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MCQs

Total Questions : 118 | Page 2 of 12 pages
Question 11. A material that does not allow current under normal conditions is a/an
  1.    Insulator
  2.    Conductor
  3.    Semiconductor
  4.    Valence
 Discuss Question
Answer: Option A. -> Insulator
Question 12. A potentiometer is a twoterminal variable resistor.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 13. The current in a given circuit is not to exceed 24 A. Which value of fuse is best?
  1.    A fuse is not necessary
  2.    10 A
  3.    24 A
  4.    20 A
 Discuss Question
Answer: Option C. -> 24 A
Question 14. An ammeter is an electrical instrument used to measure
  1.    Current
  2.    Voltage
  3.    Resistance
  4.    None of the above
 Discuss Question
Answer: Option A. -> Current
Question 15. An open circuit is one that has a complete current path.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 16. A neutral atom is one with an equal number of protons and electrons.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 17. The maximum resistance value for a brown, red, yellow, gold resistor is
  1.    126,000 Ω
  2.    126,600 Ω
  3.    114,000 Ω
  4.    132,000 Ω
 Discuss Question
Answer: Option A. -> 126,000 Ω
Question 18. Which of the following is not a type of energy source?
  1.    Generator
  2.    Rheostat
  3.    Solar cell
  4.    Battery
 Discuss Question
Answer: Option B. -> Rheostat
Question 19. A thermistor is a type of
  1.    Switch
  2.    Resistor
  3.    Battery
  4.    Power supply
 Discuss Question
Answer: Option B. -> Resistor
Question 20. A free electron is a valence electron that has broken away from its parent atom.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True

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