CS302 Midterm Online Quiz

CS302-Midterm

1 / 50

Half-Adder Logic circuit contains 2 XOR Gates

FALSE

TRUE

2 / 50

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

+9 to -8

+7 to -8

-9 to +8

+8 to -7

3 / 50

An important application of AND Gate is its use in counter circuit

FALSE

TRUE

4 / 50

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

5 / 50

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

6 / 50

The output of an AND gate is one when _______

Any of the input is zero

All the inputs are zero

Any of the input is one

All of the inputs are one

7 / 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

8 / 50

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

TRUE

FALSE

9 / 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.

FALSE

TRUE

10 / 50

"Sum-of-Weights" method is used __________

to encode data

to convert from serial to parralel data

to decode data

to convert from one number system to other

11 / 50

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

12 / 50

A Demultiplexer is not available commercially.

TRUE

FALSE

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

A particular Full Adder has

3 inputs and 3 output

2 inputs and 2 output

3 inputs and 2 output

2 inputs and 3 output

15 / 50

"Sum-of-Weights" method is used __________

to convert from one number system to other

to decode data

to convert from serial to parralel data

to encode data

16 / 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=1,A<B=0,A<B=1

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

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

17 / 50

Which one is true:

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

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

18 / 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 ________

19 / 50

NOR gate is formed by connecting _________

OR Gate and then NOT Gate

AND Gate and then OR Gate

NOT Gate and then OR Gate

OR Gate and then AND Gate

20 / 50

The OR Gate performs a Boolean _______ function

Addition

Division

Multiplication

Subtraction

21 / 50

The binary value “1010110” is equivalent to decimal __________

22 / 50

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

23 / 50

The PROMconsists of a fixed non-programmable ____________ Gate array configured as a decoder.

NOT

XOR

AND

24 / 50

The Quad Multiplexer has _____ outputs

25 / 50

The ABEL symbol for “XOR” operation is

26 / 50

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

Composite

Product

Sum

Min

27 / 50

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

+8 to -7

-9 to +8

+9 to -8

+7 to -8

28 / 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=0,A<B=1,A=B=0

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

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

29 / 50

The Quad Multiplexer has _____ outputs

30 / 50

31 / 50

A SOP expression is equal to 1 ______________

At least one variable in domain of expression is present.

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

All the variables in domain of expression are present

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

32 / 50

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

FALSE

TRUE

33 / 50

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

TRUE

FALSE

34 / 50

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

35 / 50

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

36 / 50

The 4-bit 2‟s complement representation of “-7” is _____________

1111

111

1001

110

37 / 50

Two 2-input, 4-bit multiplexers 74X157 can be connected to implement a ____ multiplexer.

4-input, 16-bit

2-input, 4-bit

4-input, 8-bit

2-input, 8-bit

38 / 50

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

A ! B

A & B

A $ BL-21

A # B

39 / 50

The binary value of 1010 is converted to the product term

FALSE

TRUE

40 / 50

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

Associative Law

Distributive Law

Demorgan‟s Law

Commutative Law

41 / 50

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

adding 1's complement twice

subtracting 1 from 1's complement.

adding 1 to 1's complement

calculating 1's complement and inverting Most significant bit

42 / 50

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

Power dissipation of all circuits increases with time.

CMOS 5 Series

CMOS 3.5 series

TTL

43 / 50

The Quad Multiplexer has _____ outputs

44 / 50

The GAL22V10 has ____ inputs

45 / 50

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

46 / 50

The binary value “11011” is equivalent to __________

E2.

47 / 50

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

NOT, XOR

NAND, NOR

AND, OR

NAND, XOR

48 / 50

The GAL22V10 has ____ inputs

49 / 50

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

2nd

4th

No output wire will be activated

14th

50 / 50

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

Different

Similar with some enhancements

Depends on the type of PALs input size

Similar

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