9 AELG Maintenance Standard Day 2023

___ is a process of connecting exposed conductive parts of an electrical system to earth or ground

• Protective bonding

• Equipotential bonding

• Functional bonding

• Supplementary bonding

Corrsion can be prevented by ___

• By increasing the metal’s surface

• Coating protective layer on the metal surface

• By exposing the metal to air moisture

• By applying a layer of oil to the metal surface

What is the purpose of cleaning a surface or part of an LRU prior installation?

• Preventing contamination

• Improved visibility to detect any flaws

• Prevent any potential hazards that can be harmful if they come into contact with the skin or inhaled

• All of the above

What describe a non-locking nut?

• Standard nut that prevent it from loosening due to vibration or other external forces

• Standard nut does not have built in locking mechanism that prevent it from loosening due to vibration or other external forces

• Non locking nut automatically lock to the bolt

• Non locking nut do not require cotton pin and safety wire to secure the bolt

What is a countersunk screw?

• A screw with a hexagonal head designed to be flush with the surface it is screwed into

• A screw with a pointed head designed to be flush with the surface it is screwed into

• A screw with a rounded head designed to be flush with the surface it is screwed into

• A screw with a flat head designed to be flush with the surface it is screwed into

Which is not the main part of a screw?

• Head

• Base

• Thread

• Body

What is the difference between a flat washer and a lock washer?

• A flat washer is thicker than a lock washer.

• A flat washer is used to prevent loosening, while a lock washer is used to distribute the load of a fastener.

• A flat washer is used to distribute the load of a fastener, while a lock washer is used to prevent loosening.

• There is no difference between a flat washer and a lock washer.

Which of the following statements is true about lock washers?

• They increase the friction between a fastener and a surface.

• They are only used in automotive applications.

• They are not necessary for most applications.

• They create a permanent bond between two surfaces.

What should be done with equipment before performing any maintenance tasks?

• Continue working while the equipment is running

• Disable the safety interlocks to speed up the process

• Start the equipment to ensure it is functioning properly

• Shut down and isolate electrical sources to prevent accidental startup

What is wire rope bird caging?

• A failure mode of wire rope where the wires become distorted and separate from the main body of the rope

• A type of bird cage made of wire

• A type of wire rope used in the aviation industry

• A method of repairing damaged wire rope