Quiz  /  Earthing or Grounding Class 9 MCQ Questions With Answers

  • 1. 
    Fuse wire should possess

  • High specific resistance and high melting point
  • High specific resistance and low melting point
  • Low specific resistance and low melting point
  • Low specific resistance and high melting point

  • 2. 
    What is earthing?

  • connecting electrical machines to earth
  • providing a connection to the ground
  • connecting the electrical machines to the source
  • providing a source of current

  • 3. 
    True or FalseThe Ohmmeter may be used for the continuity test

  • True
  • False

  • 4. 
    A visual inspection of a new installation is carried out:

  • During the installation process
  • to detect open and short circuits
  • After all tests are completed
  • upon completion but before testing.

  • 5. 
    What is an earth electrode?

  • electrode that is connected to earth
  • material used for earthing
  • electrode connected to the circuit
  • electrode which is connected to the mains

  • 6. 
    A process that uses instruments to obtain readings or identify faults is one description of

  • Testing
  • Inspection
  • Spot Checking
  • Measurement

  • 7. 
    Which of the following earthing systems has the path for earth leakage currents via the earth itself:

  • TN-S
  • TNC-S
  • TN-C
  • TT

  • 8. 
    True or FalseAfter performing an insulation resistance test, the insulation was deemed low. This is perfect for the insulation

  • True
  • False

  • 9. 
    True or FalseA continuity tester may be used when performing a polarity test.

  • True
  • False

  • 10. 
    True or FalseAll lamps are removed when carrying out an insulation resistance test.

  • True
  • False

  • 11. 
    The preferred method of testing RCD's are:

  • Built-in test button
  • Use of RCD Tester
  • Use of Multimeter
  • Use of Ohmmeter

  • 12. 
    Which of the following reduces the earth's resistivity

  • Salt
  • Lead
  • Copper
  • Earth

  • 13. 
    What test is done to find out if there are breaks in a circuit?

  • Voltage
  • Continuity
  • Resistance
  • Polarity
Report Question
warning
access_time
  Time