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GROL Study Guide Exam UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

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GROL Study Guide Exam UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS What is the basic unit of electrical power? - Ohm - Watt - Volt - Ampere - CORRECT ANSWER Watt What is the term used to express the amount of electrical energy stored in an electrostatic field? - Joules - Coulombs - Watts - Volts - CORRECT ANSWER Joules What is meant by the term "back EMF"? - A current equal to the applied EMF - An opposing EMF equal to R times C (RC) percent of the applied EMF - A voltage that opposes the applied EMF - A current that opposes the applied EMF - CORRECT ANSWER opposes the applied EMF Which of these will be most useful for insulation at UHF frequencies? - A voltage that - Rubber - Mica - Wax impregnated paper - lead - CORRECT ANSWER mica

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GROL Study Guide Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is the basic unit of electrical power?



- Ohm
- Watt

- Volt

- Ampere - CORRECT ANSWER Watt



What is the term used to express the amount of electrical energy stored in an electrostatic
field?



- Joules

- Coulombs
- Watts

- Volts - CORRECT ANSWER Joules



What is meant by the term "back EMF"?



- A current equal to the applied EMF
- An opposing EMF equal to R times C (RC) percent of the applied EMF

- A voltage that opposes the applied EMF

- A current that opposes the applied EMF - CORRECT ANSWER - A voltage that
opposes the applied EMF



Which of these will be most useful for insulation at UHF frequencies?

, - Rubber

- Mica

- Wax impregnated paper

- lead - CORRECT ANSWER mica



Good conductors with minimum resistance have what type of electrons?



- Few free electrons

- No electrons

- Some free electrons

- Many free electrons - CORRECT ANSWER - Many free electrons



Which of the 4 groups of metals listed are the best low-resistance conductors?



- Gold, Silver, copper

- steel, bronze, lead

- iron lead nickel

- bronze zinc manganese - CORRECT ANSWER - Gold, Silver, copper



Halving the cross-sectional area of a conductor will:


- not affect resistance

- quarter it
- double it

- halve it - CORRECT ANSWER - double it



Which of the 4 groups is correct for listing common materials in order of descending
conductivity?
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