Unit 2 Quiz 1 engines
Which of the following vehicle systems must work correctly for proper engine functionality?
All the above
In a pushrod engine, which engine component moves the pushrod directly
Camshaft
All of the following are part of a cylinder head EXCEPT:
Combustion Chamber
Technician A says valves close against precision-machined areas or inserts in the combustion chamber ends of the ports called valve guides. Technician B says some valve seats are located in the block on later model engines. Who is correct?
Neither Technician A nor B
What is the function of valve springs in a cylinder head?
Prevent oil from entering the combustion chamber
What is the purpose of O-ring and valve seals in cylinder head?
Prevent oil from entering the combustion chamber
What is the main job of the cylinder head?
Prevents engine oil from getting past the piston
Technician A says the camshaft must open and close each valve at exactly the right time relative to piston position. Technician B says all overhead cam engines must be belt-driven from the crankshaft. Who is correct?
Technician A only
Two technicians are discussing modern day four stroke engines. Technician A says one stroke of a piston moves the crankshaft through one complete revolution. Technician B says a crankshaft has to make two completed revolutions before the process can start again. Who is correct?
Technician A only
When considering Crankshaft and Camshaft rotation speeds, which is true?
The camshaft turns twice as many revolutions as the crankshaft
Which of these is NOT an advantage of Timing Belts over Timing Chains?
They are quieter
Which of these is not an advantage of Timing Belts over Timing Chains?
They are quieter