Quiz 4 Flashcards
Introduction to Electrical Devices
A drawing that shows components of a circuit as they would actually appear is called a(n)
drawing.
a. architectural / component
b. photographic / pictorial
c. pictorial / architectural
d. pictorial / component
A(n) ? drawing makes it easy to follow the path of electricity through a circuit.
a. architectural
b. component
c. pictorial
d. schematic
d. schematic
Most electrical drawings used in apprenticeship are pictorial drawings.
True or False?
False.
Identify all of the components in the following circuit.
(Insert picture of schematic)
[Voltmeter, Fuse Battery, Closed switch, and Resistor]
A → ?
B → ?
C → ?
D → ?
E → ?
A → Battery
B → Closed switch
C → Fuse
D → Voltmeter
E → Resistor
Match the following images to their correct term.
(Insert pictures of aforementioned electrical symbols)
[Fuse, Potentiometer, Fuse, Coil, Ammeter, and Normally-open switch]
Normally-open switch →
Potentiometer →
Ammeter →
Fuse →
Coil →
Match the following images to their correct term.
(Insert images of aforementioned electrical symbols)
[Resistor, Voltmeter, Battery, Normally-closed switch, Lamp]
Battery →
Lamp →
Normally-closed switch →
Resistor →
Voltmeter →
A series circuit always has more than one current path.
True or False?
False. A parallel circuit, has more than one path.
Match the following images to their correct resistor type.
(Insert images of resistor types)
[Fixed, Adjustable, Variable, Tapped]
Fixed →
Tapped →
Adjustable →
Variable →
Resistance in a circuit ? current flow.
a. aids
b. increases
c. limits
d. slows down
c. limits
The unit of measure of resistance is the ?.
a. amp
b. farad
c. ohm
d. volt
c. ohm
Which of the following is not one of the four fixed resistor types mentioned in the textbook?
a. Carbon composition
b. Metal glaze
c. Metal film
d. Silicon
e. Wire wound
d. Silicon
Variable resistors may be either composition or wire wound.
True or False?
True.
A resistor with a movable contact that is adjusted by turning a shaft or stem is called a(n) ? resistor.
a. adjustable
b. fixed
c. tapped
d. variable
d. variable
If only two leads are used on a variable resistor, it is called a(n) ?.
a. adjustable
b. potentiometer
c. rheostat
d. variable resistor
c. rheostat
When all three leads are used on a variable resistor, it is called a(n) ?.
a. adjustable
b. potentiometer
c. rheostat
d. variable resistor
b. potentiometer
The two general types of resistors are fixed and variable.
True or False?
True.
Which of the following is not an important number associated with a resistor?
a. The power rating
b. The resistance value
c. The tolerance
d. None of the above
d. None of the above
A resistor that has a tolerance band that is gold in color has a tolerance of ?.
a. ±1%
b. ±5%
c. ±10%
d. ±20%
b. ±5%
A resistor that is ¹/₈ inch in diameter and ³/₈ inch long is a ? resistor.
a. ¹/₈ watt
b. ¹/₄ watt
c. ¹/₂ watt
d. 1 watt
c. ¹/₂ watt
A resistor with color bands of green–red–orange (from left to right) has a resistance value of ?.
a. 520 ohms
b. 5,200 ohms
c. 52,000 ohms
d. 520, 000 ohms
c. 52, 000 ohms
If a resistor has a last band that is silver, what would be the tolerance of the resistor?
a. ±1%
b. ±5%
c. ±10%
d. ±20%
c. ±10%
