Class 11 Automotive Service Technician Chapter 9 Maintenance of Brakes

Class 11 Automotive Service Technician Chapter 9 Maintenance of Brakes Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters Class 11 Automotive Service Technician Question Answer and select need one. Class 11 Automotive Service Technician Notes Download PDF. AHSEC Class 11 Automotive Service Technician Question Answer English Medium.

Class 11 Automotive Service Technician Chapter 9 Maintenance of Brakes

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Class 11 Automotive Service Technician Chapter 9 Maintenance of Brakes Textual Solutions are part of All Subject Solutions. Here we have given AHSEC Class 11 Automotive Service Technician Textbook Solutions English Medium for All Chapters, You can practice these here.

Maintenance of Brakes

Chapter: 9

SESSION 1: BRAKE AND ITS MAINTENANCE

Check Your Progress

A. Fill in the blanks:

1. ______________ fluid is used for hydraulic brakes of the vehicle.

Ans: Hydraulic.

2. Brake fluid should be changed ______________ in a year.

Ans: Twice.

3. ______________ is a special type of brake, designed to assist the normal braking system.

Ans: Parking brake.

4. Bleeding operation can also be carried out with the help of ______________.

Ans: Pressure bleeder machine.

5. ______________ is the reason for spongy brake.

Ans: Air.

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 and without 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 are called ___________________.

(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: A brake is a mechanical device, which inhibits motion. Its opposite component is the clutch. Most commonly, brakes use friction to convert kinetic energy into heat, though other methods of energy conversion may be employed. Brakes are generally applied to rotating axles or wheels but may also take other forms, such as the surface of a moving fluid (flaps deployed into water or air). Some vehicles use a combination of braking mechanisms, such as drag racing cars with both wheel brakes and a parachute or airplanes with both wheel brakes and drag flaps raised into the air during landing.