HVAC Electrical Basics Practice Test 2

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Author:
salvatorefricano
ID:
305015
Filename:
HVAC Electrical Basics Practice Test 2
Updated:
2015-07-09 17:45:30
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HVAC Electrical Basics Practice Test 2
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  1. In a parallel circuit , which of the quantity remains same: 
    A:Power 
    B:Voltage 
    C:Current 
    D:Resistance
    B:Voltage
  2. Which of the following factors affect the Insulation Resistance Measurement value: 
    A:Temperature 
    Duration of the measurement 
    B:Humidity 
    C:All the options are correct
    C:All the options are correct
  3. Frequency in a dc circuit will be ______: 
    A:0 Hz 
    B:60 Hz 
    C:50 Hz 
    D:120 Hz
    A:0 Hz
  4. In a series circuit, ______ remains same through out the circuit: 
    A:Current 
    B:Power 
    C:Voltage 
    D:All the options are correct
    A:Current
  5. When a conductor is cut by magnetic flux lines emf is produced: 
    True 
    False
    True
  6. Which of the following has negative charge: 
    A:neutron 
    B:nucleus 
    C:proton 
    D:electron
    D:electron
  7. Power factor in a resistive circuit will be _______ : 
    A:Resistive 
    B:Leading 
    C:Lagging
    A:Resistive
  8. Impedance in AC Circuit constitutes which of the following: 
    A:Resistance Inductive
    B:reactance Capacitive
    C:reactance 
    D:All the options are correct
    D:All the options are correct
  9. In a 60 Hz ac circuit current wave, current value reaches to zero ______ times in a second 
    A:61 
    B:100 
    C:120 
    D:60
    C:120
  10. In a purely capacitive circuit, power factor of the circuit will be _______ 
    A:lagging 
    B:leading 
    C:unity
    B:leading
  11. In a dc circuit, capacitor acts as ______: 
    A:Open circuit 
    B:Short Circuit
    A:Open circuit
  12. 1 watt power = _______ Btu 
    A:341.2 
    B:3.412 
    C:3412 
    D:34.12
    B:3.412
  13. Ground wire that connects frame of an electrical load and earth has a color code _______: 
    A:Red 
    B:Blue 
    C:Black 
    D:Green
    D:Green
  14. Solenoid valves are ________ operated: 
    A:Hydraulic 
    B:electrically 
    C:magentic 
    D:Pneumatic
    B:electrically
  15. Capacitor motor has which of the following: 
    A:high starting current, high starting torque
    B: low starting current, high starting torque 
    C:low starting current, low starting torque 
    D:high starting current, low starting torque
    A:high starting current, high starting torque

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