CS302 Midterm Online Quiz

CS302-Midterm

1 / 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 ________

2 / 50

All the ABEL equations must end with ________

“ ; “ (a semicolon)

“ $ “ (a dollar symbol)

“ endl “ (keyword “endl”)

“ . “ (a dot)

3 / 50

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

64-bits

16-bits

8-bits

32-bits

4 / 50

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

0.5 V

0.9 V

0.3 V

3.3 V

5 / 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________.

Clear

SET

RESET

Invalid

6 / 50

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

7 / 50

A latch retains the state unless

Output is changed

Power is turned off

Clock pulse is changed

Input is changed

8 / 50

A Demultiplexer is not available commercially.

FALSE

TRUE

9 / 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

10 / 50

GAL is an acronym for ________.

General Array Logic

Giant Array Logic

Generic Array Logic

Generic Analysis Logic

11 / 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=0,A<B=1,A=B=1

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

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

12 / 50

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

Min

Sum

Product

Composite

13 / 50

The Quad Multiplexer has _____ outputs

14 / 50

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

1100

1010

1000

15 / 50

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

AND

XOR

NOT

16 / 50

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

17 / 50

A latch has _____ stable states

Two

One

Four

Three

18 / 50

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

Sign value

Carry

Overflow

Parity

19 / 50

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

Demorgan‟s Law

Commutative Law

Associative Law

Distributive Law

20 / 50

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

NOT

XOR

AND

21 / 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

22 / 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.

4.5 to 5

0 to 3.5

4 to 4.5

0 to 4.5

23 / 50

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

24 / 50

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

64-bits

16-bits

8-bits

32-bits

25 / 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

26 / 50

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

27 / 50

The diagram given below represents __________

Product of sum form

Associative law

Demorgans law

Sum of product form

28 / 50

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

FALSE

TRUE

29 / 50

Demultiplexer has

Multiple inputs and multiple outputs.

Single input and multiple outputs.

Multiple inputs and single output.

Single input and single outputs.

30 / 50

The main use of the Multiplexer is to

Select data from multiple sources and to route to multiple destinations

Select data from Single source and to route to single destination

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

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

31 / 50

The binary value “1010110” is equivalent to decimal __________

32 / 50

"Sum-of-Weights" method is used __________

to encode data

to decode data

to convert from one number system to other

to convert from serial to parralel data

33 / 50

"Sum-of-Weights" method is used __________

to encode data

to decode data

to convert from serial to parralel data

to convert from one number system to other

34 / 50

The binary value of 1010 is converted to the product term

TRUE

FALSE

35 / 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=0,A<B=1,A=B=1

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

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

36 / 50

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

37 / 50

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

TRUE

FALSE

38 / 50

The AND Gate performs a logical __________function

Addition

Subtraction

Multiplication

Division

39 / 50

The binary value “1010110” is equivalent to decimal __________

40 / 50

The Quad Multiplexer has _____ outputs

41 / 50

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

AND, OR

NAND, XOR

NAND, NOR

NOT, XOR

42 / 50

The ABEL symbol for “OR” operation is

43 / 50

A logic circuit with an output consists of ________.

two AND gates, two OR gates, two inverters

two AND gates, one OR gate

two AND gates, one OR gate, two inverters

three AND gates, two OR gates, one inverter

44 / 50

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

FALSE

TRUE

45 / 50

A SOP expression is equal to 1 ______________

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

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

46 / 50

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

47 / 50

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

Power dissipation of all circuits increases with time.

CMOS 5 Series

TTL

CMOS 3.5 series

48 / 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 = 1, A < B = 0, A = B = 0

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

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

49 / 50

The Unsigned Binary representation can only represent positive binary numbers

TRUE

FALSE

50 / 50

Following is standard POS expression

FALSE

TRUE

Your score is

The average score is 44%