Engine Repair Final Exam UPDATED ACTUAL Exam Questions and CORRECT Answers
0 view 0 purchase
Course
Engine Repair
Institution
Engine Repair
Engine Repair Final Exam UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Which one of the following is NOT a stroke of the four-stroke cycle?
A) intake
B) compression
C) ignition
D) exhaust - CORRECT ANSWER- C) ignition
Engine Repair Final Exam UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Which one of the following is NOT a stroke of the four-stroke cycle?
A) intake
B) compression
C) ignition
D) exhaust - CORRECT ANSWER- ✔✔C) ignition
What is compression ratio?
A) the diameter of the cylinder
B) cylinder arrangement
C) the ratio of the air to fuel mixture
D) none of these answers is correct - CORRECT ANSWER- ✔✔D) none of these answers is
correct
To complete a four-stroke cycle in one cylinder, the crankshaft must rotate _____ degrees.
A) 180
B) 360
C) 540
D) 720 - CORRECT ANSWER- ✔✔D) 720
On a 4-cylinder engine that has a firing order of 1342, if number 1 cylinder is on the exhaust
stroke, what stroke is number 3 cylinder on?
A) intake
B) compression
,C) power
D) exhaust - CORRECT ANSWER- ✔✔C) power
The stroke of an engine is _____ that of a crankshaft throw.
A) half
B) twice
C) four times
D) equal to - CORRECT ANSWER- ✔✔B) twice
The volume of the combustion chamber when the piston is at BDC divided by the volume of
the chamber when the piston is at TDC is called _____.
A) displacement
B) compression ratio
C) volumetric efficiency
D) mechanical efficiency - CORRECT ANSWER- ✔✔B) compression ratio
Which of the following engine problems may be indicated by good results from a
compression test and a cylinder leakage test but poor results from a cylinder power balance
test?
A) incorrect valve timing
B) collapsed lifter
C) burnt intake valve
The component connected to the crankshaft that serves to store some of the engine's power is
the _____.
A) flywheel
,B) connecting rod
C) piston
D) main bearing - CORRECT ANSWER- ✔✔A) flywheel
Which V-type engine valve train design may use four camshafts?
A) OHC
B) DOHC
C) OHV
D) DOHV - CORRECT ANSWER- ✔✔B) DOHC
A four-stroke cycle engine requires at least _____ valves at the top of each cylinder.
A) one
B) two
C) three
D) four - CORRECT ANSWER- ✔✔B) two
In what type of engine is the intake valve held open longer than normal during the
compression stroke?
A) Wankel
B) Atkinson cycle
C) two-stroke
D) diesel - CORRECT ANSWER- ✔✔B) Atkinson cycle
Both valves are closed on the _____ strokes.
A) power and exhaust
B) intake and exhaust
, C) intake and compression
D) compression and power - CORRECT ANSWER- ✔✔D) compression and power
A wet compression test is performed on an engine after a dry compression test revealed low
compression on one cylinder. If the compression on the low cylinder rises, it indicates _____.
A) leaking valves
B) worn rings
C) worn camshaft lobe
D) all answers are correct - CORRECT ANSWER- ✔✔B) worn rings
How many degrees of crankshaft rotation does it take to complete one complete engine cycle
in a 4-stroke engine?
A) 90
B) 180
C) 360
D) 720 - CORRECT ANSWER- ✔✔D) 720
The reciprocating movement of the piston is converted into rotary motion by the _____.
A) crankshaft and connecting rod
B) intermediate shaft
C) flywheel
D) camshaft - CORRECT ANSWER- ✔✔A) crankshaft and connecting rod
What component of the engine determines the stroke?
A) cylinder block
B) pistons
C) connecting rods
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller MGRADES. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.