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WorksheetsElectronics Resistor
Total questions: 22
Worksheet time: 13mins
Name
Class
Date
1.
What are fixed power resistors made from most often?
a)
silver filament
b)
carbon film
c)
metal film
d)
wire wound
2.
Resistors can be found in __________ types of electronic equipment
a)
all
b)
a few
c)
no
d)
most
3.
Which of these is a very good insulator?
a)
water
b)
silver
c)
wood
d)
rubber
4.
What is the color for the numerical value of 2 on a resistor?
a)
brown
b)
black
c)
orange
d)
red
5.
What are the color codes for a 470k ohm resistor?
a)
Yellow, Violet, Yellow
b)
Orange, Grey, Orange
c)
Yellow, Violet, Orange
d)
Orange, Grey, Yellow
6.
A conductor____________________________
a)
will not conduct current
b)
resists current flow
c)
provides a path for current flow
d)
provides no path for current flow
7.
Which of these is NOT a requirement for a simple circuit?
a)
Voltage
b)
Load
c)
Conductor
d)
Light
8.
What is the tolerance for a Red, Brown, Brown, Silver resistor?
a)
1%
b)
20%
c)
5%
d)
10%
9.
What is the resistance for a Red, Brown, Black resistor?
a)
21 Ohms
b)
210 Ohms
c)
12 Ohms
d)
120 Ohms
10.
Resistance is measured in\:
a)
volts
b)
amps
c)
ohms
d)
watts
11.
What is the tolerance for a Green, Red, Black, Gold resistor?
a)
1%
b)
20%
c)
5%
d)
10%
12.
How is the value of resistance marked on a power resistor?
a)
printed
b)
color bands
c)
number/letter code
d)
military specification code
13.
What is the color code for a Orange, Black, Red resistor?
a)
3k Ohms
b)
200 Ohms
c)
300 Ohms
d)
2K Ohms
14.
What is the purpose of a resistor?
a)
control current flow
b)
allow current flow
c)
prevent current flow
d)
allow heat to build up
15.
What is the shape of a carbon film resistor?
a)
cylindrical
b)
round
c)
square
d)
bone
16.
Current is measured in\:
a)
volts
b)
amps
c)
ohms
d)
watts
17.
Which resistor will prevent the most current flow?
a)
1 ohm
b)
100 ohms
c)
1000 ohms
d)
0.5k ohms
18.
How does resistance affect current?
a)
less resistance - less current
b)
more resistance - less current
c)
more resistance - more current
d)
resistance does not affect current
19.
What are power resistors used for?
a)
As general purpose resistors
b)
To obtain an exact value of resistance
c)
Vary a circuit's power rating
d)
Control large amounts of current
20.
What are the color codes for a 210 ohm resistor?
a)
brown, grey, red
b)
brown, black, yellow
c)
red, brown, brown
d)
brown, black, brown
21.
How is the value of resistance marked on a precision resistor?
a)
printed
b)
color bands
c)
number/letter code
d)
military specification code
22.
What are rheostats used for?
a)
Control large amounts of heat
b)
Vary large amounts of current
c)
Control of a circuit's power rating
d)
Vary a circuit's tolerance
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