Automotive Engine Parts and Operation?

Question

1. An automotive engine's camshaft rotates at
A. the same speed as the crankshaft.
B. one-quarter the speed of the crankshaft.
C. one-half the speed of the crankshaft.
D. twice the speed of the crankshaft.


2. The type of engine that contains one camshaft mounted in its cylinder head is called
A. an overhead valve engine.
B. an overhead camshaft engine.
C. a double-overhead camshaft engine.
D. a push rod engine.


3. The part of the poppet valve that contacts the valve seat is called the
A. face.
B. stem.
C. margin.
D. head.



FIGURE A-1—Use this illustration to answer Question 4.

4. Look at the engine block shown in Figure A-1. The engine shown in this figure is
A. a four-cylinder, in-line engine.
B. a six-cylinder, V-type engine.
C. a four-cylinder, horizontally opposed engine.
D. an eight-cylinder, V-type engine.


5. Which of the following components controls the opening and closing of the valves in an engine?
A. The crankshaft journals
B. The camshaft lobes
C. The rocker arms
D. The push rod



FIGURE A-2—Use this illustration to answer Question 6.

6. Look at the engine shown in Figure A-2. What type of valve system does the engine shown in this figure contain?
A. An overhead camshaft design with solid lifters
B. An overhead valve design with hydraulic lifters
C. An overhead camshaft design with hydraulic lifters
D. An overhead valve design with solid lifters


7. The crankshaft parts that are supported in the engine block by bearing inserts are called
A. rod journals.
B. main journals.
C. crankshaft throws.
D. lobes.


8. During an engine's intake stage, what passages inside the cylinder head must the incoming air-and-fuel mixture flow through in order to enter the cylinder?
A. The intake ports
B. The exhaust manifold
C. The valve guide
D. The cylinder bore


9. Which of the following components serves as both a cover for the bottom of the engine block and a reservoir for engine oil?
A. The valve cover
B. The oil pan
C. The front cover
D. The lubrication retainer



FIGURE A-3—Use this illustration to answer Question 10.

10. Look at the illustration in Figure A-3. What method of driving a camshaft is shown in this figure?
A. A timing chain drive system
B. A timing belt drive system
C. A gear drive system
D. A direct drive system


11. In most engines, the head of the intake valve is
A. slightly larger than the head of the exhaust valve.
B. much smaller than the head of the exhaust valve.
C. the same size as the head of the exhaust valve.
D. a different shape than the head of the exhaust valve.


12. In an automotive engine, the wrist pin connects
A. the connecting rod to the crankshaft.
B. the crankshaft to the camshaft.
C. the piston to the connecting rod.
D. the valve to the cylinder head.


13. Which of the following components helps to limit the front-to-back movement of the crankshaft?
A. The cam bearing
B. The flywheel
C. The thrust bearing
D. The vibration dampener


14. The up-and-down motion of the piston is converted to rotary motion by the
A. cylinder head and the valves.
B. bearings and the piston rings.
C. push rods and the rocker arms.
D. connecting rod and the crankshaft.


15. In a typical automotive engine, the piston contains _______ compression ring(s).
A. one
B. two
C. three
D. four


16. Which of the following components is an external passageway that connects an engine's fuel system to a cylinder head port?
A. The exhaust manifold
B. The intake manifold
C. The intake valve
D. The exhaust valve


17. Which of the following lists the stages of the four-stroke engine cycle in the correct order of operation?
A. Power, intake, exhaust, compression
B. Intake, power, compression, exhaust
C. Exhaust, power, intake, compression
D. Intake, compression, power, exhaust



18. The space between the top of the valve stem and the rocker arm is called the
A. valve clearance.
B. end play.
C. bearing thrust.
D. valve margin.


19. The component in the cylinder head that holds a valve in place and prevents the valve stem from moving side to side is the
A. valve spring.
B. valve guide.
C. valve cover.
D. retainer clip.


20. The top of the cylinder head is sealed by the
A. valve cover.
B. front cover.
C. oil pan.
D. oil retainer.


21. The area in the cylinder head where the air-and-fuel mixture is burned is called the
A. combustion chamber.
B. intake port.
C. exhaust port.
D. valve guide.


22. A typical oil control ring consists of _______ separate part(s).
A. one
B. two
C. three
D. four


23. During engine operation, the total distance that a valve opens is called the
A. rise.
B. lift.
C. duration.
D. stroke.

A-1
A-2
A-3

Answer 1

Just get out your text book and do the work yourself. If it necessary that you learn this, some one else telling you the answers won't help.

Answer 2

I hope you don't ever work on my vehicle! You're just the type guys come around every day looking for work. Knows nothing but worth top dollar! Try learning something for yourself so you won't be a complete failure in life! I'm tired of supporting you guys!!!!

Answer 3

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Answer 4

are you trying to get us to do your homework for you ? for shame sir, for shame !

Answer 5

what is this, your homework?