Question 1

Technician A says that most bands are contracted by releasing fluid pressure from a servo. Technician B says that most bands are contracted by applying fluid pressure to a servo. Who is correct?

Accepted Answer

A)  Technician A 
B)  Technician B 
C)  Both technicians 
D)  Neither technician

Question 2

Technician A says that an orifice is responsible for controlling the flow of hydraulic fluid between the valve body and the transmission. Technician B says that the orifice is sometimes built into the transmission or even the separator plate. Who is correct?

Accepted Answer

A)  Technician A 
B)  Technician B 
C)  Both Technicians A and B 
D)  Neither Technician A nor B

Question 3

Which of the following additives prevent the internal parts of the transmission from developing rust and corrosion on metal components?

Accepted Answer

A)  Antifoam 
B)  Seal conditioners 
C)  Rust and corrosion inhibitors 
D)  Detergent

Question 4

In some transmissions, what fluid may boost converter pressure so that the torque converter clutch can be applied more firmly under moderate load conditions?

Accepted Answer

A)  Governor pressure 
B)  Throttle pressure 
C)  Line pressure 
D)  Lubrication pressure

Question 5

Tech A says that spring tension against a spool valve regulates system pressure. Tech B says that a 50% pulse width modulation means the valve is closed 50% of the time. Who is correct?

Accepted Answer

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

Question 6

The force created by a piston depends:

Accepted Answer

A)  only on the area of the piston. 
B)  only on the hydraulic pressure. 
C)  on both the area of the piston and the hydraulic pressure. 
D)  neither on the area of the piston nor the hydraulic pressure.

Question 7

Which of the following is used to turn the front pump on an automatic transmission?

Accepted Answer

A)  Torque converter hub 
B)  Flexplate 
C)  Crankshaft 
D)  All of the above

Question 8

Technician A says other transmission pressure-regulating valves are similar to the main line pressure regulation valves, except these valves reduce line pressure to create a new pressure that varies with vehicle operation. Technician B says shift valves are spool valves that direct the flow of hydraulic oil to a clutch or band. Which technician is correct?

Accepted Answer

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

Question 9

Technician A says that hydraulic pressure is the same in all directions within a closed container. Technician B says that one benefit of using hydraulic pressure is that it is not affected by leaks in the system. Who is correct?

Accepted Answer

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

Question 10

Technician A says a shift valve is a spool valve with multiple lands. Technician B says moving the shift lever in the cabin causes the manual valve to move and allows line pressure to flow into the appropriate hydraulic circuit. Which tech is correct?

Accepted Answer

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

Question 11

Depth filters may be made of:

Accepted Answer

A)  metal. 
B)  felt. 
C)  plastic. 
D)  polyester.

Question 12

Where does the oil supplying the governor valve, throttle valve and other transmission pressure regulating valves come from?

Accepted Answer

A)  The lubrication circuit at cooler pressure 
B)  The torque converter pressure regulator 
C)  The front pump at line pressure 
D)  None of the above

Question 13

Which of the following hydraulic circuits will usually contain an accumulator to prevent harsh shifts?

Accepted Answer

A)  Clutch and lubrication 
B)  Brake and clutch 
C)  Torque converter and cooling 
D)  Governor and throttle

Question 14

Technician A says that a one-way check valve allows fluid to flow in one direction, and stop fluid flow in another. Technician B says that a two-way check valve has one inlet port and two exhaust ports. Who is correct?

Accepted Answer

A)  Technician A 
B)  Technician B 
C)  Both technicians 
D)  Neither technician

Question 15

What are the larger diameter sections of a spool valve called?

Accepted Answer

A)  Lands 
B)  Valleys 
C)  Ridges 
D)  Grooves

Question 16

If a vehicle is used for towing or _________, the automatic transmission fluid should be changed more often.

Accepted Answer

A)  Is not driven for a month or two 
B)  Operates in dusty environments 
C)  Is driven at light loads and moderate speeds 
D)  Transmission fluid should never be changed

Question 17

The force created by a piston depends:

Accepted Answer

A)  only on the area of the piston. 
B)  only on the hydraulic pressure. 
C)  on both the area of the piston and the hydraulic pressure. 
D)  neither on the area of the piston nor the hydraulic pressure.

Question 18

Technician A says the spool valve got its name because of its resemblance to the spool that thread or fishing line comes on. Technician B says that with a spool valve, the clearance between the land and the bore must be just great enough to prevent the valve from sticking as it moves back and forth.

Accepted Answer

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

Question 19

Which of the following additives control how temperature affects transmission fluid?

Accepted Answer

A)  Antifoam 
B)  Seal conditioners 
C)  Viscosity modifiers 
D)  Detergent

Question 20

Which of the following oil pressures act together with the calibrated spring on one end of the shift valve, against governor pressure?

Accepted Answer

A)  Torque Converter Pressure 
B)  Boost Pressure 
C)  Line Pressure 
D)  Throttle Pressure

Exam 8: Hydraulic Fundamentals

Technician A says that most bands are contracted by releasing fluid pressure from a servo. Technician B says that most bands are contracted by applying fluid pressure to a servo. Who is correct?

Technician A says that an orifice is responsible for controlling the flow of hydraulic fluid between the valve body and the transmission. Technician B says that the orifice is sometimes built into the transmission or even the separator plate. Who is correct?

Which of the following additives prevent the internal parts of the transmission from developing rust and corrosion on metal components?

In some transmissions, what fluid may boost converter pressure so that the torque converter clutch can be applied more firmly under moderate load conditions?

Tech A says that spring tension against a spool valve regulates system pressure. Tech B says that a 50% pulse width modulation means the valve is closed 50% of the time. Who is correct?

The force created by a piston depends:

Which of the following is used to turn the front pump on an automatic transmission?

Technician A says that hydraulic pressure is the same in all directions within a closed container. Technician B says that one benefit of using hydraulic pressure is that it is not affected by leaks in the system. Who is correct?

Technician A says a shift valve is a spool valve with multiple lands. Technician B says moving the shift lever in the cabin causes the manual valve to move and allows line pressure to flow into the appropriate hydraulic circuit. Which tech is correct?

Depth filters may be made of:

Where does the oil supplying the governor valve, throttle valve and other transmission pressure regulating valves come from?

Which of the following hydraulic circuits will usually contain an accumulator to prevent harsh shifts?

Technician A says that a one-way check valve allows fluid to flow in one direction, and stop fluid flow in another. Technician B says that a two-way check valve has one inlet port and two exhaust ports. Who is correct?

What are the larger diameter sections of a spool valve called?

If a vehicle is used for towing or _________, the automatic transmission fluid should be changed more often.

The force created by a piston depends:

Which of the following additives control how temperature affects transmission fluid?

Which of the following oil pressures act together with the calibrated spring on one end of the shift valve, against governor pressure?