1. When was first practical power steering invented?
a) 1820
b) 1760
c)1920
d) 1926
Explanation: The first practical power steering invented in the year 1926. The need of power steering emerged greatly during the time war, when there was need of driving heavy military vehicles which needed a lot of force while steering it with normal steering systems.
2. What is the frictional force in a braking system if the brake pads offer a normal force of 20Newton and the coefficient of friction is 0.4?
a) 4Newton
b) 8Newton
c) 2Newton
d) 40Newton
Explanation: 8Newton is the frictional force in a braking system if the brake pads offer a normal force of 20Newton and the coefficient of friction is 0.4.
Given,
Normal force=20Newton
Coefficient of friction=0.4
Frictional force=Normal force*Coefficient of friction
Frictional force=20*0.4=8Newton
Explanation: Active transducers do not require and additional power source for converting the energy from one form to another as they work on the principle of energy conversion. One such example of active transducer is thermocouple.
3. What is the full form of EHPS with respect to vehicle dynamics?
a) Electric-hydro power steering
b) Electro-hydraulic power steering
c) Electro-hydraulic pulse steering
d) Electro-hydraulic power system
Explanation: EHPS with respect to vehicle dynamics stands for Electro-hydraulic power steering. It uses hydraulic systems for assisting the driver of the vehicle. It acts as a power steering and helps the driver to easily turn the vehicle in the desired way.
4. When was first calliper-type disc brakes patented?
a) 1902
b) 1800
c) 1945
d) 1850
Explanation: The first calliper-type disc brakes patented in the year 1902. It was patented by Frederick William Lanchester in his birmingham factory. It was first tested on the lanchester cars.
5. What is the frictional force in a braking system if the brake pads offer a normal force of 10Newton and the coefficient of friction is 0.4?
a) 4Newton
b) 8Newton
c) 2Newton
d) 40Newton
Explanation: Given,
Normal force = 10Newton
Coefficient of friction = 0.4
Frictional force = Normal force * Coefficient of friction
Frictional force = 10*0.4 = 4Newton
6. What is the frictional force in a braking system of a truck if the drum brake pads offer a normal force of 30Newton and the coefficient of friction at the area of contact is 0.5?
a) 4Newton
b) 7.5Newton
c) 15Newton
d) 40Newton
Explanation: Given,
Normal force=30Newton
Coefficient of friction at the area of contact=0.5
Frictional force = Normal force * Coefficient of friction
Frictional force=30*0.5=15Newton.
7. What is the full form of MDPS with respect to vehicle dynamics?
a) Motor driven pulse steering
b) Motor driven power steering
c) Multi driving power steering
d) Motor driven power system
Explanation: MDPS with respect to vehicle dynamics stands for Motor driven power steering. It uses an electric motor for assisting the driver of the vehicle. It acts as a power steering and helps the driver to easily turn the vehicle in the desired way.
8. Volvo XC90 has automatic braking system.
a) True
b) False
Explanation: Volvo XC90 has automatic braking system. It contains systems that detects the presence of vehicles or objects and apply brakes when they come too close to the car and can be threat.
9. Which is not a self driving car?
a) Tesla Model S
b) NEXT TWO
c) Renault duster
d) Nissan LEAF
Explanation: Renault duster is not a self driving car. Tesla Model S is self driving car made by the company Tesla. NEXT TWO is self driving car made by the company Renault. Nissan LEAF is self driving car made by the company Nissan.
10. What is the frictional force in a braking system of a car if the disc brake pads offer a normal force of 15Newton and the coefficient of friction at the area of contact is 0.5?
a) 4Newton
b) 7.5Newton
c) 2Newton
d) 40Newton
Explanation: Given,
Normal force=15Newton
Coefficient of friction = 0.5
Frictional force = Normal force * Coefficient of friction
Frictional force=15*0.5=7.5Newton