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

The binary value “1010110” is equivalent to decimal __________

3 / 50

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

+9 to -8

+7 to -8

-9 to +8

+8 to -7

4 / 50

A Demultiplexer is not available commercially.

FALSE

TRUE

5 / 50

The Quad Multiplexer has _____ outputs

6 / 50

The Quad Multiplexer has _____ outputs

7 / 50

Which one is true:

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

Both TTL and CMOS have same power consumption

Power consumption of TTL is higher than of CMOS

Power consumption of CMOS is higher than of TTL

8 / 50

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

9 / 50

The binary value “1010110” is equivalent to decimal __________

10 / 50

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

20 (2 raise to power 0)

21 (2 raise to power 1)

24 (2 raise to power 4)

23 (2 raise to power 3)

11 / 50

GALcan be reprogrammed because instead of fuses __________logic is used in it

CMOS+

E2CMOS

TTL

None of the given options

12 / 50

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

2-bit

16-bit

8-bit

7-bit

13 / 50

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

14 / 50

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

Distributive Law

Demorgan‟s Law

Associative Law

Commutative Law

15 / 50

A particular Full Adder has

3 inputs and 2 output

3 inputs and 3 output

2 inputs and 3 output

2 inputs and 2 output

16 / 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

RESET

SET

Invalid

17 / 50

The Unsigned Binary representation can only represent positive binary numbers

TRUE

FALSE

18 / 50

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

19 / 50

The binary value of 1010 is converted to the product term

TRUE

FALSE

20 / 50

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

Depends on the type of PALs input size

Similar with some enhancements

Similar

Different

21 / 50

The binary value of 1010 is converted to the product term

TRUE

FALSE

22 / 50

The _______ Encoder is used as a keypad encoder.

BCD-to-Decimal

Decimal-to-BCD Priority

2-to-8 encoder

4-to-16 encoder

23 / 50

TTL based devices work with a dc supply of ____ Volts

3.35.

24 / 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________.

RESET

SET

Invalid

Clear

25 / 50

The AND Gate performs a logical __________function

Division

Subtraction

Addition

Multiplication

26 / 50

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

-9 to +8

+9 to -8

+7 to -8

+8 to -7

27 / 50

A logic circuit with an output consists of ________.

three AND gates, two OR gates, one inverter

two AND gates, two OR gates, two inverters

two AND gates, one OR gate

two AND gates, one OR gate, two inverters

28 / 50

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

NAND, NOR

NAND, XOR

AND, OR

NOT, XOR

29 / 50

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

30 / 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

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

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

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

31 / 50

The binary value “1010110” is equivalent to decimal __________

32 / 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 to 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

33 / 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=1

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

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

34 / 50

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

Demorgan‟s Law

Associative Law

Distributive Law

Commutative Law

35 / 50

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

36 / 50

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

NOT

XOR

AND

37 / 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

RESET

Invalid

SET

38 / 50

The Quad Multiplexer has _____ outputs

39 / 50

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

XOR

NOT

AND

40 / 50

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

64-bits

8-bits

16-bits

32-bits

41 / 50

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

110

1001

111

1111

42 / 50

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

FALSE

TRUE

43 / 50

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

FALSE

TRUE

44 / 50

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

45 / 50

A particular Full Adder has

2 inputs and 3 output

3 inputs and 3 output

3 inputs and 2 output

2 inputs and 2 output

46 / 50

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

FALSE

TRUE

47 / 50

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

Low switching speeds, very low power dissipation

Fast switching speeds, high power dissipation

Fast switching speeds, very low power dissipation

Low switching speeds, high power dissipation

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=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

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

49 / 50

All the ABEL equations must end with ________

“ endl “ (keyword “endl”)

“ . “ (a dot)

“ ; “ (a semicolon)

“ $ “ (a dollar symbol)

50 / 50

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

Your score is

The average score is 44%