* Certificate in Computer Hardware Maintenance (CCHM) *
61. DIODE are_______
a) TWO type
b) THREE type
c) FOUR type
d) FIVE type
Answer: B
62. A data conversion system may be used to interface a digital computer system to _________.
a) An analog output device
b) A digital output device
c) An analog input device
d) A digital printer
Answer: A
63. 223 on a capacitor represents_______
a) 0.022u u
b) 22n n
c) 22,000 p p
d) All of the above
Answer: C
64. PNP and NPN transistors are same in terms of working.
a) TRUE
b) FALSE
c) N.A.
d) N.A.
Answer: B
65. The voltages in digital electronics are continuously variable.
a) TRUE
b) FALSE
c) N.A.
d) N.A.
Answer: A
66. capacitor is a_______
a) Loss electrical energy
b) Store electrical energy
c) Both
d) None of this
Answer: B
67. LED light works Forward bias.
a) TRUE
b) FALSE
c) N.A.
d) N.A.
Answer: A
68. Transistor amplify the signal.
a) TRUE
b) FALSE
c) N.A.
d) N.A.
Answer: A
69. Electrolytic capacitor used in_______
a) AC Supply
b) DC Supply
c) Both
d) None of this
Answer: B
70. In case of Short Circuit, ________ Current will flow in the Circuit.
a) Zero
b) Very Low
c) Normal
d) Infinite
Answer: D
71. Full form of A.C. is_______
a) Air Conditioner
b) Air Conduct
c) Alternative Current
d) None of this
Answer: C
72. Electrolytic condenser works only in_______
a) AC supply
b) DC supply
c) AC DC both supply
d) N.A.
Answer: B
73. An IC regulator receives an overload; it will:
a) Shut down
b) Compensate for heat
c) Provide more voltage
d) Sample and adjust
Answer: A
74. Capacitor unit is_______
a) FARAD
b) OHM
c) JUL
d) MICRO FARAD
Answer: D
75. IC stands for_______
a) Information Center
b) Iron Coil
c) Integrated Circuit
d) None of this
Answer: C
76. 2.2 k resistance colour code is_______
a) Red Red Orange
b) Red Red Red
c) Red Red Yellow
d) Red Red Black
Answer: B
77. if two resistor are placed in series ,is the final resistance_______
a) Higher
b) Lower
c) Same
d) N.A.
Answer: A
78. LED is_______
a) CONDENSOR
b) DIODE
c) RESISTANCE
d) COIL
Answer: B
79. Brown Black Black Resistance colour code is_______
a) 1000 Kilo ohm
b) 100 ohm
c) 10 ohm
d) 100 Kilo ohm
Answer: C
80. Any number with an exponent of zero is equal to:
a) Zero
b) One
c) That number
d) Ten
Answer: B