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Flashcards in Exam 1 Deck (99)
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1

The fulcrum is at one end of the lever and the weight or resistance to be overcome is at the other end, with effort applied at some point between.

Third-Class Levers

2

Meaning to occupy space

Volume

3

What are the advantages of a wet sump system, compared to a dry sump?

A wet sump is attached to the bottom of the case, it is integral and complete, requiring no external parts and fittings to complicate installation and maintenance

No second (scavenge) pump is required

Chance of oil pump failure us reduced

This system can be operated in much colder ambient temperatures w/o concern that the oil congeal in the external lines

4

quantity which is useful when describing matter, especially when in the liquid or gaseous state

Density

5

Newton 3rd law

for every action there is an equal and opposite reaction

6

has neither a definite volume nor a definite shape.

gas

7

What is the relationship between aviation grade number and SAE numbers for lubricating oil?

Society of Automotive engineers divides all oils into groups according to viscosity at either 130F or 210F

8

Whagt forces are used to feather a propeller?

Centrifugal force

9

Resistance to motion is greatly reduced if an object is mounted on wheels or rollers

Rolling Friction

10

Prevents the escape of gas past the piston during engine operation

Compression Ring

11

Has a definite volume, but they take the shape of the containing vessel.

liquids

12

measure of the inertia of a body, and therefore is a measure of the quantity of matter associated with the body

Mass

13

Liquid cooled and air cooled with even number of cylinders. two in-line banks generally 30-60 degrees apart

V-type Engine

14

Work/Time

Power

15

What distinguishes a liquid from a gas?

Liquid has a definite volume, but they take the shape of the containing vessel. Gases not only take the shape of the containing vessel, but they expand and fill the vessel, no matter what it's volume

16

The useful output of all aircraft powerplants is the 

Force thrust

17

A feathered propeller will have a blade angle of approximately how many degrees?

90%

18

four-stroke cycle is?

Intake, compression, power, exhaust

19

The indicated horspower minus the brake horsepower

Friction Horsepower

20

What is the function of an augmenter tube?

Provide additional cooling airflow, especially for low speed, high power conditions (Climb)

21

How does opening cowl flaps affect engine cooling? Cabin cooling?

Open cowl flaps increase cooling over the engine and through the oil cooler

Hot and cold airflow into the cabin is reduced in most single engine installations due to reduced aur pressure inside and in front of the cowling when the cowl flaps are open

22

23

a force that results from the characteristic of particles of matter that causes attraction or pull on other particles of matter

Gravitation

24

Prevent leakage of gas pressure from the combustion chamber and reduce to a minimum the seepage of oil into the combustion chamber

Piston Ring

25

What is Force X Distance

Work

26

How are the cylinder walls lubricated in a typical opposed engine?

Oil sprayed from the crankshaft and crankpin bearings

27

How does the cowling contribute to the engine cowling?

Designed to force air over the cylinder cooling fins

28

The foundation of an engine.

Crankcase

29

The rate of doing work or the terms of work accomplished per unit of time

Power

30

Value of pressure of the standard day atmosphere at sea level

29.92 In of mercury

76 cm of mercury

14.7 psi

1013.25 mb

34 ft of water