Q.1.
A wiper is the sliding contact in a
-
switch -
photoconductive cell -
thermistor -
potentiometer
Q.2.
A neutral atom with an atomic number of five has how many electrons?
-
1 -
5 -
none -
depends on the type of atom
Q.3.
The maximum resistance value for a brown, red, yellow, gold resistor is
-
126,000 
-
126,600 -
114,000 -
132,000
Q.4.
The maximum resistance value for a brown, red, yellow, gold resistor is
-
126,000 -
126,600 -
114,000 -
132,000
Q.5.
A material that does not allow current under normal conditions is a(n)
- insulator
- conductor
- semiconductor
- valence
Q.6.
Eight-tenths coulomb passes a point in 4 s. The current in amperes is
- 1.6 A
- 16 A
- 2 A
- 0.2 A
Q.7.
A two-terminal variable resistor is known as a
- potentiometer
- thermistor
- rheostat
- wiper
Q.8.
Current flows in a circuit when
- A switch is opened
- A switch is closed
- The switch is either open or closed
- There is no voltage
Q.9.
Eighttenths coulomb passes a point in 4 s. The current in amperes is
- 1.6 A
- 16 A
- 2 A
- 0.2 A
Q.10.
The unit of electrical charge is the
- Coulomb
- Joule
- Volt
- Watt
Q.11.
The nominal value of a brown, black, yellow, and gold resistor is 100,ohms.
- True
- False
Q.12.
A voltmeter is connected across the current path.
- True
- False
Q.13.
A free electron is a valence electron that has broken away from its parent atom.
- True
- False
Q.14.
The atomic number is the number of neutrons in the nucleus.
- True
- False
Q.15.
An ohmmeter is an instrument for measuring
- Current
- Voltage
- Resistance
- Wattage
Q.16.
A red, red, orange, gold resistor has a nominal value of
- 22,000 Ω
- 2,200 Ω
- 22 Ω
- 2.2 Ω
Q.17.
A twoterminal variable resistor is known as a
- Potentiometer
- Thermistor
- Rheostat
- Wiper
Q.18.
A wiper is the sliding contact in a
- Switch
- Photoconductive cell
- Thermistor
- Potentiometer
Q.19.
When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
- 12.5 C
- 1.25 C
- 0.5 C
- 5 C
Q.20.
An ammeter is connected across the current path.
- True
- False
Q.21.
Electrons in the outer orbit are called
- Nuclei
- Valences
- Waves
- Shells
Q.22.
Which of the following is not a type of energy source?
- Generator
- Rheostat
- Solar cell
- Battery
Q.23.
A thermistor is a type of
- Switch
- Resistor
- Battery
- Power supply
Q.24.
The maximum resistance value for a brown, red, yellow, gold resistor is
- 126,000 Ω
- 126,600 Ω
- 114,000 Ω
- 132,000 Ω
Q.25.
A neutral atom is one with an equal number of protons and electrons.
- True
- False
Q.26.
An open circuit is one that has a complete current path.
- True
- False
Q.27.
An ammeter is an electrical instrument used to measure
- Current
- Voltage
- Resistance
- None of the above
Q.28.
The current in a given circuit is not to exceedA. Which value of fuse is best?
- A fuse is not necessary
- 10 A
- 24 A
- 20 A
Q.29.
A potentiometer is a twoterminal variable resistor.
- True
- False
Q.30.
A material that does not allow current under normal conditions is a/an
- Insulator
- Conductor
- Semiconductor
- Valence