Resistance and Power Questions and Answers

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Q41
A 22-gauge wire will have a diameter in mils of:
  • A 10.03
  • B 22.35
  • C 45.26
  • D 71.96
Answer: Option B
Q42
The word work means that:
  • A energy has been transferred
  • B it is inversely related to energy
  • C no energy has been transferred
  • D work and energy are not related
Answer: Option A
Q43
A good fuse will have:
  • A zero ohms resistance
  • B a medium resistance
  • C a high resistance
  • D an infinite resistance
Answer: Option A
Q44
What property does an incandescent lamp possess?
  • A cold resistance
  • B hot resistance
  • C ballast resistance
  • D both cold and hot resistance
Answer: Option D
Q45
One advantage of a carbon film resistor over a carbon composition resistor is:
  • A less circuit noise
  • B smaller size
  • C higher wattage
  • D poor tolerance
Answer: Option A
Q46
If a metallic conductor has a positive temperature coefficient of resistance, then:
  • A as temperature increases, resistance decreases
  • B as current increases, resistance decreases
  • C as voltage increases, current increases
  • D as temperature increases, resistance increases
Answer: Option D
Q47
If a calculator display was "0.00263," what would this answer be in percent?
  • A 0.026%
  • B 0.26%
  • C 2.63%
  • D 26.3%
Answer: Option B
Q48
A 33 komega.gif resistor with a 20% tolerance checks out as ok with which of the following ohmmeter readings?
  • A 26400 ohms
  • B 24183 ohms
  • C 6600 ohms
  • D 39970 ohms
Answer: Option A
Q49
After a lamp is turned on, its filament resistance will change to become:
  • A less resistive
  • B cooler
  • C brighter
  • D more resistive
Answer: Option D
Q50
Wirewound resistors are usually used in circuits that have:
  • A high current
  • B negative temperature coefficients
  • C low power
  • D high voltage
Answer: Option A

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