Part 66 Preparation

Aircraft and Workshop

Aircraft And Workshop

The ………... Is a place of dangerous activity ?
1. Repair shops
2. Hangers
3. Flight line
…………. Is primarily used for oxy-acetylene welding ?
1. Industrial oxygen
2. Breathing oxygen
3. Nitrogen
Is a colorless, tasteless, and odorless gas and extermly dangorous to handle ?
1. Co2
2. Nitrogen
3. Oxygen
………... Are those that are usually caused by the use of some type of equipment not directly controllable by the technician ?
1. Biological hazards
2. Physical hazards
3. Chemical agents
The best type extinguishers to use on class A fire is?
1. Water
2. Soda-acid
3. Co2
………. Co₂ is used on class D fires ?
1. Always used
2. Never use
3. Must be used
This fire extinguishers, effective on class B and C fires, are the best for use on class d fires ?
1. Co2
2. Halon 1202
3. Dry powder
Hearing protection can be ?
1. External
2. External or internal
3. Internal
Most workshop electrical supply equipment operating on…...Alternating current is connected with a three-conductor cord ?
1. 110/230-volt three-phase
2. 110/530-volt single-phase
3. 110/230-volt single-phase
These type of gasses are used in welding ?
1. Argon and co2
2. Argon and acetylene
3. Co2 and acetylene

Aircraft Materials Non-Ferrous

Heat-treatment is a series of operations involving the heating and subsequent cooling of alloys in their ?
1. Solid state
2. Liquid state
3. Gases state
The ability of copper to dissolve in aluminium__________ with temperature ?
1. Constant
2. Decreases
3. Increases
The properties of aluminium can only be changed by work ?
1. Hardening
2. Annealing
3. Hardening and annealing
The temperature of the water before quenching should not exceed ________?
1. 85 °F
2. 95 °F
3. 98°F
______ leaves the metal in the best condition for cold working ?
1. Tempering
2. Annealing
3. Forging
________________ is the ability of a material to resist stress without breaking ?
1. Hardness
2. Toughness
3. Strength
Copper is an example of ?
1. Ductile metals
2. Hard metals
3. Malleable metal
___________is that property that enables a metal to return to its original size and shape when the force which causes the change of shape is removed ?
1. Malleability
2. Elasticity
3. Ductility
______________numbers are based on the difference between the depth of penetration at major and minor loads ?
1. Brinell hardness
2. Rockwell hardness
3. Barcol tester
Cold working applies to mechanical working performed at temperatures __________ the critical range ?
1. Upper
2. Below
3. Same

Aircraft Materials Ferrous

Ability of a material to resist abrasion, penetration, cutting action, or permanent distortion?
1. Hardness
2. Brittleness
3. Toughness
Ability of a material to resist stress without breaking ?
1. Toughness
2. Strength
3. Hardness
It is the ability of a metal to become liquid by the application of heat ?
1. Malleability
2. Fusibility
3. Elasticity
It is the property which enables a metal to carry heat or electricity ?
1. Transferability
2. Inductivity
3. Conductivity
It is applies to iron base metals only ?
1. Tempering
2. Annealing
3. Normalizing
As the carbon content increases, the ability of the steel to be hardened is ……………?
1. Remain constant
2. Decreases
3. Increases
The steels best suited to case hardening is the……………?
1. Low carbon steel
2. High carbon steel
3. Medium carbon steel
It is used in the production of permanent magnets ?
1. Cobalt
2. Molybdenum
3. Tungsten
It is a weakness in materials, especially metals, caused by repeated variations of stress ?
1. Tensile weakness
2. Compression
3. Fatigue
This test is required where the test piece must be tested at high or low temperatures ?
1. Tensile strength test
2. CHARPY test
3. IZOD test