EV 1

From where tractive effort is generated in EV

• Battery

• Converter

• Driving Shaft

• Motor

It is difficult to use ultracapacitors alone as an energy storage for EVs and HEVs because of their

• high specific energy density and the dependence of voltage on the SOC

• low specific energy density and the dependence of voltage on the SOC

• low specific energy density and the independence of voltage on the SOC

• high specific energy density and the independence of voltage on the SOC

In which year battery powered carriage was developed

• 1874

• 1889

• 1857

• 1850

The Fuel Cell provides __________ energy but ________ power

• High, Low

• modest, modest

• modest, low

• low, low

Gradeability is defined as the maximum ________ angle that the vehicle can overcome in the whole speed range

• grade

• raise

• slope

• plane

When a vehicle goes up or down a slope, its weight produces a component of force that is always directed _________

• upwards

• downwards

• left ways

• right ways

Permanent magnet motors with sinusoidal air gap flux distribution are called

• Permanent Magnet Synchronous Motors

• Brushless DC motors

• Brushless AC motors

• Permanent Magnet induction Motors

The series parallel hybrid systems are classified into two categories ________ & the ________

• Fuel Cell dominated; petrol engine dominated

• ICE dominated; Electrical Motor dominated

• Hydrogen cell dominated; petrol engine dominated

• Hydrogen cell dominated; gas engine dominated

Which strategy is not used in Energy management strategy system

• Optimization based

• Rule based

• Global optimization strategy

• Regression method

The rolling resistance of tires on hard surfaces is due to __________ in the tire material

• Hysterisis

• Breakdown

• elasticity

• flexibility