Question 1

Tech A states valve bores cannot be measured. Tech B states that valve bores can be measured, but it is very difficult to do so accurately. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B B

Question 2

A vacuum reading of ________ of mercury on the vacuum testing fixture indicates a valve with no leakage.

Accepted Answer

A)  5" 
B)  10" 
C)  15" 
D)  25" 
A)  5" 
B)  10" 
C)  15" 
D)  25" D

Question 3

Tech A states that a soft rubber mat placed below the valve body will lead to inaccurate readings. Tech B states that a soft rubber mat placed below the valve body will help prevent the vacuum from leaking out. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B B

Question 4

Tech A states that valve bodies can be replaced with remanufactured units. Tech B states that valve bodies can be rebuilt in the shop using some specialized equipment. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 5

Choose the correct statement with respect to vacuum testing.

Accepted Answer

A)  The valve should be calibrated before testing. 
B)  The valve should be placed on a soft rubber mat to seal the ports. 
C)  The fittings in the pump are usually copper with plastic lines. 
D)  The fittings should be tightened with maximum force. 
A)  The valve should be calibrated before testing. 
B)  The valve should be placed on a soft rubber mat to seal the ports. 
C)  The fittings in the pump are usually copper with plastic lines. 
D)  The fittings should be tightened with maximum force.

Question 6

Choose the correct procedure to remove a valve or bore plug from a valve body in case all the other procedures fail.

Accepted Answer

A)  Mild heat can be applied to loosen the grip. 
B)  Install a self-tapping screw into an aluminum valve or bore plug and use vice grip pliers to pull it out. 
C)  Hammer the sides of the plug to bring it out. 
D)  Use heavy air pressure to push the valve out. 
A)  Mild heat can be applied to loosen the grip. 
B)  Install a self-tapping screw into an aluminum valve or bore plug and use vice grip pliers to pull it out. 
C)  Hammer the sides of the plug to bring it out. 
D)  Use heavy air pressure to push the valve out.

Question 7

On modern transmissions, some of the valves are operated by pulse-width-modulated solenoids. This causes the valves to:

Accepted Answer

A)  be stationary. 
B)  move when a transmission shift is needed. 
C)  move whenever the vehicle is in motion. 
D)  move when travelling on bumpy roads. 
A)  be stationary. 
B)  move when a transmission shift is needed. 
C)  move whenever the vehicle is in motion. 
D)  move when travelling on bumpy roads.

Question 8

Tech A states valve bores cannot be measured. Tech B states that valve bores can be measured, but it is very difficult to do so accurately. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 9

A valve is at less than 18" of mercury when tested in a vacuum tester. Tech A states that all valves below this value need to replaced. Tech B states that this value may vary based on each shop warranty policy. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 10

Tech A states that valve bodies made of cast iron experienced little wear. Tech B states that valve bodies made of cast iron failed frequently. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 11

Tech A states that all solenoids should be replaced in a valve body during an overhaul. Tech B states that the solenoids should be tested and cleaned thoroughly before reusing them. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 12

Tech A states that a warped valve body must be replaced. Tech B states that a warped valve body can be straightened out on a surface grinder. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 13

A vacuum tester is used to test the valve body of an engine. Tech A states that the valve body should be placed down onto the mat with the transmission case side of the valve body facing up. Tech B states that the transmission case side of the valve body should face down. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 14

Tech A states that forward abuse bore plug is a common wear item and should always be checked. Tech B states that a worn forward abuse bore plug can result in a burned low reverse clutch. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 15

A vacuum reading of ________ of mercury on the vacuum testing fixture indicates a valve or bore that is completely worn out and must be repaired.

Accepted Answer

A)  5" 
B)  10" 
C)  15" 
D)  25" 
A)  5" 
B)  10" 
C)  15" 
D)  25"

Question 16

Tech A states that most transmissions will only need the valve body cleaned during a rebuild. Tech B states that cast iron valve bodies are more prone to wear than aluminum ones. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 17

Identify the component shown in the given figure.

Accepted Answer

A)  Nickel coated valve body 
B)  Steel valve body 
C)  Aluminum valve body 
D)  Cast iron valve body 
A)  Nickel coated valve body 
B)  Steel valve body 
C)  Aluminum valve body 
D)  Cast iron valve body

Question 18

Tech A states that PCS solenoids should be cycled in clean automatic transmission fluid. Tech B states that there are pressure testing fixtures available for some transmissions. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 19

Tech A states that the vacuum testing fixture does not need calibration. Tech B states that the vacuum testing fixture needs to be calibrated before testing the valve body. Who is correct?

Accepted Answer

A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B 
A)  Tech A 
B)  Tech B 
C)  Both A and B 
D)  Neither A nor B

Question 20

When measuring resistance across a normally closed pressure switch, the reading should go:

Accepted Answer

A)  from close to zero to infinity. 
B)  down close to zero. 
C)  up to 10 ohms. 
D)  down to 0.5 ohms. 
A)  from close to zero to infinity. 
B)  down close to zero. 
C)  up to 10 ohms. 
D)  down to 0.5 ohms.

Exam 17: Valve Body and Electric Service

Tech A states valve bores cannot be measured. Tech B states that valve bores can be measured, but it is very difficult to do so accurately. Who is correct?

A vacuum reading of ________ of mercury on the vacuum testing fixture indicates a valve with no leakage.

Tech A states that a soft rubber mat placed below the valve body will lead to inaccurate readings. Tech B states that a soft rubber mat placed below the valve body will help prevent the vacuum from leaking out. Who is correct?

Tech A states that valve bodies can be replaced with remanufactured units. Tech B states that valve bodies can be rebuilt in the shop using some specialized equipment. Who is correct?

Choose the correct statement with respect to vacuum testing.

Choose the correct procedure to remove a valve or bore plug from a valve body in case all the other procedures fail.

On modern transmissions, some of the valves are operated by pulse-width-modulated solenoids. This causes the valves to:

Tech A states valve bores cannot be measured. Tech B states that valve bores can be measured, but it is very difficult to do so accurately. Who is correct?

A valve is at less than 18" of mercury when tested in a vacuum tester. Tech A states that all valves below this value need to replaced. Tech B states that this value may vary based on each shop warranty policy. Who is correct?

Tech A states that valve bodies made of cast iron experienced little wear. Tech B states that valve bodies made of cast iron failed frequently. Who is correct?

Tech A states that all solenoids should be replaced in a valve body during an overhaul. Tech B states that the solenoids should be tested and cleaned thoroughly before reusing them. Who is correct?

Tech A states that a warped valve body must be replaced. Tech B states that a warped valve body can be straightened out on a surface grinder. Who is correct?

A vacuum tester is used to test the valve body of an engine. Tech A states that the valve body should be placed down onto the mat with the transmission case side of the valve body facing up. Tech B states that the transmission case side of the valve body should face down. Who is correct?

Tech A states that forward abuse bore plug is a common wear item and should always be checked. Tech B states that a worn forward abuse bore plug can result in a burned low reverse clutch. Who is correct?

A vacuum reading of ________ of mercury on the vacuum testing fixture indicates a valve or bore that is completely worn out and must be repaired.

Tech A states that most transmissions will only need the valve body cleaned during a rebuild. Tech B states that cast iron valve bodies are more prone to wear than aluminum ones. Who is correct?

Identify the component shown in the given figure.

Tech A states that PCS solenoids should be cycled in clean automatic transmission fluid. Tech B states that there are pressure testing fixtures available for some transmissions. Who is correct?

Tech A states that the vacuum testing fixture does not need calibration. Tech B states that the vacuum testing fixture needs to be calibrated before testing the valve body. Who is correct?

When measuring resistance across a normally closed pressure switch, the reading should go:

Strategy-Based Diagnostics

Safety

Basic Tools and Precision Measuring

Fasteners and Thread Repair

Vehicle, Customer, and Service Information

Automatic Transmission Fundamentals

Transmission Components

Hydraulic Fundamentals

Torque Converter Principles

Hydraulically Controlled Transmission

Electronically Controlled Transmission

In-Vehicle Transmission Repairs

Transmission Removal

Transmission Disassembly

Hydraulic System Rebuilding

Gear Train Rebuilding

Transmission Reassembly

Transmission Reinstallation

Dual Clutch Transmissions

Continuously Variable Transmissions

Hybrid Transmissions

Honda Transmissions

Chrysler 6 Speed 62te Transmission

6t40 6f35 Transmission

Zf 9hp Chrysler 948te Transmission

Ford 6r60 Zf6hp26

Allison 1000 and 2000 Series Transmissions

Filters