15.09

Question 1

Where are mineral oils used

Answer 1

On piston type engines

Question 2

Are synthetic oils be storage stable

Answer 2

NO

Question 3

What is the viscosity index?

Answer 3

Effect temperature has on the viscosity of the oil.

Question 4

What is an alternative fuel type for Jet A1

Answer 4

Jet B

Question 5

What must you do if to ingest synthetic oil

Answer 5

Drink 250m of water and get medical help

Question 6

What is created during refuelling

Answer 6

Electric static charge

Question 7

What is the American name for Jet A1 fuel

Answer 7

JP 1A

Question 8

What is free point for jet A1 fuel

Answer 8

-47C

Question 9

What are type 3 synthetic oils

Answer 9

They have higher thermal stability and viscosity at high temperatures.

Question 10

What is the most common fuel type used in America

Answer 10

Jet A

Question 11

What is the freeze point jet a fuel

Answer 11

-40C

Question 12

What do category two fuel tanks have

Answer 12

Direct access door and wide enough to gain access

Question 13

What are the four types of turbine engine fuel

Answer 13

Jet A1
Jet A
Jet B
JP5

Question 14

Typical fuel will be composed of what

Answer 14

16% hydrogen and 84% carbon and small impurities

Question 15

What do category one fuel tanks have

Answer 15

Direct door access , but you cant get in completely

Question 16

What do category three fuel tanks have

Answer 16

No direct external access door, internal opening

Question 17

What are Type 2 synthetic oils

Answer 17

Used on modern GTE

Question 18

How is fire created

Answer 18

Oxygen,heat ,fuel

Question 19

What doe anti oxidants prevent

Answer 19

The formation of gum deposits

Question 20

What is rubber swelling

Answer 20

Amount of oil that can cause rubber to swell

Question 21

What type of fuel must be recorded when refuelling

Answer 21

JP5

Question 22

What is the fuel density of Jet A1 and Jet A fuel at 15 degrees C

Answer 22

0.81kg/lhr

Question 23

How many types of synthetic oils are there and what are they called

Answer 23

There are 3 type,

Type 1
Type 2
Type 3

Question 24

What are the two types of military fuel type

Answer 24

JP 4 and JP5

Question 25

What are Type 1 synthetic oils

Answer 25

First Generation, used on older gas turbine engines

Question 26

What does acidity measures

Answer 26

The corrosive tendencies of the oil

Question 27

Where are synthetic oils used

Answer 27

On jet engines

Question 28

What are category four fuel tanks

Answer 28

Only via internal openings To get out of these tanks mechanical cutters must be used

Question 29

What type of oil was used in the earlier gas turbine engine development

Answer 29

Mineral oil

Question 30

What is the disadvantage of synthetic oils

Answer 30

High price 💰💰💰

Question 31

What material is used to protect sparks

Answer 31

Cotton

Question 32

What is the main task of oil on jet engines

Answer 32

Lubricating Cooling Cleaning Corrosion protection

Question 33

What should the appearance of fuel be

Answer 33

Clear,bright & free from solid matter

Question 34

What is oil foaming

Answer 34

The measure of the resistance of oil to separate from entrapped air

Question 35

Why was synthetic oils developed for gas turbine engines

Answer 35

As they have better properties

Question 36

What can fuel handling safety procedures be divided into

Answer 36

Fire prevention Fire extinguishing Personnel safety

Question 37

What type of synthetic oil would you use on special aircrafts such as the Eurofighter.✈️

Answer 37

Type 3

Question 38

What is the pour point

Answer 38

The lowest temperature that oil will visibly move in a 31.75mm test tube held horizontally for 5 seconds

Question 39

What is the minimum flash point for Jet A1 fuel

Answer 39

38 degrees C or 100F

Question 40

What is the most common fuel type used in Europe

Answer 40

Jet A1

Question 41

Where does fuel vapour mainly come from

Answer 41

Fuel vent tanks or fuel leakes

Question 42

What is the advantage of synthetic oils

Answer 42

Better: Velocity Thermal stability High pressure resistance

Question 43

Can you mix synthetic oils with other synthetic oils from other manufacturer even if they are the same type

Answer 43

NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question 44

What should the freezing point of fuel for turbine engines should be below

Answer 44

-40C

Question 45

In what fuel type would you use kerosene

Answer 45

Jet A | Jet A1

Question 46

What type of fuel type is used on military aircrafts

Answer 46

JP5

Question 47

What is coking

Answer 47

Amount of carbon residue remaining in the oil after being subjected to extreme heating