1) The basic logic operation is _____.
(A) AND
(B) NOR
(C) NAND
(D) NOR
Answer :- (A) AND
2) Which of the following belongs to the logic families of integrated circuits?
(A) Transistor Transistor Logic (TTL)
(B) Metal Oxide Semiconductor (MOS)
(C) Complementary Metal Oxide Semiconductor (CMOS)
(D) All of the above
Answer :- (D) All of the above
3) _________ is preferable in system requiring low power consumption.
(A) Emitter Coupled Logic (ECL)
(B) Metal Oxide Semiconductor (MOS)
(C) Complementary Metal Oxide Semiconductor (CMOS)
(D) Transistor Transistor Logic (TTL)
Answer :- (C) Complementary Metal Oxide Semiconductor (CMOS)
4) T flip-flop means _______
(A) Timed flip-flop
(B) Toggle flip-flop
(C) Tackle flip-flop
(D) Test flip-flop
Answer :- (B) Toggle flip-flop
5) Half adder is an example of _____
(A) Combinational circuit
(B) Sequential circuit
(C) Asynchronous circuit
(D) None of these
Answer :- (A) Combinational circuit
6) Full adder is used to _____
(A) 2 bit addition
(B) 3 bit addition
(C) 4 bit addition
(D) Addition of unlimited number of bits
Answer :- (B) 3 bit addition
7) Which of the following flip-flop is different ,in context of their outputs?
(A) SR flip-flop
(B) D flip-flop
(C) JK flip-flop
(D) None of these
Answer :- (C) JK flip-flop
8) Which of the following is not a number system ?
(A) Hexadecimal
(B) Octal
(C) Radix
(D) Binary
Answer :- (C) Radix
9) Which of the following is not a combinational circuit ?
(A) Encoders
(B) Decoders
(C) Registers
(D) Multiplexers
Answer :- (C) Registers
10) Which of the following belongs to DeMorgan's theorems?
(A) x + x =1
(B) xy = yx
(C) (xy)' = x' + y'
(D) x . 0 = 0
Answer :- (C) (xy)' = x' + y'
11) An encoder has 2n input lines and ____ output lines
(A) 2
(B) n
(C) 2 * n
(D) n * n
Answer :- (B) n
12) There are occasions when it does not matter if the function produces 0 or 1 for a given minterm.
Minterms that may produce either 0 or 1 for the function are said to be ____
(A) Careless conditions
(B) Don't care condition
(C) Minterm condition
(D) Maxterm condition
Answer :- (B) Don't care condition
13) ASCII code for alphabetic character requires ____ bits
(A) 16
(B) 15
(C) 8
(D) 7
Answer :- (D) 7
14) The number that cannot be normalized, in floating point ___
(A) 1
(B) 0
(C) Both (A) and (B)
(D) None of these
Answer :- (B) 0
15) The 3-bit operation code for ADD operation is 001 and indirect memory address is 23 then 16-bit instruction code can be written as ____
(A) 00001000000010111
(B) 1001000000010111
(C) 10001000000010111
(D) None of the above
Answer :- (A) 00001000000010111
16) Which of following is/are application(s) of flip-flop?
(A) Bounce elimination switch
(B) Latch
(C) Counters
(D) All of the above
Answer :- (D) All of the above
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(A) AND
(B) NOR
(C) NAND
(D) NOR
Answer :- (A) AND
2) Which of the following belongs to the logic families of integrated circuits?
(A) Transistor Transistor Logic (TTL)
(B) Metal Oxide Semiconductor (MOS)
(C) Complementary Metal Oxide Semiconductor (CMOS)
(D) All of the above
Answer :- (D) All of the above
3) _________ is preferable in system requiring low power consumption.
(A) Emitter Coupled Logic (ECL)
(B) Metal Oxide Semiconductor (MOS)
(C) Complementary Metal Oxide Semiconductor (CMOS)
(D) Transistor Transistor Logic (TTL)
Answer :- (C) Complementary Metal Oxide Semiconductor (CMOS)
4) T flip-flop means _______
(A) Timed flip-flop
(B) Toggle flip-flop
(C) Tackle flip-flop
(D) Test flip-flop
Answer :- (B) Toggle flip-flop
5) Half adder is an example of _____
(A) Combinational circuit
(B) Sequential circuit
(C) Asynchronous circuit
(D) None of these
Answer :- (A) Combinational circuit
6) Full adder is used to _____
(A) 2 bit addition
(B) 3 bit addition
(C) 4 bit addition
(D) Addition of unlimited number of bits
Answer :- (B) 3 bit addition
7) Which of the following flip-flop is different ,in context of their outputs?
(A) SR flip-flop
(B) D flip-flop
(C) JK flip-flop
(D) None of these
Answer :- (C) JK flip-flop
8) Which of the following is not a number system ?
(A) Hexadecimal
(B) Octal
(C) Radix
(D) Binary
Answer :- (C) Radix
9) Which of the following is not a combinational circuit ?
(A) Encoders
(B) Decoders
(C) Registers
(D) Multiplexers
Answer :- (C) Registers
10) Which of the following belongs to DeMorgan's theorems?
(A) x + x =1
(B) xy = yx
(C) (xy)' = x' + y'
(D) x . 0 = 0
Answer :- (C) (xy)' = x' + y'
11) An encoder has 2n input lines and ____ output lines
(A) 2
(B) n
(C) 2 * n
(D) n * n
Answer :- (B) n
12) There are occasions when it does not matter if the function produces 0 or 1 for a given minterm.
Minterms that may produce either 0 or 1 for the function are said to be ____
(A) Careless conditions
(B) Don't care condition
(C) Minterm condition
(D) Maxterm condition
Answer :- (B) Don't care condition
13) ASCII code for alphabetic character requires ____ bits
(A) 16
(B) 15
(C) 8
(D) 7
Answer :- (D) 7
14) The number that cannot be normalized, in floating point ___
(A) 1
(B) 0
(C) Both (A) and (B)
(D) None of these
Answer :- (B) 0
15) The 3-bit operation code for ADD operation is 001 and indirect memory address is 23 then 16-bit instruction code can be written as ____
(A) 00001000000010111
(B) 1001000000010111
(C) 10001000000010111
(D) None of the above
Answer :- (A) 00001000000010111
16) Which of following is/are application(s) of flip-flop?
(A) Bounce elimination switch
(B) Latch
(C) Counters
(D) All of the above
Answer :- (D) All of the above
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