Page 61 - Teach Yourself Electricity and Electronics

Quiz 41

B. 0.5 Ω.
C. 0.05 Ω.
D. 0.02 Ω.

6. A resistor has a value of 300 ohms. Its conductance is:
A. 3.33 millisiemens.
B. 33.3 millisiemens.
C. 333 microsiemens.
D. 0.333 siemens.
7. A mile of wire has a conductance of 0.6 siemens. Then three miles of the same
wire has a conductance of:
A. 1.8 siemens.
B. 1.8 Ω.
C. 0.2 siemens.
D. Not enough information has been given to answer this.
8. A 2-kW generator will deliver approximately how much current, reliably, at 117
V?
A. 17 mA.
B. 234 mA.
C. 17 A.
D. 234 A.
9. A circuit breaker is rated for 15 A at 117 V. This represents approximately how
many kilowatts?
A. 1.76.
B. 1760.
C. 7.8.
D. 0.0078.
10. You are told that a certain air conditioner is rated at 500 Btu. What is this in
kWh?
A. 147.
B. 14.7.
C. 1.47.
D. 0.147.
11. Of the following energy units, the one most often used to define electrical
energy is:
A. The Btu.
B. The erg.