Technician A says that a vacuum servo can be controlled electronically.Technician B says that when vacuum is released from a vacuum servo, the spring will push the diaphragm back to its starting position.Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

## Step 1<br />The problem involves understanding the operation of a vacuum servo. A vacuum servo is a type of servo that uses vacuum pressure to control the position of a diaphragm.<br /><br />## Step 2<br />Technician A's statement is that a vacuum servo can be controlled electronically. This is indeed true. The vacuum servo can be controlled by an electronic control unit (ECU), which can adjust the vacuum pressure to change the position of the diaphragm.<br /><br />## Step 3<br />Technician B's statement is that when vacuum is released from a vacuum servo, the spring will push the diaphragm back to its starting position. This is also true. When the vacuum pressure is released, the spring inside the servo will push the diaphragm back to its original position.<br /><br />## Step 4<br />Since both Technician A and Technician B's statements are correct, the answer is that both Technician A and Technician B are correct.