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FREE AND STUDY GAMES ABOUT FINAL REVIEW 2201
EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -71 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Horsepower in the cylinders
Answer:
indicated
Question 2: Before starting a radial engine, what should be attempted?
Answer:
Rotate the prop in the same direction Question 3: When would small induction system air leaks have the most noticeable effects
Answer:
At low RPM
Question 4: What is grounded when the ignition switch it turned off?
Answer:
P-leads
Question 5: When is the combustion process completed?
Answer:
Shortly after TDC on the power stroke
Question 6: Excessive valve clearance causes the duration
Answer:
to increase
Question 7: Operating valve clearance
Answer:
will be greater when hot
Question 8: What is a choke or tapered ground cylinder
Answer:
- slightly smaller at the top of the cylinder and expands when it heats up. Provides a straight cylinder
bore at operating temperatures
Question 9: Back suction mixture control operates by
Answer:
varying the pressure acting on the fuel in the float chamber
Question 10: What is the purpose of using an impulse coupling with a magneto?
Answer:
To produce a momentary high rotational speed of the magneto Question 11: Why does the smoothness of operation of an engine increase with a greater number of cylinders?
Answer:
The power impulses are closer together
Question 12: What does valve overlap promote?
Answer:
Better scavenging and cooling characteristics
Question 13: Which of the following has the greatest effect on the viscosity of lubricating oil?
Answer:
Temperature Question 14: Grinding the valves of a reciprocating engine to a feather edge is likely to result in -
Answer:
preignition and burned valves
Question 15: Which fuel/air mixture will burn all of the fuel and air?
Answer:
Stoichiometric
Question 16: How many springs are required for valves?
Answer:
2- Redundancy and reduction of vibration, valve flutter dampening Question 17: A condition that occurs in radial engines but not horizontally opposed engines is
Answer:
hydraulic lock Question 18: Which of the following is most likely to occur if an overhead valve engine is operated with inadequate valve clearances?
Answer:
The valves will not seat positively during start and engine warmup
Question 19: E-gap angle is defined as
Answer:
several degrees of magnet rotation beyond the magnet's neutral position
Question 20: What do full floating piston heads allow motion between?
Answer:
the piston and the connecting rod
Question 21: What stroke does the fuel injection system inject fuel?
Answer:
all of them
Question 22: Which would make a good thrust bearing?
Answer:
Deep grooved ball bearing
Question 23: Primary concern when establishing a firing order?
Answer:
- provide for balance and eliminate vibration to the greatest extent possible
Question 24: What are pole shoes made of?
Answer:
laminated soft iron to dissipate magnetism readily
Question 25: Cast iron piston rings may be used in
Answer:
chrome plated cylinders.
Question 26: Which one has the least rolling friction?
Answer:
Ball bearing
Question 27: What are factors that decrease VE?
Answer:
Improper valve timing, sharp bends in the induction system, and high carburetor air temperatures Question 28: Which of the following conditions will lead to bleeding detonation?
Answer:
Low octane fuel