Blog: CS302 1st Quiz Spring 2013 File 3

Question # 1
Sum term (Max term) is implemented using ________ gates
OR, 
AND, 
NOT, 
OR-AND

Question # 2
Excess-8 code assigns _______ to “-8”
1110, 
1100, 
1000, 
0000

Question # 3
The maximum value, represented by a single hexadecimal digit is _____
E
F
G
H

Question # 4
The values that exceed the specified range can not be correctly represented and are considered as ________

Overflow, 
Carry, 
Parity, 
Sign value

Question # 5
TTL based devices work with a dc supply of ____ Volts
+10, 
+5
+3, 
3.3

Question # 6
Caveman number system is Base ______ number system
2
5
10
16

Question # 7
In Caveman number system the value “2” is represented by symbol ________
"!"
"^"
"&"
">"

Question # 8
If we multiply “723” and “34” by representing them in floating point notation i.e. by first, converting them in floating point representation and then multiplying them, the value of mantissa of result will be ________

24.582, 
2.4582, 
24582, 
0.24582

Question # 9
The output of the expression F=A.B.C will be Logic ________ when A=1, B=0, C=1.

Undefined
One
Zero
No Output as input is invalid.

Question # 10
The Extended ASCII Code (American Standard Code for Information Interchange) is a _____ code
2-bit, 
7bit, 
8bit, 
16bit


Question # 11
Which of the number is not a representative of hexadecimal system
1234
ABCD
1001
DEFH


Question # 12
The decimal “10” will have an octal equivalent ________
9
10
11
12

Question # 13
In 32-bit Single-Precision Floating Point format representation the range of exponent value is from ________ to ________

+127 to -126
+255 to – 254
+128 to -127
+256 to -255


Question # 14
The hexadecimal value “FD” is equivalent to binary value ____________
11011111
11111101
11001110
00010111

Question # 15
The OR Gate performs a Boolean _______ function
Addition
Subtraction
Multiplication
Division

Question # 16
_________ is a single input gate

NOT

The first Least Most digit in decimal number system has
Has position 0 and weight equal to 1
Has position 1 and weight equal to 0
Has position 1 and weight equal to 10
Has position 0 and weight equal to 10

Question # 17
Suppose we want to transmit the data “10001101”, and an “Odd-Parity” bit scheme is used to detect errors, the parity bit added to this data will be ____
“0”,
“1”,
Both “0” and “1” can be used
Parity bit is not needed in this case.


Question # 18
The 4-bit 2’s complement representation of “-7” is _____________

0111, 
1111, 
1001, 
0110

Question # 19
________ is invalid number of cells in a single group formed by the adjacent cells in K-map

2
8
12
16


Question # 20
The decimal “10” will have an octal equivalent ________

9
10
11
12

Question # 21
The cell marked 6 in 4-variable K-Map represent minterm 6 or the maxterm 6 having the following binary value of variables A, B, C and D.
A=1, B=1, C=0, D=0
A=0, B=1, C=1, D=0
A=0, B=0, C=1, D=1 (not confirm)
A=1, B=0, C=0, D=1

Question # 22
The output of an XOR gate is zero (0) when __________ I) All the inputs are zero II) Any of the inputs is zero III) Any of the inputs is one IV) All the inputs are one

I Only
IV Only
I and IV only
II and III only


Question # 23
_________ is the example of Commutative Law for Multiplication
AB=BA
A+B=B+A
AB+C = A+BC
A(B+C) = B(A+C)


Question # 24
The 4-variable K-Map has ________ rows and ___________ columns of cells.
2, 2
2, 4
4, 2
4,4

Question # 25
A standard SOP form has __________ terms that have all the variables in the domain of the expression.

Sum
Product
Max
Composite


Question # 26
Decimal number system is Base ______ number system

10

Question # 27
1011+101 = ______
10000
00001
10011
11001

Question # 28
A standard POS form has __________ terms that have all the variables in the domain of the expression

sum
product
min
composite


Question # 29
A.(B + C) = A.B + A.C is the expression of _________________
Demorgan’s Law
Commutative Law
Distributive Law
Associative Law



Question # 30
NOR Gate can be used to perform the operation of AND, OR and NOT Gate
True
False

Question # 31
A certain number is represented in 15-digit decimal number format as “364538761287354”, the exponent of the number is __________

36
64
35
54


Question # 32
Consider A=1,B=0,C=1. A, B and C represent the input of three bit NAND gate the output of the NAND gate will be _____

0
1
undefine


Question # 33
1011 – 101 = ________
1100
0110
0011
0110

Question # 34
A + B = B + A is __________
Demorgan’s Law
Distributive
Commutative
asssociative


Question # 35
The range of Excess-8 code is from ______ to ______
+7 to -8
+8 to -7
+9 to -8
-9 to +8

Question # 36
Don’t care conditions are marked as ___________ in the output column of the function table
X

Question # 37
The decimal value “20” is equivalent to binary value __________
10011
11001
00101
10100

Question # 38
1011 – 101 = ________

1100
0110
0011
1001

Question # 39
The ANSI/IEEE Standard 754 defines a __________Single-Precision Floating Point format for binary numbers.

8-bit
16-bit
32-bit
64-bit

Question # 40
The Gray code is different from the unsigned binary code because __________
Successive values of Gray code differ by only one bit
Gray Code is positional code
Gray Code does not support negative values
Gray Code ranges from “0” to “9”