EV QUIZ 3

To increase the output voltage, how cells are connected ?

• Parallel

• Series

• Mixed

• Depends on the requirement

What is the purpose of a BMS in an EV ?

• To control the electric motor

• To monitor and protect the battery cells

• To charge the auxiliary battery

• To manage the regenerative braking system

Which of the following is a key parameter monitored by the BMS ?

• Battery cell temperature

• Battery pack number

• Battery cell number

• Battery cell self discharging

What is the main cause of battery degradation in EV traction batteries ?

• Overcharging

• High ambient temperature

• Frequent deep discharges

• All of the above

What is the primary safety concern with lithium-ion batteries ?

• Overheating and thermal runaway

• Low energy density

• High self-discharge rate

• Poor performance in cold weather

What is the purpose of a thermal management system in an EV battery pack ?

• To increase energy density

• To maintain optimal battery temperature

• To reduce charging time

• To improve regenerative braking efficiency

What is the typical optimum operating temperature range for an EV traction battery ?

• -10°C to 10°C

• 10°C to 35°C

• 40°C to 60°C

• 70°C to 90°C

What is the primary purpose of cell balancing in an EV battery pack ?

• To ensure uniform voltage across all cells

• To increase energy density

• To reduce charging time

• To improve regenerative braking efficiency

What is the primary function of a Battery Management System (BMS) in an EV ?

• Charging the battery

• Monitoring battery voltage and temperature

• Providing power to the wheels

• Regulating motor speed

What is the purpose of battery cell balancing in a BMS ?

• Improve acceleration

• Protect the motor

• Ensure all cells have the same voltage

• Reduce battery size