20EE2001 - Class Test 2

The regenerative braking effect drops off at low speeds.

• True

• False

It is well known that the more aerodynamic a vehicle is, the ___ is its energy consumption.

In regenerative braking the motor energy is returned to the supply mains

• True

• False

A __ coefficient of aerodynamic drag is very important for high-speed vehicles.

_______ is defined as the force at the rims or the outer edges of the driving wheels of moving trains.

• Tractive Effort

• Simeon Effort

• Emulator Effect

In the expression of the aerodynamic drag force(Fad), Cd indicates ____ coefficient.

• Co-efficient of coupling

• De-coupling co-efficient

• Drag Coefficient

If the μrr is 0.015,m=1500Kg, g=9.81m/s2 and v=100km/h, calculate the rolling drag Frr

• 220.725N

• 200.725N

• 2200.725N

For an Electric Vehicle (EV), if the gear ratio (G) is 6, total tractive effort is 30N and radius of the tyre is 10 m, find the motor torque.

• 50 N-m

• 100 N-m

• 150 N-m

The Popular Driving Cycle ‘FUDS’ stands for ___________.

• Aerodynamic Drag

• Rolling Resistance

• Hill Climbing Force

• Linear Acceleration