WorksheetsTechnology Revision Term 3 and 4 Set 3
Total questions: 38
Worksheet time: 19mins
Name
Class
Date
1.
What is the main function of a Zener diode?
a)
To amplify current
b)
To regulate voltage
c)
To store charge
d)
To resist current flow
2.
Which of the following is NOT a method of food preservation?
a)
Freezing
b)
Dehydration
c)
Fermentation
d)
Oxidation
3.
What does PP stand for in plastic recycling?
a)
Polyethylene Propionate
b)
Polypropylene
c)
Plastic Polymer
d)
Polyvinyl Propylene
4.
Which component in an electronic circuit resists the flow of current?
a)
Capacitor
b)
Diode
c)
Resistor
d)
Transistor
5.
What is the main function of an OR gate in digital logic?
a)
It outputs 1 only if all inputs are 1
b)
It outputs 1 if any input is 1
c)
It inverts the input
d)
It performs multiplication
6.
Which plastic type is commonly used for plastic pipes?
a)
PET
b)
HDPE
c)
PVC
d)
PS
7.
What is the main disadvantage of salting as a food preservation method?
a)
It's expensive
b)
It destroys nutrients
c)
It changes the taste of food significantly
d)
It doesn't work for all types of food
8.
Which of the following is a characteristic of an NPN transistor?
a)
Current flows from emitter to collector
b)
Base must be positive relative to emitter
c)
It has two P-type semiconductors
d)
It's only used in analog circuits
9.
What is the main purpose of a grain pit?
a)
To plant crops
b)
To process grain
c)
To store grain
d)
To transport grain
10.
Which plastic recycling code represents PP?
a)
3.0
b)
4.0
c)
5.0
d)
6.0
11.
What is the main function of a non-polarized capacitor?
a)
To amplify current
b)
To store charge without polarity concerns
c)
To convert DC to AC
d)
To resist current flow
12.
Which method of rust prevention involves applying a thin layer of oil?
a)
Painting
b)
Powder coating
c)
Galvanizing
d)
Oiling
13.
What is the main advantage of using CFL lighting?
a)
High power consumption
b)
Short lifespan
c)
Energy efficiency
d)
High heat emission
14.
Which plastic type is commonly used for bottle caps?
a)
PET
b)
HDPE
c)
PVC
d)
PP
15.
What is the main function of a photodiode?
a)
To emit light
b)
To detect light
c)
To amplify current
d)
To store charge
16.
Which of the following is NOT a type of food preservation?
a)
Pickling
b)
Canning
c)
Fermenting
d)
Corroding
17.
What is the unit of measurement for resistance?
a)
Ampere
b)
Volt
c)
Ohm
d)
Watt
18.
Which component changes resistance with temperature?
a)
Capacitor
b)
Diode
c)
Thermistor
d)
Transistor
19.
What does LED stand for?
a)
Light Emitting Detector
b)
Light Enhancing Diode
c)
Light Emitting Diode
d)
Low Energy Device
20.
Which of the following is a characteristic of HDPE plastic?
a)
Transparent
b)
Soft and flexible
c)
Stiff and strong
d)
Highly heat sensitive
21.
What is the main function of a voltage regulator?
a)
To amplify current
b)
To maintain a constant voltage level
c)
To store charge
d)
To resist current flow
22.
Which plastic recycling code represents PET?
a)
1.0
b)
2.0
c)
3.0
d)
4.0
23.
What is the main advantage of freezing as a food preservation method?
a)
It enhances flavor
b)
It's the cheapest method
c)
It maintains food texture
d)
It kills all bacteria
24.
Which of the following is NOT a micro-organism that causes food spoilage?
a)
Bacteria
b)
Mold
c)
Yeast
d)
Virus
25.
What is the main purpose of anodizing aluminum?
a)
To increase conductivity
b)
To decrease weight
c)
To improve corrosion resistance
d)
To increase flexibility
26.
Which type of plastic is commonly used for detergent bottles?
a)
PET
b)
HDPE
c)
PVC
d)
PS
27.
What is the function of a NAND gate in digital logic?
a)
It outputs 0 only if all inputs are 1
b)
It outputs 1 if any input is 1
c)
It inverts the input
d)
It performs division
28.
Which of the following is a non-ferrous metal?
a)
Iron
b)
Steel
c)
Copper
d)
Cast iron
29.
What does BJT stand for in transistor types?
a)
Bipolar Junction Transistor
b)
Binary Junction Transmitter
c)
Base Junction Technology
d)
Bilateral Joined Transformer
30.
Which plastic type is commonly used for milk jugs?
a)
PET
b)
HDPE
c)
PVC
d)
PP
31.
What is the main function of a relay in an electrical circuit?
a)
To amplify current
b)
To store charge
c)
To control a circuit by a separate circuit
d)
To convert AC to DC
32.
Which method of food preservation involves adding sugar?
a)
Drying
b)
Freezing
c)
Pickling
d)
Candying
33.
What is the main advantage of thermosetting plastics?
a)
Can be easily recycled
b)
High heat resistance
c)
Low tensile strength
d)
Highly flexible
34.
Which of the following is NOT a method of preventing food spoilage?
a)
Refrigeration
b)
Dehydration
c)
Pasteurization
d)
Fermentation
35.
What does PS stand for in plastic recycling?
a)
Polyethylene Sulfide
b)
Plastic Styrene
c)
Polystyrene
d)
Pressurized Synthetic
36.
Which component in an electronic circuit allows current flow in only one direction?
a)
Resistor
b)
Capacitor
c)
Diode
d)
Transistor
37.
What is the main function of a XOR gate in digital logic?
a)
It outputs 1 only if all inputs are 1
b)
It outputs 1 if any input is 1
c)
It outputs 1 if inputs are different
d)
It performs addition
38.
Which plastic type is commonly used for food wrap?
a)
PET
b)
HDPE
c)
PVC
d)
LDPE
100 %
