Technician A says that a DC-to-DC converter is used to convert 12 ...

[arivle123]

Technician A says that a DC-to-DC converter is used to convert 12 volts from the battery to a higher voltage to run the electric motor(s) in a hybrid electric vehicle. Technician B says that a DC-to-DC converter is used to convert the voltage from the motor/generator to a higher voltage to charge the high voltage batteries. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

Question 2

Technician A says that a traction (AC synchronous) motor used in a hybrid electric vehicle is controlled by varying the voltage to the motor. Technician B says that the frequency of the current is controlled. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

[robbielu01]

Answer to Question 1

D

Answer to Question 2

C

[arivle123]

Thank you

[robbielu01]

No problem