Day 3 Progress Check

Question 1

What is the purpose of valve seats in aircraft engine cylinders?

Answer 1

To protect cylinder heads soft aluminum from hammering of valves open/close and exhaust gases

Question 2

What do cylinder fins do ?

Answer 2

Provide rapid heat conduction

Question 3

How do cylinders fire in a single-row radial engine?

Answer 3

odd in numerical succession, then even in numerical succession

Question 4

A cylinder barrel needs to have which of the following properties?

Answer 4

be high strength

Question 5

What is the purpose of numbering and firing order in an aircraft engine?

Answer 5

To maintain engine balance and reduce vibrations

Question 6

What are the four major design requirements for aircraft engine cylinders?

Answer 6

Strong, lightweight, good heat-conduction, and easy to manufacture

Question 7

What is the portion of the engine where power is developed?

Answer 7

Combustion chamber

Question 8

What is the firing order of a six-cylinder radial engine?

Answer 8

1-4-5-2-3-6

Question 9

Why is firing order in a radial engine important?

Answer 9

It follows the firing impulses that follow the crank throw during rotation

Question 10

In an opposed engine, which is the correct numbering system?

Answer 10

no standard numbering system