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MCQs

Total Questions : 118 | Page 3 of 12 pages
Question 21. An ohmmeter is an instrument for measuring
  1.    Current
  2.    Voltage
  3.    Resistance
  4.    Wattage
 Discuss Question
Answer: Option C. -> Resistance
Question 22. The atomic number is the number of neutrons in the nucleus.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 23. A twoterminal variable resistor is known as a
  1.    Potentiometer
  2.    Thermistor
  3.    Rheostat
  4.    Wiper
 Discuss Question
Answer: Option C. -> Rheostat
Question 24. A red, red, orange, gold resistor has a nominal value of
  1.    22,000 Ω
  2.    2,200 Ω
  3.    22 Ω
  4.    2.2 Ω
 Discuss Question
Answer: Option A. -> 22,000 Ω
Question 25. A wiper is the sliding contact in a
  1.    Switch
  2.    Photoconductive cell
  3.    Thermistor
  4.    Potentiometer
 Discuss Question
Answer: Option D. -> Potentiometer
Question 26. When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
  1.    12.5 C
  2.    1.25 C
  3.    0.5 C
  4.    5 C
 Discuss Question
Answer: Option C. -> 0.5 C
Question 27. An ammeter is connected across the current path.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 28. Electrons in the outer orbit are called
  1.    Nuclei
  2.    Valences
  3.    Waves
  4.    Shells
 Discuss Question
Answer: Option B. -> Valences
Question 29. A voltmeter is connected across the current path.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 30. The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True

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