Power windows are being discussed. Technician A says that when ...

[mmm]

Power windows are being discussed. Technician A says that when one control wire is disconnected all the power windows will fail to operate. Technician B says that a defective ground connection at the master control switch could cause the failure of all power windows. Who is right?
 
  A) Technician A only B) Technician B only
  C) Both technicians A and B D) Neither technician A nor B

Question 2

Technician A says that many power windows and power door locks use a reversible, permanent-magnet motor with a built-in circuit breaker. Technician B says that the control switches and relays direct the current through the motor(s). Who is right?
 
  A) Technician A only B) Technician B only
  C) Both technicians A and B D) Neither technician A nor B

[Mollythedog]

Answer to Question 1

B

Answer to Question 2

C