Exam 8: Hydraulic Fundamentals

Some modern automatic transmission fluids are a darker ____ when they are brand new and even have a slightly burnt smell to them.

Automatic transmission check valves always use a spring to keep the check ball in place.

A mechanical pressure control regulator valve is a simple mechanism that uses a spring and a ______ to dump excess fluid back to the transmission pan.

The _______ checks the automatic transmission pump operation, the pressure regulator, and the seals and gaskets inside the transmission.

Technician A says that an orifice is a restriction. Technician B says that orifices are used to slow down clutch engagement. Who is correct?

If a transmission has failed, debris may become lodged in the spool valves requiring the entire valve body to be disassembled and cleaned.

After leaving the automatic transmission's cooler, the transmission fluid is ready to enter the transmission lubrication circuit. Which parts are typically lubricated by this circuit?

Which valve is often connected to the gearshift lever through a linkage or a cable?

Technician A says that increasing the transmission fluid level from the add mark to the full mark will require a quart of fluid, just like with engine oil. Technician B says says that increasing the transmission fluid level from the add mark to the full mark will require a pint of fluid. Who is correct?

A mechanical pressure control regulator valve is a simple mechanism that uses a spring and a ______ to dump excess fluid back to the transmission pan.

_______ law is one of the fundamental physics principles behind the operation of an automatic transmission.

Internal transmission filters are more common than external filters.

A(n) __________ is a precision hole, used in conjunction with check balls to restrict fluid flow.

Two technicians are discussing electronically controlled automatic transmissions. Technician A says an air test can check clutches and bands for holding pressure and proper movement. Technician B says an air test can identify a leak in a hydraulic circuit or unusual application of a band or clutch. Who is correct?

Technician A say orifices are often used in conjunction with spool valves to restrict fluid for timing purposes or to prevent valve fluctuations. Technician B says accumulators are used to dampen the application of clutches and bands. Which technician is correct?

Technician A says if a servo piston has approximately 3 square inches (49 square mm) of surface area, and hydraulic pressure of 150 psi (1034 kPapplied to it, then it can deliver approximately 450 pounds (204 kg) of force. Technician B says that the pressure applied would be 50lbs (23 kg) Who is correct?

What housing is made of aluminum or cast iron, and holds many different spool valves, check valves, springs, and orifices to make the transmission operate properly?

Which of the following is NOT a type of transmission pump?

Which of the following additives are designed to help protect the seals inside a transmission and cause the seals to swell slightly to help prevent leaks and clutch slippage?

Tech A says that transmission failures can be caused by failed lip seals preventing full pressure from being applied to the clutches. Tech B says that orifices are designed to speed up the movement of a valve. Who is correct?