digital electronics
PART – A
In this ___________system, the digits are 0to 9 and A
to F.
A) Binary
B) Octal
C) Hexadecimal
D) Decimal
Ans : C
What is term called for the product of the binary
number after taking its two’s complement twice?
A) One’s complement
B) Two’s complement
C) Double complement
D) None of these
Ans : C
ECL stands for_____________
A) Emitter Controlled Logic
B) Emitter Connected Logic
C) End Coupled Logic
D) Emitter Coupled Logic
Ans : D
Which of one of this number system is having eight
digits in it?
A) Decimal
B) Hexa Decimal
C) Binary
D) Octal
Ans : D
An Op-amp configuration where
the output waveform is the integral of the input wave form is called___________
A) Summing Amplifier
B) Inverting Amplifier
C) Differentiator
D) Integrator
Ans : D
A + 0 = ______
A) 0
B) 1
C) A
D) None of the above
Ans
: C
2’s complement of 01101 is __________
A)
10111
B)
001101
C)
01110
D)
10011
Ans
: D
What is the Output of a
3-input NAND gate with A = 1, B = 0 and C = 1?
A) 0
B) 1
C) 0.5
D) None of the above
Ans : B
If the capacitor and resistor in the Op-amp Integrator
is replaced, it forms a ____________.
A) Integrator
B) Differentiator
C) Voltage Follower
D) Summing Op-amp
Ans : B
_____ adds two binary digits
and produces two binary outputs called Sum and Carry.
A) Half Adders
B) Full Adders
C) Binary Adders
D) None of the above
Ans : B
In
the Exclusive – NOR Gate (XOR), if the input A is low and the input B is high,
then the output is __________.
A) Low
B) High
C) Very High
D) Very Low
Ans : A
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