Here Is the Collected Most Important 100+ MCQ From Basic Electronic for Upcoming Technical Exam in Various Sector (DON'T IGNORE THIS)
1: The high voltage at the output of a circuit shows that the circuit is
a) Digital
b) Analog
c) Hybrid
d) Both digital and analog
2: the sign wave shows
a) Non-hormonic signal
b) Digital signal
c) Analog
d) Analog and hormonic
3: the square wave shows
a) Non-hormonic signal
b) Digital signal
c) Analog
d) Analog and hormonic
4: a logic gate can handle
a) Decimal numbers
b) Analog signals
c) High voltage
d) None of these
5: An integrated circuit ( IC ) is formed of
a) Transistors
b) Resistors
c) Diodes
d) None of these
6: the output expression of EX-NOR gate is
a) AOB
b) A+B
c) AB +A B
d) None of these
7: If 10V AC and 5V AC are given to two inputs of OR gate the output would be
a) 5 V
b) 15 V
c) 0 V
d) None of these
8: Logic gates are used to perform
a) Boolean operation
b) Digital operation
c) Binary operation
d) All of these
9: The revers breakdown in diode operation is required when the diode is used in
a) Digital devices
b) Analog devices
c) Both digital and analog
d) None of these
10: which of the following need biasing?
a) Diode
b) Transistor
c) IC
d) All of these
11: A 3 input NAND gate cannot be used in construct?
a) NOT gate
b) AND gate
c) EX-OR gate
d) None of these
12: A binary adder can be used as
a) Temporary charge storage device
b) Current storage device
c) Potential barrier
d) Counter
13: If middle leg of an IC breaks, it cannot perform
a) Binary operations
b) Gated operations
c) Digital operations
d) None of these
14: ideal and practical diode behave same when they are
a) Reverse bias
b) Forward bias
c) None of these
d) All of three
15: A semiconductor generally has ............. valence electrons.
a) 2
b) 3
c) 4
d) 5
16: When a pure semiconductor is heated, its resistance......
a) goes down
b) goes up
c) remains the same
d) none of the above
17: A pentavalent impurity has ......
a) 3 valence electrons
b) 6 valence electrons
c) 4 valence electrons
d) 5 valence electrons
18: A trivalent impurity has..
a) 3 valence electrons
b) 5 valence electrons
c) 6 valence electrons
d) 4 valence electrons
19: The charge of a hole is ....
a) zero
b) equal to that of a proton
c) equal to that of an electron
d) equal to that of a neutron
20: The barrier voltage at a pn junction for germanium is about .....
a) 0.3V
b) 3.5V
c) 3V
d) zero
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