ACRM MOCK 2 - 1 AERO

When fastening carbon fiber to Aluminum, what should be used as a fastener

They should not be fastened together

This is the process of forming hot metal with rollers to form sheets, beams, and bars that obtains new recrystalyzation grains and reduced cross sectional area?

Rolling

It has a high corrosion resistance that is also excellent in its thermal and electrical porperties, but it has a very low strength?

Pure Aluminum

It is the alloy that has a good welding and corrosion resistance properties. but it is suceptable to corrosion if exposed at high temperature, high stress, and to a different alloy.

5xxx

This alloy in the alloying agents produces great strength. However, when improperly heat treated, it is suceptable to intergranular corrosion. It is mostly used in aircraft structures.

Copper

This is the opposite of Hardening, that softens and reduces the internal stress of the metal?

Annealing

What does the Hardness Designation 'H36' means?

Strain Hardened and stabilized with 3/4 Hardness

On the SAE steel designation index (e.g. SAE 3250), what does the digit '50' indicates?

Carbon content in hundredths of 1 percent

This is an ideal choice for landing gear structures, and engine mounts. Its thoughness and wear resistance make it a good material for engine cylinders thats why it is the most commonly used alloy in aircraft construction.

Chrome-molybdenum Steel

Many Aircraft parts are produced using this particular fabrication method:

Hydropressing

Appropriate support tool to form the tail of a solid shaft rivet.

Bucking bar

A type of fastener that can be quickly removed and returned, making it ideal for removable panels such as inspection plates, doors, and cowlings

Turnlock Fastener

This type of welding can also be used to cut metals instead.

Oxyacetelyne Welding

If designing a spaceborne metal mechanism, special care that the oxide layers must not abrade and come into contact into each other due to ____________

Cold Welding

Which type of oxyacetylene flame is characterized by excess oxygen, a short and sharp inner cone, and is commonly used for cutting operations?

Oxidizing Flame

A rectangular patch requires a 1/4 in diameter (D) rivet. If the patch is 3in x 7 in, requires 2D edge distance, and 4D spacing, how many holes are required to be drilled along one of the 7in edge?

7

An Owner wants their Cessna 152's stock 2 bladeed propeller to be replaced with a custom 5 ft diameter 5 blade propeller for STOL capabilities. If this task is carried out, what is it classified under?

Major Powerplant Modification

A crack was observed on a thin metal plate. What should be done to stop the propagation of the crack?

Drill holes at the ends of the crack, Then apply a Repair Patch

It was determined that after a hard landing, damage was reported on the wing box section of the Airbus A320-400. Which of the following is to be used as reference for repairs?

A320-400 SRM

An engineer researched a resin for his planned composite light aircraft. He found that it is suitable for non-porous and dissimilar materials, has a high strength-to-weight ratio, excellent adhesion, and is resistant to moisture. However, once opened, its pot life is very short. What resin is this?

Epoxy

A wood defect due to the area being moist for a long time, forming organic growths.

Rotting

This NDT if often used exclusively for thin composite structures that use radian electromagnetic thermal energy in order to detect flaws on the material.

Thermography Inspection

What inspection method is used by a mechanic to examine the internal components of a gas turbine engine (GTE) without disassembling it?

Boroscope Inspection

Aluminum corrosion is often described as

White or gray film over the affected area.

What kind of corrosion forms when we create a splice connection using magnesium and aluminum?

Galvanic Corrosion

A lap slice connection was made on two sheet metals of a truck. But later due to improper bolt connection, it vibrates excessively during normal operations that resulted to abrasive wear. What type of corrosion it experienced?

Fretting Corrosion

During aircraft doping, excessive heat or strong airflow causes the surface of the coating to dry and harden too quickly, trapping solvent vapors beneath. These vapors form bubbles that rupture through the film, leaving small holes. What defect is being described?

Pinholing

Thus three component material with one part of acid and four parts of thinner that is cured for 30 minutes that can be used on aluminum, magnesium, steel, and fiberglass.

Wash Primer

A mechanic needs to determine the hardness of a metal component without leaving any visible indentation. The test involves dropping a small diamond-tipped hammer from a fixed height and measuring the rebound height to assess hardness. Which test method is being described?

Shore Scleroscope

Which zone is associated with the landing gear system?

700

Which of the following zone pairings is incorrectly matched with its corresponding aircraft area?

600 – Left wing

Which type of aviation fuel is identified as a wide-cut fuel with high volatility, suitable for use in -50 degree Celcius/-58 degree Farenheight?

Jet B

During maintenance, a technician is tasked to inspect a steel landing gear component for surface cracks. The method selected involves magnetizing the part and applying fine particles to reveal discontinuities. The technique cannot be used on aluminum components.

Magnetic particle inspection

A technician is selecting the proper rivet length to join two aluminum sheets with a total thickness of 0.24 inch. The rivet diameter is 1/8 inch. Using standard practice for solid rivets, what should be the required rivet length?

7/16 inch

If a rivet has a designation of MS20470 AD 4 - 5. What does the 4 represents?

Rivet diameter in 1/32 inch increments

A composite material used in aircraft structures exhibits high compressive strength and high stiffness. However, it must be isolated from anodic metals such as aluminum to prevent galvanic corrosion due to its electrical conductivity. Which material best fits this description?

Carbon/Graphite

Aluminum corrosion is often described as

White or gray film over the affected area.

Under the Aircraft Manufacturer Maintenance Planning Document (MPD), which of the following is not normally classified under task code “SV”?

System Recover

An aeronautical engineer discovers that the FAA has issued a mandatory corrective action for a known defect affecting a specific aircraft engine model. Compliance is required within 100 flight hours to maintain airworthiness. Under which regulatory document is this requirement issued?

Airworthiness Directive (AD)

Where would you find the operating conditions that make a 100-hour inspection mandatory?

14 CFR part 91

Which of the following information is NOT normally displayed on the Electronic Centralized Aircraft Monitor (ECAM)

Permanent Flight Recorder Data

What is the ATA chapter 79

Oil

During an airworthiness audit, the terms “continued airworthiness” and “continuing airworthiness” are discussed. Which statement best distinguishes these two concepts?

Continued airworthiness concerns the manufacturer’s responsibility to maintain the safety of the aircraft design, while continuing airworthiness concerns the operator’s responsibility to keep the aircraft airworthy in service

Which of the following is NOT classified as ground support equipment (GSE)?

Auxiliary power unit (APU))

Which of the following correctly identifies recognized types of aircraft landing gear retraction systems?

Hydraulic, Electrical, Pneumatic, and Mechanical

An aircraft technician is preparing an aluminum component for painting while also preserving electrical conductivity required for bonding. Which surface treatment process is most appropriate?

Alodizing

Which fabrication process is commonly used in the production of contoured aircraft sheet-metal parts?

Hydropressing

A hydraulic pump is classified as a constant-displacement pump when it:

Delivers the same volume of fluid during each rotation

Which group of fire-extinguishing agents is considered suitable for aircraft interior fire protection?

Water, carbon dioxide, dry chemical, and halogenated hydrocarbons

A light aircraft is weighed in the flying position with the following weights recorded: left wheel is 985 lbs, right wheel is 963 lbs, and nose wheel is 653 lbs. The distance between the main wheels and the nose wheel is 120 inches. The datum is located 84 inches ahead of the main gears. The CG of the aircraft is located at _____.

30.13 inches ahead of the main gear