Class 12 Automotive Chapter 4 Suspension System

Class 12 Automotive Chapter 4 Suspension System 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 12 Automotive Chapter 4 Suspension System Question Answer and select need one. Class 12 Automotive Chapter 4 Suspension System Notes Download PDF. AHSEC Class 12 Elective Automotive Question Answer English Medium.

Class 12 Automotive Chapter 4 Suspension System

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. AHSEC Class 12 Elective Automotive Textual Solutions are part of All Subject Solutions. Here we have given AHSEC Class 12 Automotive Textbook Solutions English Medium for All Chapters, You can practice these here.

Suspension System

Chapter: 4

SESSION 1: OVERHAULING OF CLUTCH

Check Your Progress

A. Fill in the blanks:

1. Maintenance of the vehicle’s suspension system is crucial for both safety and ___________ performance. 

Ans: Optimum.

2. Suspension check-ups are important as they ensure the proper ___________ of tyres with the road surface. 

Ans: Contact.

3. Suspension parts are often made of rubber to minimize shocks, hence regular checks for wear and ___________ are necessary. 

Ans: Tear.

4. One of the functions of the suspension system is to maintain the correct vehicle ___________ height.   

Ans: Ride.

B. Multiple Choice Questions: 

1. What are the basic components of a vehicle’s suspension system? 

(a) Steering wheel and brakes. 

(b) Engine and transmission. 

(c) Struts, shock absorbers, springs, and tyres. 

(d) Exhaust system and radiator. 

Ans: (c) Struts, shock absorbers, springs, and tyres.

2. What is the primary function of shock absorbers and struts in a vehicle’s suspension system? 

(a) Generating power for the engine. 

(b) Maintaining tyre pressure. 

(c) Ensuring smooth rolling of wheels. 

(d) Keeping the tyres evenly connected with the road. 

Ans: (d) Keeping the tyres evenly connected with the road.

3. Which of the following is NOT a function of a vehicle’s suspension system? 

(a) Maintaining correct wheel alignment. 

(b) Supporting the vehicle’s driving stability. 

(c) Adjusting the vehicle’s audio system. 

(d) Keeping the vehicle’s tyres in contact with the road.

Ans: (c) Adjusting the vehicle’s audio system. 

4. What should be regularly checked for wear, tear, and torn in a suspension system? 

(a) Engine oil level.

(b) Rubber parts. 

(c) Brake fluid quality. 

(d) Exhaust emissions. 

Ans: (b) Rubber parts.   

C. Answer the following questions:

1. Why is suspension system required in a vehicle? 

Ans: Automotive suspension system is made up of four basic components namely the struts, shock absorbers, springs and tyres. Shock absorbers and struts are important for on road safety. They ensure that the tyres are evenly connected with the road and a vertical load is applied over the tyres. The shock absorbers on a vehicle go through as many as one thousand movements per kilometre so it is not surprising that they wear out quite quickly and should be checked every 20,000 kilometres during major servicing. The springs support the weight of the vehicle and act as a flexible link that allows the body and frame to ride with minimal disturbance, while the tyres and suspension follow the road pattern.

2. Name different components of a suspension system?

Ans: Automotive suspension system is made up of four basic components namely the struts, shock absorbers, springs and tyres.

3. Make a list of maintenance tips for suspension system.

Ans: (i) Thoroughly clean the leaf spring set and its fittings.

(ii) With the help of grease or pneumatic grease gun, lubricate all shackle pins, swing arm of the leaf spring set.

(iii) Lubricate each leaf with graphite grease.

(iv) Tighten the u clamp bolts /nuts with specified torque.

(v) Check the centre bolt.

(vi) Tighten the clamp nut bolt with specified torque.

(vii) Check the slackness of the shackle and tighten the set if needed.

(viii) In case of shock absorber/stud, tighten the holding nuts and bolts at both ends.

(ix) In case of a two-wheeler, tighten the swinging of nuts/bolts of the front and rear wheels.

(x) Avoid overloading the vehicle.

(xi) Avoid sudden acceleration and breaking.

SESSION 2: SERVICE AND REPLACEMENT OF LEAF SPRING SET

Check Your Progress

A. Fill in the blanks: 

1. The leaf spring acts as a linkage for holding the ______________ in position and thus separate linkages are not necessary. 

Ans: Axle.

2. The process of hammering the leaf throughout its length to achieve a desired angle is known as ______________. 

Ans: Cambering.

3. The spring shackle allows for movement of the suspension by pulling in or pushing out as the suspension travels through its up and down ______________. 

Ans: Cycle.

4. The shackle takes up the tendency of the leaf spring to elongate when compressed, making the suspension’s springiness ______________.

Ans: Softer.

B. Multiple Choice Questions: 

1. What is the purpose of a leaf spring in wheeled vehicles? 

(a) To provide steering control.

(b) To hold the chassis together. 

(c) To absorb engine vibrations. 

(d) To support the suspension. 

Ans: (d) To support the suspension.

2. In leaf springs, what is the primary function of interleaf friction? 

(a) Enhancing steering responsiveness. 

(b) Providing damping action. 

(c) Reducing tyre wear. 

(d) Increasing ground clearance. 

Ans: (b) Providing damping action. 

3. What is the purpose of a shackle in a leaf spring suspension? 

(a) To provide additional ground clearance. 

(b) To connect the axle to the chassis. 

(c) To improve engine performance. 

(d) To enhance braking efficiency. 

Ans: (b) To connect the axle to the chassis.

4. The device that allows a leaf spring to flex and move while keeping the tyre on the road is called: 

(a) Axle pin. 

(b) Leaf holder. 

(c) Spring lock. 

(d) Spring shackle.   

Ans: (d) Spring shackle.

SESSION 3: REPLACEMENT OF STRUT/ SHOCK ABSORBERS,INSPECTION OF STEERING LINKAGES

Check Your Progress

SESSION 4: INSPECTION OF STEERING LINKAGE

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SESSION 5: MANUAL AND POWER STEERING SYSTEM

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SESSION 6: STEERING SYSTEM ADJUSTMENTS

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