FINALS1

Question 1

Major supplier of aviation grease

Answer 1

Shell / Shell Company

Question 2

Different soap based greases

Answer 2

Aluminum
Calcium
Sodium
Lithium Soap

Question 3

Non-soap based greases

Answer 3

Silica Gel
Clay
Substituted Urea

Question 4

Two types of Thickener

Answer 4

Microgel
Lithium Complex

Question 5

It rely on an inorganic grease thickening agent, based on HECTORITE CLAY.

Answer 5

Microgel Grease

Question 6

They have a semi-liquid to solid consistency, reduce friction, and stay where ther are put.

Answer 6

Greases

Question 7

Grease consist of what?

Answer 7

Base oil
Thickener
Additives

Question 8

Percentage of Base oil? Thickener? Additive?

Answer 8

80% - 90%
10% - 15%
5% - 10%

Question 9

Types of grease

Answer 9

1. Aeroshell 5 whell bearing and engine accessory grease (MIL–G–3545C)
2. Aeroshell 6 purpose airframe grease (MIL–G–24139A)
3. Aeroshell 7 advanced multipurpose airframe (MIL–PRF–23827C)
4. Aeroshell 14 leading multipurpose helicopter grease (MIL–G–25537C)
5. Aeroshell 15 extreme temperature range grease (MIL–G–25013E)
6. Aeroshell 22 versatile multipurpose grease (MIL–PRF–81322G)
7. Aeroshell universal airframe grease (MIL–PRF–23827C / BMS 3–33)
8. Aeroshell 64 an extreme pressure (EP) grease (MIL–G–21164D)
9. Adrenol royco 11MS general purpose aircraft grease (MIL–M–7866)

Question 10

It is the high temperature grease.
Mineral Oil and Microgel

Answer 10

Aeroshell grease 5
MIL–G–3545C

Question 11

Operating temperature range of A.G 5

Answer 11

-23°C to +177°C

Question 12

The general purpose grease.
Mineral Oil and Microgel

Answer 12

Aeroshell Grease 6
MIL–G–24139A

Question 13

Operating temperature range of A.G 6

Answer 13

-40°C to +121°C

Question 14

It is the advanced multipurpose grease.
Synthetic oil and Microgel

Answer 14

Aeroshell grease 7
MIL–PRF–23827C

Question 15

Operating temperature range of A.G 7

Answer 15

-73°C to +149°C

Question 16

It is a helicopter multipurpose grease.
Mineral Oil and Calcium Soap

Answer 16

Aeroshell Grease 14
MIL–G–25537C

Question 17

Operating temperature range of A.G 14

Answer 17

-54°C to +93°C

Question 18

It is the extreme temperature range grease.
Silicone oil and Organic thickener

Answer 18

Aeroshell grease 15
MIL–G–25013E

Question 19

Operating temperature range of A.G 15

Answer 19

-73°C to +232°C

Question 20

It is composed of synthetic hydrocarbon oil thickened with micro gel

Answer 20

Aeroshell 22
MIL–PRF–81322G

Question 21

Operating temperature range of A.G 22

Answer 21

-65°C to +204°C

Question 22

It is composed of Lithium complex thickened synthetic base oil.

Answer 22

Aeroshell universal airframe grease
MIL–PRF–23827C / BMS 3-33

Question 23

Operating temperature range of Aeroshell Universal Airframe Grease

Answer 23

-73°C to +121°C

Question 24

Four (4) benefits of Aeroshell Grease 33 in operators.

Answer 24

1. Reduces inventories
2. Easier maintainability
3. Reduced maintenance labor costs
4. Less chance of product mis

Question 25

Companies aeroshell grease 33 fortified with 5% molybdenum disulphide.

Answer 25

Aeroshell 64 MIL--G--21164D

Question 26

It enhanced the aeroshell grease 33 by added of solid lubricants.

Answer 26

Aeroshell 64 MIL--G--21164D

Question 27

Operating temperature range of A.G 64

Answer 27

-73°C to +121°C

Question 28

It is a smooth, gray-black colored grease.

Answer 28

Adrenol Royco 11MS MIL--M--7866

Question 29

Operating temperature range of Adrenol Royco 11MS

Answer 29

-40°F to 300°F

Question 30

It is use to remain in contact with and lubricants moving surfaces without leaking out under the force of gravity.

Answer 30

Grease

Question 31

Advantages of Greases

Answer 31

Stay where it is placed, easy to control Excellent sealing capability Can withstand heavy shock load Requires less frequent application

Question 32

Advantage of Oils

Answer 32

The most effective lubricant Excellent cleaning and flushing capability Can be used in recirculative system Within Centralized system, generally more stable than grease

Question 33

Disadvantages of Greases

Answer 33

Has a lower operating temperature than oil Harden in bearing in higher-temperature application Requires greater pump pressure and line size to move grease around centralized system Introduced contamination from poor manual greasing

Question 34

Disadvantages of Oils

Answer 34

More difficult to control surface area Requires mechanical seals to control leakage

Question 35

Functional Properties of Grease

Answer 35

Grease functions as a sealant to minimize leakage and to keep out contaminants. Grease is easier to contain than oil. Grease holds solid lubricants in suspension. Fluid level does not have to be controlled and monitored.