M6 Part 5 (Final)

19 Questions | By Cyberedward | Last updated: Mar 20, 2022 | Total Attempts: 270

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Part 5. Last part for m6DO NOT SHARE

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1.

A sake proof washer has
- A.
  
  Saw tooth serrations
- B.
  
  Two or more tabs
- C.
  
  Thin metal places
2.

The wrap direction of the top layer of fabric of a composite structure that requires repair is typically found by
- A.
  
  Determine the direction of the edge of the fabric
- B.
  
  Refer to the structure repair manual
- C.
  
  Using the wrap compass
3.

Identification of corrosion for aluminum alloy is present in ______ colour
- A.
  
  White
- B.
  
  Greenish film
- C.
  
  Red
4.

For an aircraft with a hydraulic system that operates above 3000psi, the fluid line is most likely to be
- A.
  
  Pure aluminum tubing
- B.
  
  Stainless steel tubing
- C.
  
  Aluminum allot tubing
5.

Copper conductiors used in aircraft electrical system are coated with thin nickel or silver to
- A.
  
  Increase conductivity and current carrying capacity
- B.
  
  Increase cable strength and fatigue resistance
- C.
  
  Prevent oxidation and facilitate soldering
6.

Which area of the aircraft is most prone to corrosion?
- A.
  
  Fuselage area below the galley and toilet
- B.
  
  Cargo floor
- C.
  
  Wing leading edge
7.

A pulley system has an efficiency of 80% with a velocity ratio of 15, the force required to lift a load of 290kg is
- A.
  
  24.2kg
- B.
  
  34.80kg
- C.
  
  23.2k
8.

A quick-disconnect coupling consists of
- A.
  
  A flared tube assembly
- B.
  
  A flareless tube assembly
- C.
  
  Two check valves.
9.

Which of the following devices are LH as well as RH threads?
- A.
  
  Turnbuckles
- B.
  
  Flareless tube fittings
- C.
  
  Easy nuts
10.

Fasteners in the AN, NAS, MS series
- A.
  
  Use UNC or UNF threads
- B.
  
  Are interchangeable with the metric threads
- C.
  
  Have BA and BSF threads
11.

The left hand threaded and of a turnbuckle can be identified by
- A.
  
  An inspection hole in the barrel
- B.
  
  A groove or knurl on the barrel
- C.
  
  The letter “L” stamped on the barrel
12.

Electrical cables that are expose to the highest temperature on an aircraft are found in the
- A.
  
  Wings
- B.
  
  Fuselage
- C.
  
  Engine
13.

Which one of the following American Wire Gauge is able to carry the greatest current load
- A.
  
  AN-16
- B.
  
  AN-18
- C.
  
  AN-22
14.

Cables can be tensioned using
- A.
  
  Bolts and Nuts
- B.
  
  Turnbuckles
- C.
  
  Locking wires
15.

Inner and outer bearing races are found in
- A.
  
  Ball and Roller Bearings
- B.
  
  Plain Bearing
- C.
  
  Ball bearing only
16.

What is age–hardening of a metal
- A.
  
  It is a process where the metal is quenched after heat treatment to develop its properties
- B.
  
  It is a process where the metal is quenched after heat treatment and left it for some time to develop its properties
- C.
  
  It is a process where the metal is left is cooled in still air after heat treatment to develop its properties
17.

What is the main purpose of a matrix in a composite?
- A.
  
  To withstand load from the fibre
- B.
  
  To accommodate fibre in a better pattern
- C.
  
  To transfer stresses to the fibre
18.

What type of corrosion is caused by two mating surfaces having slight relative motion?
- A.
  
  Electrochemical
- B.
  
  Fretting
- C.
  
  Pitting
19.

2024 DD alloy rivets are kept in refrigeration to
- A.
  
  Remove any internal stresses caused by cold working
- B.
  
  Prevent the rivets from age hardening
- C.
  
  Allow the rivets to age harden