A+ Sample Questions » A+ Core Hardware questions

A+ Core Hardware practice questions

91. If the voltage on pin 1 of the power supply is not in the range of ______ volts, the PC will not boot.
    1. 10 - 20
    2. 1 - 5
    3. 50 - 110
    4. 15 - 25
    5. 2.5 - 5

    Answer :E

92. The output voltages of a PC power supply are in the form of _____ current.
    1. AC
    2. DC
    3. amperage
    4. resistive
    5. trickle

    Answer :B

93. The output voltages from a PC power supply are:
    1. +20, +110, -20, -110
    2. +5, +12, -5, -12
    3. +110, -110, +25, -25
    4. +10, -10, +20, -20
    5. +110, -15, +25, -5

    Answer :B

94. A spike is a sharp and sudden rise in voltage It's duration is usually measured in:
    1. nanoseconds
    2. milliseconds
    3. seconds
    4. minutes
    5. picto seconds

    Answer :B

95. A brownout is defined as:
    1. a slightly elevated voltage lasting from seconds to minutes or more
    2. a slightly decreased voltage lasting from seconds to minutes or more
    3. complete power out lasting a few minutes
    4. alternating power out, power on lasting a few minutes
    5. has nothing to do with electricity

    Answer :B

96. Resistance is measured in units of:
    1. ohms
    2. farads
    3. helids
    4. amperes
    5. volts

    Answer :A

97. Current is measured in units of:
    1. volts
    2. amps
    3. ohms
    4. farads
    5. diodes

    Answer :B

98. Capacitance is measured in units of:
    1. volts
    2. amps
    3. farads
    4. neutrinos
    5. anti-neutrinos

    Answer :C

99. Voltage is measured:
    1. in parallel
    2. in series
    3. after breaking the circuit
    4. after checking resistance
    5. after checking current

    Answer :A

100. Resistance is measured:
     1. in parallel
     2. in series
     3. after breaking the circuit
     4. after checking voltage
     5. after checking current

     Answer :C