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

1010

1100

1000

10 / 50

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

-9 to +8

+8 to -7

+9 to -8

+7 to -8

11 / 50

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

2-bit

8-bit

16-bit

7-bit

12 / 50

The diagram given below represents __________

Demorgans law

Product of sum form

Associative law

Sum of product form

13 / 50

If an active-HIGH S-R latch has a 0 on the S input and a 1 on the R input and then the R input goes to 0, the latch will be________.

Invalid

SET

Clear

RESET

14 / 50

The GAL22V10 has ____ inputs

15 / 50

A SOP expression having a domain of 3 variables will have a truth table having ____combinations of inputs and corresponding output values.

16 / 50

The ABEL symbol for “XOR” operation is

17 / 50

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

AB+C

B+C

AC+B

A+BC

18 / 50

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

FALSE

TRUE

19 / 50

The Quad Multiplexer has _____ outputs

20 / 50

All the ABEL equations must end with ________

“ . “ (a dot)

“ ; “ (a semicolon)

“ endl “ (keyword “endl”)

“ $ “ (a dollar symbol)

21 / 50

A Demultiplexer is not available commercially.

TRUE

FALSE

22 / 50

The binary value of 1010 is converted to the product term

FALSE

TRUE

23 / 50

The binary value “1010110” is equivalent to decimal __________

24 / 50

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

25 / 50

The Quad Multiplexer has _____ outputs

26 / 50

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

NAND, XOR

NAND, NOR

AND, OR

NOT, XOR

27 / 50

Sequential circuits have storage elements

TRUE

FALSE

28 / 50

A standard POS form has __________ terms that have all the variables in the domain of the expression.

Product

Min

Composite

Sum

29 / 50

GAL is an acronym for ________.

Giant Array Logic

Generic Analysis Logic

Generic Array Logic

General Array Logic

30 / 50

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

subtracting 1 from 1's complement.

calculating 1's complement and inverting Most significant bit

adding 1 to 1's complement

adding 1's complement twice

31 / 50

3-to-8 decoder can be used to implement Standard SOP and POS Boolean expressions

FALSE

TRUE

32 / 50

The binary value “11011” is equivalent to __________

E2.

33 / 50

NOR gate is formed by connecting _________

OR Gate and then NOT Gate

NOT Gate and then OR Gate

AND Gate and then OR Gate

OR Gate and then AND Gate

34 / 50

A particular Full Adder has

3 inputs and 2 output

2 inputs and 2 output

2 inputs and 3 output

3 inputs and 3 output

35 / 50

The Unsigned Binary representation can only represent positive binary numbers

FALSE

TRUE

36 / 50

The GAL22V10 has ____ inputs

37 / 50

Which one is true:

Power consumption of CMOS is higher than of TTL

Both TTL and CMOS have same power consumption

Power consumption of TTL is higher than of CMOS

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

38 / 50

Two 2-bit comparator circuits can be connected to form single 4-bit comparator

FALSE

TRUE

39 / 50

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

1110

10120

1010

1011

40 / 50

The output of an AND gate is one when _______

Any of the input is one

Any of the input is zero

All of the inputs are one

All the inputs are zero

41 / 50

If“1110” is applied at the input of BCD-to-Decimal decoder which output pin will be activated:

No output wire will be activated

2nd

14th

4th

42 / 50

Demultiplexer has

Single input and multiple outputs.

Multiple inputs and single output.

Multiple inputs and multiple outputs.

Single input and single outputs.

43 / 50

A particular Full Adder has

3 inputs and 2 output

2 inputs and 2 output

2 inputs and 3 output

3 inputs and 3 output

44 / 50

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

45 / 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 ________

46 / 50

If an active-HIGH S-R latch has a 0 on the S input and a 1 on the R input and then the R input goes to 0, the latch will be ________.

Invalid

RESET

SET

Clear

47 / 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 = 0

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

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

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

48 / 50

"Sum-of-Weights" method is used __________

to convert from serial to parralel data

to convert from one number system to other

to decode data

to encode data

49 / 50

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

-9 to +8

+8 to -7

+7 to -8

+9 to -8

50 / 50

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

1100

1010

1000

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