Generally, for checking the result in a single bit, we use _ indicator.
A. Logic Converter
B. Logic Tester
C. Probe
D. 7-sagment Display
We can simplify a logic circuit using __ device in Electronic Workbench.
A. Truth Table
B. Boolean Algebra
C. Circuit Minimizer
D. Logic Converter
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If Z = (A+B’+C)’ then Z will be logic high only if _.
A. A = 1, B = 1, C = 1
B. A = 0, B = 0, C = 0
C. A = 0, B = 1, C = 0
D. A = 0, B = 0, C = 1
A logic circuit having N inputs, can have __ different input
combinations.
A. N x N
B. 2 x N
C. N+2
D. 2^N
In a 4-bit odd counter, if the current state is 0001 then the next state will be
__.
A. 0010
B. 0000
C. 0011
D. 1100
The 4-bit grey code for the binary 1001 will be ___.
A. 1100
B. 0011
C. 1111
D. 1101
What will be boolean expression for the function F(A, B, C) = Π(0, 1, 3, 7)
A. (A+B+C)(A+B+C’)(A+B’+C’)(A’+B’+C’)
B. (A+B’+C)(A+B+C’)(A’+B’+C)(A+B+C)
C. (A’+B’+C)(A’+B+C’)(A’+B+C)(A’+B’+C’)
D. (A’+B+C)(A+B’+C)(A+B+C’)(A’+B’+C’)
Which of the following is the correct maxterm ID for the term x+y’+z?
A. M2
B. M5
C. m2
D. m5
Which of the following gates is used to get the sum output of the full adder
circuit?
A. AND
B. OR
C. NOR
D. XOR
To build an XOR gate using basic gates only, _ gates can be used?
A. 4 NAND
B. 2 NAND
C. 2 NOR
D. 4 NOR
Which of the following is correct expression for carry output in a half-adder
circuit?
A. A XOR B
B. A NOR B
C. A AND B
D. A NAND B
Which of the following is not a type of combinational circuit?
A. Multiplexer
B. Demultiplexer
C. Counter
D. Full Adder
Which of the following is not a type of sequential circuit?
A. Counter
B. Register
C. Flip-flop
D. Full Adder
In a 74151, 1-of-8 Data Sel/Mux, which of the following pins is used as strobe
signal?
A. Y
B. W
C. G’
D. GND
In a 1-of-8 decoder, what will be the value of output Y when strobe pin is set to
logic high?
A. Y=0
B. Y=W
C. Y=1
D. Y=D0
Which of the examples below expresses the commutative law of multiplication?
A. A + B = B + A
B. A • B = B + A
C. A • (B • C) = (A • B) • C
D. A • B = B • A