1. : Select the number that a shift register has in the Integrated Circuit.
(A) 74124
(B) 74123
(C) 74195
(D) 74154
2. : The 16×4 RAM shows that each memory location is of
(A) 2 bits
(B) 8 bits
(C) 4 bits
(D) 16 bits
3. : A 3×8 decoder will have
(A) 4 inputs
(B) 3 inputs
(C) 5 inputs
(D) 6 inputs
4. : Adding 1001 and 0010 produces the output
(A) 0
(B) 1111
(C) 1011
(D) 1010
5. : To shift the data from the right side in the shift register, SH/LD pin must be equal to
(A) 0
(B) 2
(C) 1
(D) None
6. : The IC type 7483 has
(A) 1-bit IC
(B) 4-bit IC
(C) 3-bit IC
(D) 2-bit IC
7. : ‘1’ in most of the logic gates means
(A) 0V
(B) 5V
(C) 1V
(D) 10V
8. : In a 14-pin gate, pin number 14 is marked as
(A) Ground
(B) Vdd
(C) Vcc
(D) AC
9. : When J = 1 and K’ = 1, the flip-flop QA after the shift is equal to
(A) Reset
(B) 0
(C) 1
(D) Defined
10. : What is used to clear the flip-flops?
(A) Multiplexer
(B) Push button
(C) Toggle switch
(D) Demultiplexer
11. : Select the number of ripple counter in IC
(A) 7492
(B) 7865
(C) 7493
(D) 7654
12. : What is it called when the output is equal to zero?
(A) A = B
B” onclick=”checkAnswer(‘q12’, ‘A = B’)”> (B) A > B
(C) A < B
(D) None
13. : Two cross-coupled NAND gates produce
(A) RS Flip-Flop
(B) SR Latch
(C) D Flip-Flop
(D) Master-Slave Flip-Flop
14. : Toggle switches have values of
(A) 1
(B) 0
(C) Both A and B
(D) 2
15. : Logic gates typically operate on
(A) 3V
(B) 4V
(C) 5V
(D) 2V
16. : The clock output and master-slave output produce a
(A) Chart
(B) Map
(C) Timing Diagram
(D) Table
17. : In the full adder circuit using two integrated circuits, one is 7486. Select the other.
(A) 7483
(B) 7400
(C) 74151
(D) 7500
18. : Select the state of WE for write operation in memory
(A) 1
(B) Reset
(C) 0
(D) Cleared
19. : The ME input in RAM stands for
(A) Memory Enabled
(B) Memory Erase
(C) Mechanical Engineer
(D) Mode Erase
20. : Select the combined number for function simplification
(A) 1
(B) 0
(C) 2
(D) 3
21. : The Strobe S in a multiplexer is used as
(A) Reset
(B) Enable
(C) Clear
(D) Stop
22. : The Integrated Circuit number 74151 consists of
(A) 2×1 Mux
(B) 3×8 Decoder
(C) 8×1 Multiplexers
(D) 4-bit Counter
23. : When WE = x, the selected operation is
(A) Running
(B) Storing
(C) Writing
(D) Disabled
24. : The ripple counter IC has ____________ pins
(A) 10 pins
(B) 14 pins
(C) 12 pins
(D) 11 pins
25. : The ratio of two numbers in an operation that determines whether a number is greater, equal, or less than the other is known as
(A) Magnitude Comparator
(B) Logical Circuit
(C) Logic Operator
(D) None of the above
26. : ROM simulator changes binary codes into
(A) Gray Code
(B) Octal
(C) Hex
(D) BCD Code
27. : The ROM simulator adds two 3-bit and 2-bit numbers to give an output of
(A) 2 bits
(B) 4 bits
(C) 3 bits
(D) 5 bits
28. : The four gates in a package are known as
(A) Quadruple
(B) Octruple
(C) Dualruple
(D) Biruple
29. : If E = 0 in an up-down counter with Enable mode, then the counter is
(A) Disable
(B) Enable
(C) Running
(D) None
30. : The 7404 is a
(A) Single Inverter
(B) Decimal Inverter
(C) Binary Inverter
(D) Hex Inverter
31. : The decimal digit in BCD can be expressed through
(A) 1 input line
(B) 4 input lines
(C) 3 input lines
(D) 2 input lines
32. : To start the game in lamp handball, the start switch is located at
(A) Extreme Right Side
(B) Extreme Left Side
(C) Extreme Backside
(D) Both A and B
