Practice Test: Question Set - 01
1. A material that does not allow current under normal conditions is a/an
- (A) Insulator
- (B) Conductor
- (C) Semiconductor
- (D) Valence
2. A two-terminal variable resistor is known as a
- (A) Potentiometer
- (B) Thermistor
- (C) Rheostat
- (D) Wiper
3. A free electron is a valence electron that has broken away from its parent atom.
- (A) True
- (B) False
4. If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?
- (A) 10.5 C
- (B) 105 C
- (C) 3.4 C
- (D) 34 C
5. A neutral atom is one with an equal number of protons and electrons.
- (A) True
- (B) False
6. An ohmmeter is an instrument for measuring
- (A) Current
- (B) Voltage
- (C) Resistance
- (D) Wattage
7. The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
- (A) True
- (B) False
8. The unit of electrical charge is the
- (A) Coulomb
- (B) Joule
- (C) Volt
- (D) Watt
9. The atomic number is the number of neutrons in the nucleus.
- (A) True
- (B) False
10. When placed close together, two positively charged materials will
- (A) Attract
- (B) Become
neutral
- (C) Become
negative
- (D) Repel
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