Correct answer
Generally at the coolant outlet from the cylinder head towards the radiator.
Generally at the coolant outlet from the cylinder head towards the radiator. It is a temperature-sensitive valve regulating flow towards the radiator: it restricts it when the engine is cold and permits it as temperature rises. The exact arrangement depends on engine design; do not assume it is always along the upper hose or locate it without manufacturer documentation.
Practice more C licence questions
A self-check with exam-style questions on Mechanics and maintenance. Free, no signup.
All options
Always inside the combustion chamber, directly exposed to the flame.
Generally at the coolant outlet from the cylinder head towards the radiator.
Always in the fuel tank, regulating diesel flow.
Editorial status: editorially approved. This status does not certify legal review. Report a correction
Keep studying
Related questions
- What main function do road-tyre tread grooves serve on a wet road?
- A lorry circuit requires nominal 24 V and has two compatible 12 V batteries. Which connection adds their voltages?
- An electrical accessory does not work while the others operate normally. The manual says to check its overcurrent protection first. Which component should you check?
- In a diesel engine with a conventional mechanical injection pump and rack-controlled fuel delivery, which assembly includes the governor that limits maximum engine speed?
- In a conventional four-cylinder, four-stroke engine, how far does the crankshaft rotate during one complete piston stroke from one dead centre to the other?
- A lorry has an expansion tank marked MIN and MAX. When checking coolant with a cold engine according to the manufacturer’s instructions, must you inspect the level?