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MCQs

Total Questions : 118 | Page 12 of 12 pages
Question 111. . The unit designator for resistance value is the:
  1.    ampere
  2.    ohm
  3.    volt
  4.    watt
 Discuss Question
Answer: Option B. -> ohm
Question 112. . One ampere of current flowing through one ohm of resistance is equal to:
  1.    1 horsepower
  2.    1 Btu
  3.    1 watt
  4.    1 joule
 Discuss Question
Answer: Option C. -> 1 watt
Question 113. . Good insulators:
  1.    have few electrons in their outer shells
  2.    have a large dielectric strength
  3.    have a small breakdown voltage
  4.    have many electrons in the nucleus
 Discuss Question
Answer: Option B. -> have a large dielectric strength
Question 114. . A rheostat is ___.
  1.    a two-terminal device that controls current
  2.    a three-terminal device that controls current
  3.    a two-terminal device that divides voltage
  4.    a three-terminal device that divides voltage
 Discuss Question
Answer: Option A. -> a two-terminal device that controls current
Question 115. . The power rating of a resistor is __________ related to __________.
  1.    directly, the type of cooling used
  2.    indirectly, the type of material used
  3.    directly, its surface area
  4.    indirectly, the color coding
 Discuss Question
Answer: Option C. -> directly, its surface area
Question 116. . A rheostat is ___.
  1.    a two-terminal device that controls current
  2.    a three-terminal device that controls current
  3.    a two-terminal device that divides voltage
  4.    a three-terminal device that divides voltage
 Discuss Question
Answer: Option A. -> a two-terminal device that controls current
Question 117. . Good insulators:
  1.    have few electrons in their outer shells
  2.    have a large dielectric strength
  3.    have a small breakdown voltage
  4.    have many electrons in the nucleus
 Discuss Question
Answer: Option B. -> have a large dielectric strength
Question 118. . The power rating of a resistor is __________ related to __________.
  1.    directly, the type of cooling used
  2.    indirectly, the type of material used
  3.    directly, its surface area
  4.    indirectly, the color coding
 Discuss Question
Answer: Option C. -> directly, its surface area

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