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WorksheetsTechnology Revision Term 3 and 4 Set 1
Total questions: 58
Worksheet time: 29mins
Name
Class
Date
1.
What is the unit of measurement for current?
a)
Volt
b)
Ampere
c)
Ohm
d)
Watt
2.
Which component allows current to flow in one direction only?
a)
Resistor
b)
Capacitor
c)
Diode
d)
Transistor
3.
What does LED stand for?
a)
Light Emitting Diode
b)
Light Enhancing Device
c)
Low Energy Diode
d)
Light Emitting Device
4.
Which of the following is NOT a thermoplastic?
a)
PET
b)
HDPE
c)
PVC
d)
Thermosetting polymer
5.
What is the purpose of the Resistor Color Code?
a)
To make resistors look colorful
b)
To indicate the resistance value
c)
To show the manufacturing date
d)
To identify the manufacturer
6.
Which of the following is a characteristic of thermoplastics?
a)
Can be moulded only once
b)
Cannot be reshaped when heated
c)
Can be moulded again and again
d)
Always opaque
7.
What does PET stand for in plastic recycling?
a)
Polyethylene Terephthalate
b)
Polyester Tetrafluoroethylene
c)
Polyethylene Tetrachloride
d)
Polystyrene Ethylene Terephthalate
8.
Which of the following is NOT a method of food preservation?
a)
Pickling
b)
Drying
c)
Salting
d)
Rusting
9.
What causes rust?
a)
Exposure to sunlight
b)
Chemical reaction between metal and oxygen
c)
Exposure to cold temperatures
d)
Contact with plastic
10.
Which of the following is a way to prevent rust?
a)
Exposing metal to water
b)
Scraping off the outer layer
c)
Painting
d)
Heating the metal
11.
What is the function of a transistor in an electronic circuit?
a)
To store electric charge
b)
To emit light
c)
To act as a switch or amplify current
d)
To resist current flow
12.
Which plastic type is commonly used for beverage bottles?
a)
PVC
b)
HDPE
c)
PET
d)
PS
13.
What is the main advantage of using LEDs as indicating devices?
a)
They are very large
b)
They consume a lot of power
c)
They give off a lot of heat
d)
They consume very little current
14.
Which of the following is a characteristic of thermosetting plastics?
a)
Can be reshaped multiple times
b)
Low heat resistance
c)
High tensile strength
d)
Soft and flexible
15.
What does LDR stand for?
a)
Light Detecting Resistor
b)
Light Dependent Resistor
c)
Laser Diode Receptor
d)
Low Density Resistor
16.
Which of the following is NOT a method of plastic disposal?
a)
Reduce
b)
Reuse
c)
Recycle
d)
Reproduce
17.
What is the function of a capacitor in an electronic circuit?
a)
To amplify current
b)
To store electric charge
c)
To emit light
d)
To resist current flow
18.
Which plastic type is commonly used for plumbing pipes?
a)
PET
b)
HDPE
c)
PVC
d)
PP
19.
What is the purpose of galvanizing metal?
a)
To make it more flexible
b)
To prevent rust
c)
To increase its weight
d)
To make it magnetic
20.
Which of the following is a ferrous metal?
a)
Copper
b)
Aluminum
c)
Iron
d)
Gold
21.
What is the function of a diode in an electronic circuit?
a)
To allow current flow in both directions
b)
To allow current flow in one direction only
c)
To resist current flow
d)
To store electric charge
22.
Which plastic type is commonly used for plastic bags?
a)
PET
b)
HDPE
c)
PVC
d)
LDPE
23.
What is the main advantage of powder coating over traditional painting?
a)
It's cheaper
b)
It's faster to apply
c)
It provides a more durable finish
d)
It's easier to remove
24.
Which of the following is NOT a type of logic gate?
a)
AND
b)
OR
c)
NOT
d)
IF
25.
What is the function of a thermistor in an electronic circuit?
a)
To emit light
b)
To store charge
c)
To change resistance with temperature
d)
To amplify current
26.
Which plastic type is commonly used for foam packaging?
a)
PET
b)
HDPE
c)
PS
d)
PP
27.
What is the main purpose of electroplating?
a)
To increase the size of the metal
b)
To decrease the weight of the metal
c)
To improve the appearance or durability of the metal
d)
To make the metal magnetic
28.
Which of the following is NOT a method of food preservation?
a)
Pickling
b)
Drying
c)
Heating
d)
Rusting
29.
What is the function of a buzzer in an electronic circuit?
a)
To store charge
b)
To resist current flow
c)
To produce sound
d)
To emit light
30.
Which plastic type is commonly used for detergent bottles?
a)
PET
b)
HDPE
c)
PVC
d)
PP
31.
What is the main purpose of a silo in agriculture?
a)
To plant crops
b)
To harvest crops
c)
To store grain
d)
To process grain
32.
Which of the following is a characteristic of an LED?
a)
High power consumption
b)
High heat emission
c)
Low current consumption
d)
Allows current flow in both directions
33.
What does HDPE stand for in plastic recycling?
a)
High Density Polyethylene
b)
Hard Density Plastic Element
c)
Heavy Duty Polyester
d)
Highly Durable Plastic Enclosure
34.
Which method of rust prevention involves dipping the metal in molten zinc?
a)
Painting
b)
Powder coating
c)
Galvanizing
d)
Electroplating
35.
What is the main function of a resistor in an electronic circuit?
a)
To store charge
b)
To allow current flow in one direction
c)
To limit or control current flow
d)
To amplify current
36.
Which plastic type is commonly used for medicine bottles?
a)
PET
b)
HDPE
c)
PVC
d)
PP
37.
What is the main advantage of canning as a food preservation method?
a)
It's the cheapest method
b)
It preserves food for a very long time
c)
It enhances the flavor of the food
d)
It keeps the food fresh indefinitely
38.
Which of the following is NOT a type of transistor?
a)
NPN
b)
PNP
c)
LDR
d)
BJT
39.
The following is an image of what component?
a)
Diode
b)
Lamp
c)
Capacitor
d)
Resistor
40.
The following is an image of what component?
a)
Light Emitting Diode
b)
Lamp
c)
Diode
d)
Lights
41.
The following is an image of what component?
a)
Light Emitting Diode
b)
Lamp
c)
Diode
d)
Lights
42.
The following is an image of what component?
a)
Thermostat
b)
Resistor
c)
Light Emitting Diode
d)
Light Dependent Resistor
43.
The following is an image of what component?
a)
Colour Bands
b)
Fuse
c)
Resistors
d)
LDR
44.
The following is an image of what component?
a)
Button
b)
Push Button Switch
c)
Switch
d)
Danger
45.
The following is an image of what component?
a)
Single Pole Singe Throw Switch
b)
Double Throw Single Pole Switch
c)
Single Throw Double Pole Switch
d)
Double Throw Double Pole Switch
46.
The following is an image of what component?
a)
Single Pole Singe Throw Switch
b)
Double Throw Single Pole Switch
c)
Single Pole Double Throw Switch
d)
Double Throw Double Pole Switch
47.
The following is an image of what component?
a)
Single Pole Singe Throw Switch
b)
Double Pole Double Throw Switch
c)
Single Pole Double Throw Switch
d)
Double Throw Double Pole Switch
48.
The following is an image of what component?
a)
LED
b)
LAMP
c)
LDR
d)
SPDT
49.
The following is an image of what component?
a)
Button
b)
Black Box
c)
Buzzer
d)
Sound Emitting Diode
50.
The following is an image of what component?
a)
Matches
b)
Resistors
c)
Capacitor
d)
Thermistor
51.
The following is the IEC symbol for what component?
a)
Diode
b)
Lamp
c)
Capacitor
d)
Resistor
52.
The following is the IEC symbol for what component?
a)
Light Emitting Diode
b)
Lamp
c)
Diode
d)
Lights
53.
The following is the IEC symbol for what component?
a)
Light Emitting Diode
b)
Lamp
c)
Diode
d)
Lights
54.
The following is the IEC symbol for what component?
a)
Thermostat
b)
Resistor
c)
Light Emitting Diode
d)
Light Dependent Resistor
55.
The following is the IEC symbol for what component?
a)
Colour Bands
b)
Fuse
c)
Resistor
d)
LDR
56.
The following is the IEC symbol for what component?
a)
Button
b)
Push Button Switch
c)
Switch
d)
Danger
57.
The following is the IEC symbol for what component?
a)
Single Pole Singe Throw Switch
b)
Double Throw Single Pole Switch
c)
Single Throw Double Pole Switch
d)
Double Throw Double Pole Switch
58.
The following is the IEC symbol for what component?
a)
Single Pole Singe Throw Switch
b)
Double Throw Single Pole Switch
c)
Single Pole Double Throw Switch
d)
Double Throw Double Pole Switch
Reset
