Unit 1: Pneumatic and Hydraulic Systems - Grade 9 (QUIZ)

Revision Quiz

What does a pneumatic system use to induce movement?

Liquid Solid materials Compressed air or gas Electricity

What does a hydraulic system use to transmit power?

Compressed air Liquids (usually oil or water) Solid materials Steam

Which of the following is an example of a pneumatic system?

Hydraulic crane Dental drill Motor’s braking system Car engine

Which of the following is an example of a hydraulic system?

Air brakes in trucks Air-powered drill Hydraulic crane Pneumatic pressure pump

What is the main difference between pneumatic and hydraulic systems?

Pneumatic systems use liquids, while hydraulic systems use air Pneumatic systems use air, while hydraulic systems use liquids Both systems use the same medium Hydraulic systems are less powerful

Why are hydraulic systems more efficient than pneumatic systems?

Liquids are compressible and easy to store Liquids are incompressible, transmitting greater force Air is safer to use in all situations They require no maintenance

How does a hydraulic braking system in a car work?

The brake pedal releases air to slow the car The brake pedal pushes fluid to compress the brake pads Compressed air slows the brake disc The brake disc uses solid force to stop the car

What is one advantage of a pneumatic system over a hydraulic one?

Higher power transmission Non-flammability and low maintenance Precise control of heavy loads Efficiency in high temperatures

Which system would you recommend for a high-temperature factory environment?

Hydraulic, as it handles heat well Pneumatic, as air is non-flammable Both are equally suitable Neither, as they are unsafe in heat

When are hydraulic systems preferred over pneumatic ones?

For lighter and faster movements When high power and precise control are needed For minimal energy use For high-temperature environments