1) Which among the following is an octal to binary priority encoder?
a. 74147
b. 74148
c. 74149
d. 74150
|
Answer
Explanation
|
ANSWER: 74148
Explanation:
No explanation is available for this question!
|
|
2) Which type of combinational logic circuit is shown below?
a. Multiplexer
b. Demultiplexer
c. Encoder
d. Comparator
|
Answer
Explanation
|
ANSWER: Multiplexer
Explanation:
No explanation is available for this question!
|
|
3) How many arithmetic operations can be performed by Arithmetic Logic Unit?
a. 10
b. 12
c. 16
d. 32
|
Answer
Explanation
|
ANSWER: 16
Explanation:
No explanation is available for this question!
|
|
4) According to the truth-table given below, the output case for one-bit comparator is __________
a. A < B
b. A > B
c. A = B
d. None of the above
|
Answer
Explanation
|
ANSWER: A < B
Explanation:
No explanation is available for this question!
|
|
5) Which number/ code is added to an incorrect result obtained in BCD addition for correction purpose?
a. One (0001)
b. Three (0011)
c. Six (0110)
d. Nine (1001)
|
Answer
Explanation
|
ANSWER: Six (0110)
Explanation:
No explanation is available for this question!
|
|
6) Which parameters are generated by the ripple carry propagation in the addition process of parallel adder?
A. Propagation delay
B. Time delay
C. Carry delay
D. Speed delay
a. A & B
b. B & C
c. A & C
d. C & D
|
Answer
Explanation
|
ANSWER: A & B
Explanation:
No explanation is available for this question!
|
|
7) Which adder plays a crucial role in eliminating the problem associated with the inter-stage carry delay?
a. Half adder
b. full adder
c. BCD adder
d. Look-ahead carry adder
|
Answer
Explanation
|
ANSWER: Look-ahead carry adder
Explanation:
No explanation is available for this question!
|
|
8) What should be the output of converter, if a common anode display segment is to be turned 'ON'?
a. '0'
b. '1'
c. Both a and b
d. None of the above
|
Answer
Explanation
|
ANSWER: '0'
Explanation:
No explanation is available for this question!
|
|
9) Which is an incorrect rule of binary subtraction from the following?
a. 0 – 0 = 0
b. 0 – 1 = -1
c. 1 – 0 = 1
d. 0 – 1 = 1 with borrow '1'
|
Answer
Explanation
|
ANSWER: 0 – 1 = -1
Explanation:
No explanation is available for this question!
|
|
10) In the half subtractor combinational circuit, what does 'A' represent in the subtraction operation (A - B)?
a. Minuend bit
b. Maxend bit
c. Subtrahend bit
d. Suptrahend bit
|
Answer
Explanation
|
ANSWER: Minuend bit
Explanation:
No explanation is available for this question!
|
|
