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WorksheetsUnderstanding Power Boosters in Vehicle Braking Systems
Total questions: 1
Worksheet time: 13mins
1-10.
Answer the questions below after watching the video
What does a power booster use to amplify the driver's pedal effort?
Hydraulic fluid
Electricity
Gear mechanism
Vacuum
What is the primary function of the power booster in a vehicle's braking system?
To cool down the brake fluid
To multiply the driver's pedal effort
To signal the brakes to engage
To reduce the vehicle's speed
Why can't diesel engines use manifold vacuum for the power booster?
Diesel engines do not produce sufficient vacuum
Because they operate at higher temperatures
Due to the lack of an intake manifold
Because of higher emissions
Which vehicles are fitted with an engine-driven vacuum pump for the power booster?
Petrol engine vehicles
Diesel engine vehicles
Hybrid vehicles
Electric vehicles
What role does the control valve play in the operation of the power booster?
It regulates the vacuum level within the chambers
It filters the air entering the system
It admits air at atmospheric pressure to the rear of the unit
It activates the master cylinder push rod
What component separates the chambers within the power booster unit?
A vacuum seal
A plastic divider
A metal plate
A flexible rubber diaphragm
How is hydraulic pressure in the brake system initially generated?
By the master cylinder push rod moving forward
Through manual force applied by the driver
By electrical signals sent to the brakes
Using a hydraulic pump
What happens when the vacuum source to the power booster is interrupted?
More effort is needed to apply the brakes
Braking power is increased
The vehicle switches to regenerative braking
The brakes lock up automatically
What maintains the vacuum in the booster when the engine is off?
The intake manifold
An external vacuum reservoir
A battery-powered pump
The non-return valve
After the engine is switched off, how many power-boosted applications does the remaining vacuum in the booster provide?
None
Unlimited until the vacuum dissipates
At least one
Two
