Describe various resistances on the motion of the vehicle.
What is the different classification of chassis used in automobiles? Explain.
A 2500 lb car is driven at maximum speed of 90 mph on level tarred surface at sea level. The car drag coefficient Cd=0.38C_d = 0.38Cd=0.38 and 20 ft220 \text{ ft}^220 ft2 frontal area. Air density at sea level is 0.002378 slug/ft30.002378 \text{ slug/ft}^30.002378 slug/ft3. What is the horsepower expanded at this maximum speed?
What do you understand by suspension system? What are the different forces acting on suspension system? State the working of shock absorber.
Why sway bar is used in vehicle? Explain the mechanism of sway bar with proper figure.
What do you mean by tubeless tyre and tube tyre? What are the advantages of tubeless tyre over tube tyre? Explain briefly.
What are the functions of chassis frame? Explain briefly.
What do you understand by tractive effort and resistance? What are the factors influence aerodynamic resistance of vehicle?
A vehicle having a mass of 750 kg750 \text{ kg}750 kg travelling at speed 50 km/h50 \text{ km/h}50 km/h up a gradient 1 in 10. The car has drag co-efficient Cd=0.35C_d = 0.35Cd=0.35 and 0.75 m20.75 \text{ m}^20.75 m2 frontal area. The air density is 1.2 kg/m31.2 \text{ kg/m}^31.2 kg/m3 and the co-efficient of the rolling resistance is 0.020.020.02. What is the total resistance of motion of the vehicle?
What are the functions of suspension system? How does the coil suspension system work?
What is the meaning of 15×6−JJ 114.3−4−3315 \times 6 - \text{JJ } 114.3 - 4 - 3315×6−JJ 114.3−4−33 wheel? Explain each term with proper figure.
What are the differences between bias and radial tire? Explain briefly.
What factors act on a suspension system? Explain how suspension system works. Why coil spring suspension used in cars and leaf springs in bus?
What is a sway bar. Why it is used?
How to read the wheel markings?
What are the differences between bias and radial tire?
What do you understand by automobile chassis? What are the main components of chassis? Differentiate between chassis and automobile body.
What is automobile frame? What are the functions of automobile frame?
The co-efficient of rolling resistance for a truck weighing 8000 kg is 0.02 and co-efficient for air resistance is 0.002. The area of the truck is 5.67 m25.67\text{ m}^25.67 m2. How much is the total resistance of the vehicle if the maximum speed is 75 km/hr?
What are the advantages of tubeless tyre? What is static and dynamic unbalance of a tyre?
What are the main causes of tire wear? Explain the effects of inflation pressure on tire wear.
Explain the working principle of power steering system with neat sketch.