Chapter 7 Array Science 8th Class Punjab MCQ Tests
8th Class Science Chapter 7 MCQ Tests
Chapter 7 of 8th Class Science has 15 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 15
Total Marks: 15
Time: 15 Mins
Total Questions: 15
Total Marks: 15
Time: 15 Mins
15Min : 00 Sec Remaining
Question # 1
The brake shoes or discs stops the wheel by _____ effect.
Question # 2
The diameter of a piston of a hydraulic press is 80 cm. How much force is required to lift a car weighing 3000 N on its piston if the diameter of that piston of pump is 2 cm?
Question # 3
Brakes in the car, hydraulic press and hydraulic lift are examples of _____.
Question # 4
Pressure of a given mass of an ideal gas is doubled at constant temperature. What will be the change in its volume?
Question # 5
For pressing the bales of cotton usually a system is used which is _____
Question # 6
Pressure of gases enclosed by the container is due to the_____.
Question # 7
mmHg is equals to _____atm.
Question # 8
Due to random collision of all gas molecules ____ of gas has been produced.
Question # 9
When any container filled with gas , all molecules start _____.
Question # 10
In a hydraulic brake system of a car, the force exerted on a piston of cross sectional area of 6 cm 2 is 550 N. What is the pressure transferred to the brake oil?
Question # 11
Question # 12
A block has sides measuring 20 cm, 40 cm and 50 cm. On which side should it be placed, so that the pressure is maximum?
Question # 13
Force applied on a unit area will be known as_____ having usually units \'atm\'.
Question # 14
A mechanical appliance which can work on _____principle is a hydraulic system.
Question # 15
A compressed gas have gas molecules which are squeezed together so they take up _____.
Total Questions
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Question # 1
The brake shoes or discs stops the wheel by _____ effect.
Question # 2
The diameter of a piston of a hydraulic press is 80 cm. How much force is required to lift a car weighing 3000 N on its piston if the diameter of that piston of pump is 2 cm?
Question # 3
Brakes in the car, hydraulic press and hydraulic lift are examples of _____.
Question # 4
Pressure of a given mass of an ideal gas is doubled at constant temperature. What will be the change in its volume?
Question # 5
For pressing the bales of cotton usually a system is used which is _____
Question # 6
Pressure of gases enclosed by the container is due to the_____.
Question # 7
mmHg is equals to _____atm.
Question # 8
Due to random collision of all gas molecules ____ of gas has been produced.
Question # 9
When any container filled with gas , all molecules start _____.
Question # 10
In a hydraulic brake system of a car, the force exerted on a piston of cross sectional area of 6 cm 2 is 550 N. What is the pressure transferred to the brake oil?
Question # 11
Question # 12
A block has sides measuring 20 cm, 40 cm and 50 cm. On which side should it be placed, so that the pressure is maximum?
Question # 13
Force applied on a unit area will be known as_____ having usually units \'atm\'.
Question # 14
A mechanical appliance which can work on _____principle is a hydraulic system.
Question # 15
A compressed gas have gas molecules which are squeezed together so they take up _____.
Total Questions
123456789101112131415
Science MCQ Test by Topics
- +7.1 Pressure, Force and Area
- +7.1.1 Units of Pressure (Nm2) or Pascal (Pa)
- +7.2 Water Pressure
- +7.3 Liquid Pressure in Closed Containers
- +7.4 Applications of Pascals Law - Hydraulic system
- +7.5 Gas Pressure in a Container
- +7.5.1 Pneumatics
- +7.6 Aerosols
- +7.7 Atmospheric Pressure
- +7.8 Ch_Summary
Science
8th Class Punjab MCQ Tests
8th Class Online Classes 2026
Updated on: 21-05-2026
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8th Class 2026 Online
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