Session 1: Brake and Its Maintenance
Unit 9: Maintenance of Brakes
Textual Question-Answers
Check Your Progress
A. Fill in the blanks
1. ———————— fluid is used for hydraulic brakes of thevehicle.
Ans: Brake fluid
2. Brake fluid should be changed ——————— in a year.
Ans: once
3. ———————— is a special type of brake, designed to assistthe normal braking system.
Ans: Vacuum servo brake
4. Bleeding operation can also be carried out with the help of ———————
Ans: vacuum pump
5. ———————— is the reason for spongy brake.
Ans: air in brake lines
B. Multiple choice questions
1. Mechanical brakes operate mechanically by using ———————(a) cam
(b) follower
(c) piston
(d) None of the above
Ans: (a) cam
2. How can a vehicle be stopped in shortest possible distance andwithout skidding the vehicle?
(a) With brake
(b) By friction
(c) By changing gears
(d) With clutch
Ans: (a) With brake
3. Which is not a type of brake?
(a) Mechanical
(b) Hydraulic
(c) Vacuum servo
(d) Rolling
Ans: (d) Rolling
4. Brakes which are assisted to work on compressed air are called————————
(a) pneumatic brakes
(b) hydraulic brakes
(c) vacuum servo brakes
(d) disc brakes
Ans: (a) pneumatic brakes
5. Brakes which are operated by the pressure on hydraulic fluid arecalled ——————
(a) hydraulic brakes
(b) pneumatic brakes
(c) vacuum servo brakes
(d) mechanical brake
Ans: (a) hydraulic brakes
C. Answer the following questions
1. Why are vehicle brakes necessary?
Ans: Vehicle brakes are necessary to slow down or stop the vehicle safely, control speed, prevent accidents, ensure passenger safety, and maintain propercontrol of the vehicle under all driving conditions.
2. What are the steps to be followed while servicing mechanical brakes?
Ans: The steps include lifting the vehicle safely, removing the wheel andbrake drum, cleaning brake components, checking brake shoes and linkagefor wear, adjusting brake clearance, lubricating moving parts, refittingcomponents, and testing brake operation.
3. What are the steps to be followed while servicing parking brakes?
Ans: The steps include checking the parking brake lever or pedal operation, inspecting cables and linkages, adjusting cable tension, lubricating movingparts, checking brake holding efficiency, and finally testing the parking brakeon a slope.
