1. Which of the following is TRUE about heat and temperature?
A Heat and temperature are the same.
B. Heat and temperature are form of energies.
C. Heat is energy in transit while temperature is the degree of hotness and
D. Heat is the measure of hotness and coldness while temperature is the
amount of heat transfer from one body to another.
2. Which electrical device shuts down when there is overloading in the circuit?
A. fuse
C. circuit breaker
B, voltage source
D. electrical switch
3. Which of the following is the correct statement of Ohm's Law?
A. When current increases in a circuit, voltage increases and resistance
increases
B. When current increases in a circuit, voltage decreases and resistance
C. When current increases in a circuit, voltage increases while resistance
remains constant.
D. When current decreases in a circuit, voltage deci
increases.
ases and resistance
4. Consider a simple electric circuit with a voltage source of 30.0 V which has a
NO NE
D. 29.400 ohms
current of 0.600 A. What is the resistance of the load?
A. 50.0 ohms
B. 18.0 ohms
C. 30.600 ohms
5. The following are advantages of bulbs connected in series EXCEPT:
A. It does not overheat.
B. It is easy to install and maintain.
C. Low current is needed to light all the bulbs.
D. Large amount of current is needed to light all the bulbs.
6. Which of the following best describes a parallel circuit?
A. Current flows along one pathway.
B. Current flows along more than one pathway.
C. The flow of current comes from several sources.
D. The flow of current comes from more than one load.
7. Which of the following statements is NOT true about safety devices used at
home?
A. Safety devices are used to prevent electric shock.
B. Safety devices cut the flow of current in case of overloading.
c. Safety devices are used to provide alternative routes for current in the
case of a grounded circuit.
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