Introduction of EV and HEVs

Answer the following statements in True/False.

A) IC engine is a highly efficient device.

B) Hydrogen has high energy density than petrol.

C) CNG has lower specific energy than petrol.

• A)-True, B)-False, C)-True

• A)-False, B)-True, C)- False

• A)-False, B)-False, C)-True

• A)-True, B)-False, C)-False

Match the following

• A)-ii), B)-i), C)-iii)

• A)-iii), B)-i), C)-ii)

• A)-ii), B)-iii), C)-i)

• A)-i), B)-iii), C)-ii)

Answer the following statements in True/False.

A) Parallel HEV requires only one power converter.

B) Ultra flywheel is a mechanical device.

C) Fast charging requires a very less power charging source.

• A)-True, B)-True, C)-False

• A)-True, B)-False, C)-False

• A)-False, B)-True, C)-True

• A)-False, B)-True, C)-False

What is the HEV configuration given in the figure below?

• Parallel HEV (Braking)

• ICE Heavy series parallel HEV (Braking)

• Electric Heavy series parallel HEV (Battery charging during driving)

• Electric Heavy series parallel HEV (Deceleration)

Match the following.

• A)-i), B)-ii), C)-iii), D)-iv)

• A)-iv), B)-iii), C)-ii), D)-i)

• A)-ii), B)-iv), C)-i), D)-iii)

• A)-ii), B)-i), C)-iii), D)-iv)

Answer in True/False.

A) In High power motors, voltage is generally high

B) In fixed gear system, design of motor is very important.

C) Efficiency in variable gear system reduces than fixed gear system.

• A)-True, B)-False, C)-False

• A)-True, B)-True, C)-true

• A)-False, B)-False, C)-True

• A)-False, B)-True, C)-True

Answer in True/False.

A) In series HEV, battery cannot be charged at rest.

B) In parallel HEV, only ICE areis active during normal driving.

C) In Front hybrid rear electric complex HEV, whole system is active in acceleration mode.

• A)-True, B)-True, C)-False

• A)-False, B)-True, C)-False

• A)-True, B)-False, C)-True

• A)-False, B)-True, C)-True

Answer in True/False.

A) IC engines lose power even when idle.

B) In parallel HEV, maximum power is used at the starting.

C) Sun gear is connected to ICE.

• A)-True B)-True, C)-True

• A)-True, B)-True, C)-False

• A)-False, B)-True, C)-True

• A)-False, B)-True, C)-True

Answer in True/False.

A) In-wheel drives are high speed drives.

B) In fixed gear system, weight is less.

C) Differential action requirement can be fulfilled with two motors.

• A)-True B)-False, C)-False

• A)-True, B)-False, C)-True

• A)-False, B)-True, C)-False

• A)-False, B)-True, C)-True

What is meant by the term regeneration?

• It’s when electricity is generated during deceleration and braking

• It’s when the battery is charged during engine idling

• It’s when the battery is recharged from the mains supply

• It’s when the battery is recharged from backup battery source