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- 1. Multiple Choice
Which among the following is a combinational circuit
Flip Flop
Latch
Counter
Encoder
- 2. Multiple Choice
Full Adder can be formed by cascading two half adders
True
False
- 3. Multiple Choice
When performing X-Y in boolean algebra, borrow is generated when X is less than Y
True
False
Cannot be determined
- 4. Multiple Choice
The combinational circuit used for routing the input value to the output line based on the select signal combination
Multiplexer
Demultiplexer
Encoder
Decoder
- 5. Multiple Choice
Which among the following is the BCD representation of the decimal number 12
1100
0001 0010
1101
0001 0011
- 6. Multiple Choice
Which flip flop is used for designing counters
T flip flop
SR flip flop
D flip flop
T latch
- 7. Multiple Choice
A T flip flop can be obtained by shorting the input lines of:
SR Flip Flop
D Flip Flop
JK Flip Flop
RS Latch
- 8. Multiple Choice
In synchronous counters all the flip flops are clocked at the same time
True
False
- 9. Multiple Choice
The output of the D flip flop at a particular instant is the same as the input present at that particular instant
True
False
- 10. Multiple Choice
The excess-3 code of 0010
0101
0011
0100
0110
- 11. Multiple Choice
Which among the following gates is an inequality detector
XOR Gate
XNOR Gate
NAND Gate
NOR Gate
- 12. Multiple Choice
Flip flops are edge triggered and latches are level triggered
True
False
- 13. Multiple Choice
Minterms are:
Sum of Products
Product of Sums
Cannot be determined
- 14. Multiple Choice
Combinational digital circuits are capable of storing atleast one bit of data
True
False
Depends on the design
Cannot be determined
- 15. Multiple Choice
Which among the following is the IC number for XNOR Gate
74266
7400
7486
7408
- 16. Multiple Choice
7432 is a:
Quad two input OR Gate IC
Triple three input OR Gate IC
Dual four input OR Gate IC
- 17. Multiple Choice
Which among these are non-weighted codes
Excess-3 Code
BCD Code
Gray Codes
Binary Codes
- 18. Multiple Choice
Which among these is called a 'unit distance code'?
Gray Code
Excess-3 Code
BCD Code
Alphanumeric Code
- 19. Multiple Choice
Binary code is also called 8421 code
True
False
- 20. Multiple Choice
How many LEDs does a 7 segment display have
7
8
14
1
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