PHILSCA Aircraft Construction, Repair, and Maintenance (ACRM) Practice Exam

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• Which of the following is NOT typically included in a comprehensive safety audit?
• What does zero fuel weight represent?
• After experiencing what load must the airframe structure remain intact?
• What is the procedure for de-icing an aircraft?
• When approaching the front of an idling jet engine, what is the approximate hazard area that extends forward?
• When should a fiber-type, self-locking nut not be used on an aircraft?
• When might a technician skip the normalization process?
• What is the significance of "line maintenance" in aircraft operations?
• What is a service bulletin in aviation maintenance?
• What is meant by "regulatory compliance" in ACRM?
• What does the process of aircraft engine overhauling involve?
• In which application are stainless steel rivets predominantly used?
• Why are weight and balance calculations important in aviation?
• What is the significance of Standard Operating Procedures (SOPs) in aircraft maintenance?
• What are the factors considered during a weight and balance calculation?
• GTAW is an acronym for which welding process?
• What do aircraft bolts with a cross or asterisk marked on the bolthead signify?
• What is the primary focus of fuselage repair in aircraft maintenance?
• With which system is differential control associated?
• What should be used to neutralize nickel-cadmium battery cases affected by electrolyte?
• A faint line running across the grain of a wood spar usually indicates which type of failure?
• Which of these materials is the most cathodic?
• How frequently must an aircraft typically undergo a comprehensive safety audit?
• Which type of brush is advised for removing corrosion from magnesium parts?
• What is the purpose of using safety wire in aircraft maintenance?
• How does an aircraft's autopilot system function?
• Which factor primarily affects the shear strength of a rivet?
• How is the useful load of an aircraft defined?
• Which two types of mediums are used for magnetic particle inspection?
• Which type of loads cause the most rivet failures?
• Which tool is used to measure the alignment of a rotor shaft?
• Why is proper documentation crucial in ACRM?
• Which solvent is suitable for cleaning acrylics and rubber?
• What role do rivets play in aircraft structures?
• What is the difference between preventive maintenance and corrective maintenance?
• What type of steel is generally used for lightweight structural components in aviation?
• Why is it important to keep electrical connections clean and secure?
• Which method can be used to remove corrosion from highly stressed steel surfaces?
• What is the primary purpose of a Type Certificate for an aircraft?
• What are the primary causes of aircraft accidents related to maintenance?
• What is one method for inspecting a laminated fiberglass structure that has been damaged?
• Why is line maintenance important for aircraft safety?
• What is the most satisfactory extinguishing agent for a carburetor or intake fire?
• Which heat-treating process produces a hard, wear-resistant surface over a tough core?
• Which compound is toxic and not suitable for wiping down surfaces before painting?
• What is the primary function of wing slats on an aircraft?
• What is the role of the Federal Aviation Administration (FAA) in aircraft maintenance?
• Shallow scratches in sheet may be repaired by?
• What is the best procedure to follow when removing a solid shank rivet?
• What is the minimum grain count required for softwoods?
• What is essential to use when welding aluminum to prevent oxide formation?
• What is the main purpose of an aircraft's hydraulic system?
• What does the acronym "ELT" refer to in aviation?
• What color identifies an AN steel flared-tube fitting?
• Joggles in removed rivet shanks would indicate partial?
• What is stability about the axis that runs parallel to the line of flight referred to?
• What percentage of base metal thickness is required for penetration on a fillet weld?
• What solution should be used to neutralize nickel-cadmium battery cases affected by electrolyte?
• What role does a maintenance planner typically perform in aircraft construction and maintenance?
• What is the key function of a Maintenance, Repair, and Overhaul (MRO) facility?
• What color indicates an AN steel flared-tube fitting?
• What does rivet gauge, or transverse pitch, measure?
• If the empty weight center of gravity (CG) of an airplane is within limits, what can we conclude?
• What is one characteristic of a good weld in relation to oxide formation on the base metal?
• What is the standard protocol regarding welding over brazed or soldered joints?
• What material is generally used in the construction of aircraft engine firewalls?
• Which tool measures clearance between a surface plate and a narrow surface being checked for flatness?
• Which product is used to clean acrylics and rubber?
• What role does documentation play in aircraft maintenance?
• What does the Vernier scale graduation of a micrometer represent?
• Name a common type of composite material used in modern aircraft.
• What material are oxygen and acetylene cylinders primarily made of?
• What is the significance of a pre-flight inspection?
• What is the ultimate objective of the maintenance activities in aircraft construction and repair?
• What types of training are required for ACRM professionals?
• What type of corrosion occurs when two dissimilar metals are in contact with an electrolyte?
• What is the main purpose of a fillet weld?
• What is the alternative term for artificial aging in materials?
• What does the term “composite structure” entail?
• What does the rivet code AD indicate in an MS20 455 AD 4-8 rivet?
• What is a consequence of fuel system contamination in aircraft?
• What heat-treating operation chemically changes the surface of the metal by introducing a high carbide or nitride content?
• Which method may be used to remove corrosion from highly stressed steel surfaces?
• In aircraft maintenance, what does the abbreviation "MMEL" stand for?
• What is the primary reason for routing an I-beam wooden spar?
• Magnetic particle inspection is specifically applicable to which type of metals?
• Which inspection is primarily focused on ensuring the aircraft's readiness?
• What is a key benefit of composite materials in aircraft structure?
• What type of loads does a well-designed rivet joint primarily subject the rivet to?
• What is the purpose of a Continuity Check in electronics?
• What can impurities in fuel lead to in aircraft operation?
• Which wood is commonly used in aircraft structures for its strength and shock-resistance?
• What is the significance of an aircraft's maintenance logbook?
• What aluminum alloy designation indicates no hardening or tempering treatment?
• A well-designed rivet joint is subject to which type of load?
• In which scenario is it acceptable to weld over an existing joint?
• What is the term for lifting or flaking of metal due to corrosion residual product buildup?
• What does AN stand for in military nomenclature?
• What is the benefit of using titanium rivets in aircraft construction?
• Which solvent should be used to clean a part before dye penetrant inspection?
• What type of maintenance generally requires the least amount of downtime for an aircraft?
• What is the outcome of failing to document maintenance history correctly?
• Identify a common type of aircraft engine.
• In aircraft systems, flexible hoses are classified by what dimension?
• What are the common signs of metal fatigue in aircraft structures?
• Which type of particle is generally not used in magnetic particle inspection?
• What is the purpose of conducting a functional test on aircraft systems?
• How frequently should maintenance records be updated?
• What is the primary alloying agent in 2024-T36?
• What type of inspection is required every 12 months for general aviation aircraft?
• What is the function of an aircraft’s landing gear?
• What is the primary material used in 2117 rivets?
• What inspection method effectively identifies subsurface defects in metallic structures?
• What does ACRM stand for?
• What is the primary material used for oxygen and acetylene cylinders?
• What are the primary functions of an aircraft’s electrical system?
• What is a primary goal of the Emergency Response Plan in ACRM?
• Which tool is typically used to set a divider to an exact dimension?
• In aviation maintenance, what does the acronym "TBO" stand for?
• Which material is known to corrode the fastest among the following options?
• Which rivet is used for riveting magnesium alloy structures?
• During which part of aircraft maintenance is torque setting verification most critical?
• What aspect of welding is affected most by internal stresses?
• A bolt with a single raised dash on its head is classified as what type?
• What is the primary function of aircraft maintenance?
• What does a "Log of Modifications" in aircraft maintenance indicate?
• What material layer is used within the vacuum bag pressure system to absorb excess resin during curing?
• What is the correct reading from a micrometer if the measurement is noted as?
• What is the main function of an I-beam wooden spar in aircraft construction?
• How is "airworthiness" defined in the context of aircraft maintenance?
• Why is it crucial to adhere to specified torque settings during aircraft assembly?
• What class of fit are aircraft bolts usually manufactured with?
• What is a "major repair" in the context of aircraft maintenance?
• What do joggles in removed rivet shanks indicate?
• What is the minimum spacing for a single row of aircraft rivets?
• What does "corrosion" refer to in the context of aircraft maintenance?
• What additional property does a brazier head rivet have?
• How does the angle of incidence of an airplane at rest relate to its flight?
• Which metal heat-treating process creates a hard, wear-resistant surface?
• What does the pitot-static system of an aircraft measure?
• What does MS20 mean in the context of a rivet?
• What must the majority of aircraft control cables be checked with to show compliance after the swaging operation?
• In ACRM, who is primarily responsible for ensuring compliance with maintenance schedules?
• What type of equipment is used for destructive testing by measuring diamond indentation?
• Why is fine-grit Aluminum oxide preferred for removing corrosion from stressed steel surfaces?
• What is a primary characteristic of composite materials in aircraft construction?
• What is the main advantage of using Vickers hardness testing?
• Why are clad aluminum alloys used in aircraft?
• In forward horizontal flight, how does the angle of attack of the advancing rotor blade compare to the retreating blade?
• What should be clearly indicated on an aircraft weighing form?
• What does "service life" refer to in aviation terms?
• Which nondestructive testing method is suitable for inspecting metals, plastics, and ceramics for defects?
• Where can technical descriptions of a certificated propeller be located?
• Which of the following is a common non-destructive testing method used in aircraft maintenance?
• What is the main purpose of normalizing in heat treatment?
• What does a flashing white light from the control tower indicate when taxiing an aircraft?
• In the MS20 455 AD 4-8 rivet, what does 455 indicate?
• Which rivet is used for riveting nickel steel alloys?
• Heat treatment enhances which property of metals?
• Which kind of analysis is vital in ensuring aircraft structural integrity?
• How can dimensional inspection of a bearing in a rocker arm be accomplished?
• Which term describes the property of a material that allows it to withstand tearing or shearing?
• Which tool is used to determine piston pin out-of-round wear?
• Which statement is true regarding a cantilever wing?
• Why is a DD rivet heat treated before use?
• What is the function of the aircraft's fuel system?
• What is the purpose of Non-Destructive Testing (NDT)?
• What is a non-electrolytic chemical treatment for aluminum alloys that increases corrosion resistance and paint-bonding qualities?
• What is the major goal of conducting a pre-flight inspection?
• Which of the following is a common component to inspect during routine checks?
• When flaring aluminum tubing for AN fittings, what is the required flare angle?
• How often should a 100-hour inspection be performed on certain aircraft?
• When approaching the rear of an idling turbojet or turbofan, how far does the hazard area extend aft of the engine approximately?
• What method is commonly used to repair composite structures?
• Describe the procedure to access aircraft manufacturer technical manuals.
• Where can the recommended torque value for nuts be found if the specific torque value is not given?
• What is the best way to protect the interior surface of sealed structural steel tubing against corrosion?
• What is the recommended method for removing corrosion from magnesium parts?
• What is the common feature of corrosion in aluminum alloys used in aircraft?
• What does a comprehensive safety audit typically assess regarding an aircraft?
• What are the dimensions of an MS20 430 AD 4-8 rivet?
• What is another name for natural aging in metal treatment?
• Corrosion caused by galvanic action results from what condition?
• Which type of oxide forms quickly when metals or alloys are hot, especially during welding?
• What are the primary materials used in aircraft construction?
• What is the purpose of an Emergency Response Plan (ERP) in aircraft maintenance?
• Which of these materials cannot be heat treated repeatedly without harmful effects?
• Identify the tool primarily used for measuring the thickness of aircraft materials.
• Why is normalizing performed after welding?
• What does the hydraulic system use to operate various flight controls?
• What is the primary purpose of normalizing in heat treating?
• Which document is crucial in tracking alterations made to a specific aircraft?
• Corrosion caused by galvanic action results from what?
• Why are clad aluminum alloys favored in aircraft construction?
• How often should emergency equipment like fire extinguishers be inspected?
• What is the purpose of a riveting process in aircraft assembly?
• What is the maximum permissible grain deviation in wood used for aircraft?
• What is the purpose of stringers in aircraft construction?
• What does a faint line running across the grain of a wood spar typically indicate?