Jason Questions

1 Horsepower is iqual to. 550 ft-lb per square Inch. 550 ft-lb per minute. 33.000 ft-lb per second. 33.000 ft-lb per minute.

The air that we breathe is a physical mixture of gases of which approximately. 2% is nitrogen and 98% is oxigen. 21% is nitrogen and 78% is oxigen. 78% is nitrogen and 21% is oxigen. 98% is oxigen and 2% is other gases.

The law that states: an increase in pressure at any point in confined liquid Will produce an equal increase in the pressure at every other point in the liquid is. Dalton`s law. Pascal`s law. Boyle`s law. Avogadro`s law.

The speed of sound in air is depend on. The altimeter setting. Air pressure. Air temperature. Both air pressure and air temperatura.

The atmospheric pressure at sea level is approximately. 712 millibars. 29.92 inches of wáter. 14.7 p.s.i. 2992 inches of mercury.

The temperatura at which humid air, when cooled at constant pressure becomes saturaled is called. The dew point. The isobaric point. The inversión point. The relative temperatura.

As the temperature of a transistor increases above normal operation range. The electron Flow across the junction changes direction. The semiconductor material from which it is constructed takes on the characteristics of a nonconductor. The electron activity within the transistor decreases. Its electrical resistance decreaases.

The current through a 500 watt, 100 ohra load (resistance) is. 1.12 amperes. 2.0 amperes. 2.24 amperes. 5.0 amperes.

The electrolyte used in a ni-cad battery is a. 30% solution of potassium hydroxide. 70% solution of potassium hydroxide. 30% nickel and 70% cadmium hydroxide solution. 30% nickel and 70% potassium hydroxide solution.

A 400 hz AC circuit contains a 5 henry coil. The inductive reactance in the circuit is. 796 ohm. 796 henry. 12,560 ohm. 12,560 henry.

When AC power is applied to a capacitive circuit, the current. Lags the voltage by 90 degrees. Leads the voltage by 90 degrees. Lags the voltage by 180 degrees. Leads the voltage by 180 degrees.

The color used to idetify tjhe terminal lug of a 20-gauge aricraft wire is. Red. Blue. Yellow. Orange.

The total resistance of three 47 ohm resistors connected in parallel is. 1.41 ohm. 1.56 ohm. 14.1 ohm. 15.6 ohm.

The working voltage of a capacitor to whitch AC or pulsating DC is applied should be. 707 times the applied voltage. 1,41 times the applied voltage. At least 50% greaser tan the applied voltage. The same as or grealer tan the applied voltage.

The binary number equivalent to the number 9 In the decimal number system is. 0110. 1001. 1015. 1011.

Monel is an alloy consisting of. 10% nickel, 83% sicel, 2% others. 20% nickel, 78% Steel, 2% others. 68% nickel, 29% copper, 3% others. 63% nickel, 22% copper, 10% Steel, 2% others.

The alloy which has the highest strength- 10-weight ratio when combined with aluminum is. Zinc and aluminum. Steel and magnesium. Chrome and nickel. Aluminum and magnesium.

The tensile strength of metals is usually measured in. Foot-pounds. Square inches per pounds. Foot-pounds per square inch. Thousands of pounds per square inch.

A materialist resistance to the forces landing to lear it all the point of the applied load is. The inchest strength. The bearing strength. The yield strength. The tensite strength.

The color of grade 100 high-lead aviation gasoline is. Green. Blue. Straw. Red.

The term “wide cut” used in aviation fuel means. A kerosene type of fuel. An AVGAS type of fuel. A jet fuel containing both naphtha and keresene. A jet fuel containing AVGAS and jet -A or jet-B.

The color band on a line carrying hydraulic fluid is. Blue and yellow. Grey and blue. Green and yellow. Orange and blue.

A hydraulic fluid which has a Good a resistance to conbustion and a low degree of evaporation at normal temperature possessed. A low flash point. A high flash point. A low fire point. A high viscosity.

Aircraft bolts are almost always manufactured in. The class 1, loose fit. The class 2, free fit. The class 3, médium fit. The class 4, close fit.

Jo-bolt is. A type of clevis bolt. A flush head threadless bolt. A han bead threadless bolt. An internally thrended three-piece nivel.

A piece of aircraft hardware is designeated with a part number AN320-10. The digit 10 means. A number 10 bolt. 10 threads per inch. A castellated shear nut. 5/8 inch diameter.

The acronym SAB used for aircraft materials means. Society of aerospace engineers. Sntandard of aerospace engineering. Society of automotive engineers. Standard of aviation engineering.

The material identified by two raised dashes on the head of fan aircraft bolt is. Cadmium plated nickel Steel. 2024-T aluminum alloy. Corrosión resistant Steel. Commercially pure aluminum.

A bolt with an “X” inside a triangle on the head is classified as. AN aluminum alloy bolt. NAS close tolerance bolt. NAS standard aircraft bolt. AN corrosión resistant Steel bolt.

Clevis bolts are used. Mostly in landing gear assenblies. Only for shear load applications. For tensión and shear load conditions. When external tensión loads are applied.

The smallest size cable that may be used in aircraft primary control systems is. 1/8 inch. 3/15 inch. ¼ inch. 5/15 inch.

A 7 X 19 cable. Consists of 7 wires of 19 strands. Consist of 7 strands of 19 wires. Has 7 strands and measures 19 inches in length. Has 19 strands and measures 7/15 inch in diameter.

The five tuck woven splice is. Not authorizied for aircraft use. Authorized provided the splice is swaged. Autorized for 7 X 19 cable only. Authorized for both 7 X 7 and 7 X 19 cables.

The strength of a nicopressed control cable assenbly is. 85% of the original cable strength. 100% of the original cable strength. 120% of the original cable strength. 150% of the original control cable.

Aircraft control cables may be made of. Aluminum or copper. Copper or stainless Steel. Preformed Steel of stainless Steel. Galvanized carbon Steel or stainless Steel.

The type of diagram used to explain a principle of operation rather tan show the parts as the actually appear is. A Flow chart. A block diagram. A schematic diagram. An orthographic projection.

How many faces of an object are visible in an isometric drawing. 3. 4. 5. 6.

The line illustrated below is known as a. Hidden line. Phantom line. Long brake line. Short brake line.

The tittle block of an engineering drawing is located at. Lower left hand corner of the drawing. Lower right hand corner of the drawing. Upper left hand corner of the drawing. Upper right hand corner of the drawing.

The type of bearing used where the bearing is sibjected to radial loads only is. Steel plain bearing. Dúplex ball bearing. Simplex ball bearing. Straight roller bearing.

Duckbill pliers are used. For crimping metal. For grasping odd shaped part. For twisting safety wire. To make adjustments in light places.

50. Holes are smoothed and enjarged to exact size by using. A reamer. A drill bit. A rat tail file. A round tapered file.

The hand tool used to cut external threads on round stok is. A lathe. A tap. A die. A broach.

Of the thimble of a standard micrometer calliper, graduated in thousandths of an inch, is turne done full revolution, the spidle Will move. 0.010 inch. 0.025 inch. 0.040 inch. 0.050 inch.

The tool used to find the center of a shaft or other cylindrical work is a. Surface gauge. Dial indicator. Combination set. Micrometer calliper.

A joggle is. A flanged angle formed by shrinking. A hole cut in rib section, of fuselage frame. An offset formed on an angle strip. A flanged angle formed by cutting.

A piece of metal is bent to a certain radius. The curvature of the bend is referred to as the. Bend line. Neutral line. Bend radius. Bend allowance.

To reduce the possibilty of cracking and to insure more uniform strength characteristics, bends in sheet metal should be made. 30 degreees to the grain. 45 degrees to the grain. 60 degrees to the grain. Perpendicular to the grain.

The sharpest bend that can be placed in a piece of metal without critically weakening the part is called the. Bend allowance. Neutral radius of bend. Minimum radius of bend. Máximum radius of bend.

The term “cold Flow” is generally associated with. Rubber hose. Hydraulic lock. Vaporizing fuel. Oxygen lines.

When under pressure, a flexible hose. Expands in length and diameter. Contracts in length and diameter. Expands in length and contracts in diameter. Contracts in length and expands in diameter.

The principal advantage of teflón hose is. Its low cost. Its flexibility. Its operating stregth. Its corrosión resitance.

The international marking of an instrument airline is a. Wavy band. Zigzag line. Series of dots. Plain White band.

The 2 types of threads provided on AN sttings are. Universal and bulkhead threads. Tuve and pipe threads. Square and ACME threads. Parallel and tapered threads.

Scratches or nicks on the straigth portion of aluminum alloy rubing may be repaired if they are no deeper tan. 1/32 inch. 1/16 inch. 10% of the waill thickness. 20% of the wall thickness.

When a turnbuckle is tightened, the number of exposed threads showing outside the barrel at each end is. 1 thread. 2 thread. 3 thread. 4 thread.

The general rule for finding the proper nivel diameter is. ¼ the river`s length. ½ the river`s length. Three times the thickness of the thinnest sheel. Three times the thickness of the thickest sheet.

The mínimum Edge distance for nivel is. Twice the diameter of the rivet shank. Twice the diameter of the rivet. Three times the diameter of the rivet head. ½ the thickness of the material being riveted.

The dimensions of an AN430-4-8 river are. 1/8 inch in diameter and ½ inch long. 4/16 inch in diameter and 8/16 inch long. 4/16 inch in diameter and 8/35 inch long. 4/32 inch in diameter and 8/32 inch long.

Most rivers used in aircraft construction have. Dimples. A raised dor. Smooth heads without markings. Two raised bars on their heads.

A well-desingend river joint Will subject the rivers to. Shear loads. Tensión loads. bending loads. Compresión loads.

The primary factor to be considered when selecting an oxyacctylene lorch tip is. Shape of the Weld. Size of the Weld rod. Location and position of the material. Thickness of the material to be welded.

The only aceptable lubricant for oxygen equipment used in welding is. Castor oil. Oxy-7 oil. Castile oil. Bee`s wax.

The most important consideration when selecting a welding rod is. The type of torch. Regulator pressure. The type of metal to be welded. The thickess of the metal to be welded.

Silver soldering is a method of. Brazing. Welding. Oxidizing. Carburizing.

Thermoseltting plastic materials are those which. May be reshaped as often as necessary. Are softened by apllication of heat. Are hardened by the application of hear. Are not affected by the application of heat.

Honeycomb material used to replace damaged aluminum coreo f honeycomb bonded siructures is usually. Titanium. Magnesium. Fibreglass. Hardened plastic.

The simples test in checking for delaminated área on a honeycomb structure would be. Zyglo. X-ray. Ultrasonic. The metallic ring test.

The purpose of refrigerating aluminum that has been solution heat threated is to. Harden it. Increase its ductility. Keep it relatively soft. Increase its corrosión resistance.

Aluminum forming without annealing should be done immediately after. Aging. Heating. Quenching. Anodizing.

The types of quenching médium generally used when hardening alloy steels are. Oil and brine only. Wáter, oil or brine. Air, wáter or brine. Air, wáter or oil.

the appropriate inspection method for detecting intergranular corrosión in non-ferrous metal is. Eddy current. Accoustinc emisión. Spectography. Magnetic particle.

Magnetic particle inspection is sultable for. Copper alloys. Iron alloys. Aluminun alloys. Magnesium alloys.

When using dye penetrants a minute crack Will require a relatively. Highly poshed Surface. Longer penetrating time. Shorter penetrating time. Shorter developing time.

When trying to locate Surface faults by magnetic particle inspection, the method of magnetization primarilly used is. An infrared light with a fluorescent penetrant. An ultraviolet light with a fluorescent penetrant. A magnetic field produced by DC current. A magnetic field produced vy AC current.

Two mating surfaces subject to slight relative motion may be prone to. Stress corrosion. Fretting corrosión. Surface corrosión. Intergranular corrosión.

When coducting a wáter washable liquid petrant test, the developer is applied. After penetrant is removed and the part is dry. Before removal of the emulsifier. Immediately before the penetrant is applied. Immediately after the penetrant has been applied.

An Eddy current is a circulating electrical current indused in a conducting material by. X-rays. Gamma rays. Piezoelectric forcé. A magnetic field.

After wel magentic particle inspection, a rinse bath is. Not necessary. Necessary to aid in removing remnat magnetism. Necessary to provide lubrication. Necessary to remove magnetic particles.

On a control cable woven splice terminal, the 5-tuck woven splice may be utilized on 7x7 flex cable and 7x19 extra flex cable; however?. This type of terminal will only develop 75% cable strength. This type of terminal will develop 100% cable strength. This type of terminal is prohibited on 7x19 cable. This type of terminal develops only 50% cable strength.

In general, how would you choose the diameter of a rivet?. 2x thickness of metal. 3x thickness of metal. 4x thickness of metal. Equal to metal thickness.

Shot peening is used to improve?. Reduce weight. Improve corrosion resistance. Improve strength and fatigue at the surface of metal parts. Enhance electrical conductivity.

Types of emergency exits are. Type A, B, C, D. Type I, II, III, IV. Primary and secondary exits. Standard and auxiliary exits.

The third digit in the SAE steel code stands for. Alloy type. Carbon range. Heat treatment type. Tensile strength.

Maximum threads showing on a turnbuckle are. 5 threads. 3 threads. 2 threads. 4 threads.

Ultimate tensile strength of metal is measured in. Kilograms per square meter. Newton meters. Thousands of pounds per square inch. Inches of mercury.

ATA 100, what is the fuselage number. 51. 52. 53. 54.

MS20470AD4-6: What does the 4-6 stand for. 4/32 diameter and 6/16 length (1/8 - 3/8). 4 mm length and 6 mm diameter. 4/16 diameter and 6/32 length. 4 inches length and 6 inches head.

What should be the included angle of a twist drill for soft material. 118 degrees. 90 degrees. 135 degrees. 100 degrees.

The sharpest bend that can be placed on a piece of metal without critically weakening the part is called?. Bend allowance. Neutral axis. Minimum radius of a bend. Grain radius.

How many faces are shown on an isometric drawing. 1. 2. 3. 4.

What drawing has all vertical lines drawn as vertical and all horizontal lines at an angle of 30 degrees. Oblique drawing. Perspective drawing. Isometric drawing. Orthographic drawing.

How do you calculate moment. Weight ÷ Arm. Weight × Arm. Arm ÷ Weight. Moment ÷ Arm.

What is not used to quench alloys after heat treatment. Water. Brine. Oil. Air.

Your bend allowance runs from. Neutral axis. Bend tangent lines. Bend allowance point. Outside mold line.

The minimum fuel for weight and balance computations is no less than the quantity for. 1 hour of operations. 1/2 hour of operations. Full tank capacity. Reserve fuel only.

Installation of flex hose assemblies requires the hose be what length. 5-8% shorter to save weight. Exact length of assembly. 5-8% longer to avoid tension. Double the rigid line length.

What is the lightest specific gravity. Mercury. Water. Gasoline. Oil.

What is the most important factor when selecting torch tip. Fuel type. Welding speed. Thickness of material. Torch brand.

What is the first consideration when selecting a welding rod. Cost of the rod. Proper material. Length of the rod. Diameter of the rod.

What amount of damage is allowable in hydraulic lines for a scratch repai. 5%. 10%. 15%. 20%.

When drilling a hole, what percentage is left for reaming. 001 - .003. 010 - .015. 005 - .008. 020 - .025.

The tendency of a force to produce rotation around an axis is called. Torque. Moment. Stress. Bending force.

The distance between forward and rearward limits within which the aircraft must be operated is called. Maximum takeoff weight. C of G range. Zero fuel range. Envelope limit.

Tensile strength is measured in. Kilopascals. Kilograms per square cm. Thousands of pounds per square inch. Newton meters.

What type of bearing is designed to take a radial load. Thrust bearing. Straight roller bearing. Ball bearing. Needle bearing.

What type of steel is heat treatable. Alloy steel. Mild steel. Stainless steel. Galvanized steel.

What is the term for the leading edge of the mean aerodynamic chord. TEMAC. LEMAC. Spar point. Wing root.

Where is the weight installed on a flight control. Forward of the hinge center line. At the trailing edge. At the center of the control surface. At the wingtip.

The equivalent of one BTU is. 1000 foot-pounds. 778 foot-pounds. 500 foot-pounds. 900 foot-pounds.

What method forms a spherical impression into the surface of the meta. Rockwell tester. Vickers tester. Brinell tester. Knoop tester.

What is the normal quenching media for steel. Oil. Water. Brine. Air cooling.

Precipitation heat treating does what. Softens the material. Greatly increases strength and hardness (artificial age hardening. Removes corrosion. Prepares for welding.

When bending sheet metal, how should the bend be made relative to the grain. Along the grain. Across the grain (perpendicular). Parallel to the grain. In any direction.

The line at which the metal starts to bend and the line at which it stops bending is called. Grain line. Bend tangent line. Neutral axis. Outer mold line.

Hydraulic pressure is expressed in. Kilopascals. Pounds per square inch (PSI). Newton-meters. Torr.

Air instrument lines are marked with. Blue solid line. Orange/gray band with zigzag lines. Yellow dashed line. Green dotted line.

Maximum allowable scratch or nick depth on aluminum alloy tubing that may be repaired is. 5%. 10%. 15%. 20%.

The term 'cold flow' refers to what condition. Loss of elasticity. Cold weather cracking. Deep permanent impressions left on a hose by the clamp. Surface hardening.

Maximum allowable patch on a tube is. 1/4 of the tube diameter. 1/2 of the tube diameter. Entire circumference. No patches allowed.

Scratches or nicks on a straight part of alloy tubing may be repaired provided they are not deeper than. 5% of wall thickness. 10% of wall thickness. 15% of wall thickness. 20% of wall thickness.

The most suitable type of hose for carrying petroleum synthetic fluids is. Rubber. Teflon. Polyethylene. Vinyl.

What type of diagram locates components with respect to each other within a system. Pictorial diagram. Schematic diagram. Flowchart. Wiring layout.

The most common rivet used in aviation with a dimple on its head identifies which material. 2024-T aluminum. 2117-T (aluminum) AD. 5052-T aluminum. Stainless steel.

What is the minimum rivet pitch when installing rivets. 2 rivet diameters. 3 rivet diameters. 4 rivet diameters. 5 rivet diameters.

A desirable property of a rivet is. High hardness. It must be soft or comparatively soft to form a good head. Very brittle. High tensile strength.

What type of load does a rivet take in a properly designed joint. Tension. Compression. Shear. Torsion.

Two dashes on the head of a bolt or rivet indicate. Stainless steel alloy. Composed of 2024-T aluminum alloy. 5056 aluminum alloy. 1100 aluminum alloy.

Nitriding is a process which. Softens the material. Forms a hard case on a part to resist wear. Increases corrosion resistance only. Prepares for painting.

Fluorescent penetrant inspection uses. Infrared light. Black light. Visible light. Laser light.

Longer dwell time in dye penetrant inspection is necessary for. Large cracks only. No difference in crack size. Small cracks to be visible. Surface dirt removal.

The easiest way to detect delamination in a honeycomb is. X-ray inspection. Ultrasonic scan. Metallic ring (coin tap) test. Eddy current.

Magnetic particle inspection is used primarily to detect. Internal voids only. Surface texture. Flaws on or near the surface. Non-metallic inclusions.

Which type of current is usually used to demagnetize aircraft parts?. Direct current. Decreasing AC current. Pulsed DC. Static magnetic field.

What are the two types of demagnetization used in magnetic particle inspection. Pulsed and continuous. Longitudinal and circular magnetization. Surface and deep inspection. Dry and wet method.

To detect fine cracks in dye penetrant inspection what is required. Higher temperature. Longer penetrating time. Stronger light. Thicker dye.

Before applying developer in dye penetrant inspection you must. Heat the part. Dry the part. Apply oil. Cool the part.

What kind of NDT inspection involves drifting electrons through metal under electromagnetic fields. Ultrasonic. Radiography. Eddy current. Visual inspection.

Does lead refract or absorb X-rays. Refracts X-rays. Absorbs X-rays. Reflects X-rays. Conducts X-rays.

What type of parts are suitable for magnetic particle inspection. Aluminum parts. Iron and steel parts. Plastic components. Composite structures.

Which NDT method requires the least preparation. Dye penetrant. Magnetic particle. Eddy current or ultrasonic. Radiography.

The center head on a combination set is used to. Measure thickness. Find the center of shafts or cylindrical work. Check hole diameter. Mark drilling spots.

If a micrometer thimble is turned one full revolution, how much do the jaws move. .010. .025. .050. 075.

Where is an eyebolt used. Where external tension loads are applied. Where shear loads are applied. Where compressive loads are applied. Where rotational loads are applied.

In what class are aircraft bolts generally manufactured. Class 1 (loose fit). Class 2 (snug fit). Class 3 (medium fit). Class 4 (tight fit).

Two raised dashes on a bolt indicate it is made of. Stainless steel. 2024 aluminum alloy. 5052 aluminum alloy. 7075 aluminum alloy.

A honeycomb structure is bonded under. Water pressure. Vacuum and heat. Open air. Low temperature only.

After welding aircraft tubing, it should be flushed with. Hot linseed oil or petrol base oil. Water and detergent. Compressed air. Hydraulic fluid.

Flux is removed from a weld to prevent. Rust coloration. Corrosion. Cracking. Surface hardening.

Alclad aluminum indicates the sheet has been treated for corrosion by. Anodizing. Coating it with pure aluminum. Painting. Applying sealant.

When metals of different groups come in contact and corrode, it is called. Fretting corrosion. Pitting corrosion. Galvanic corrosion. Intergranular corrosion.

The color coding for engine oil system tubing is. Red. Yellow. Blue. Green.

When inflating oleos, it is recommended to use. Air. Nitrogen. Oxygen. Helium.

Surface corrosion on aluminum alloys is easily detected by the formation of. Red rust. Black spots. White deposit on the surface. Green patina.

What is the cube root of 99 divided by the square root of 1. 3.15. 4.626. 5.10. 6.25.

Where are title blocks usually located on engineering drawings. Upper left-hand corner. Lower right-hand corner. Top center. Bottom center.

What is the general class of hardware used in aviation. Loose fit, class 1. Medium fit, class 3 fit. Tight fit, class 5. Snug fit, class 2.

Electrical resistance increases as. Temperature decreases. Temperature increases. Current increases. Voltage drops.

NiCad battery electrolyte composition is approximately. 50% sulfuric acid and 50% water. 30% potassium hydroxide and 70% water. 100% distilled water. 90% acid and 10% water.

Transform 9 into a binary number. 1001. 1100. 1010. 1111.

In series-parallel resistance, total resistance is simplified by using. RT = sum for both series and parallel. RT = R1 + R2 + R3 for series; reciprocal formula for parallel. RT = product of all resistances. RT = difference of resistances.

What is the most common head marking on rivets used in modern aircraft?. Flat head. Dimpled head (2117-T AD). Raised head. Flush head.

The property of a metal that allows it to be permanently drawn, bent, or twisted without breaking is?. Elasticity. Hardness. Ductility. Malleability.

What type of corrosion occurs when two mating surfaces subject to slight relative motion. Galvanic corrosion. Pitting corrosion. Fretting corrosion. Intergranular corrosion.

Clevis bolts are designed to be used only where. Tensile loads occur. Shear loads occur. Axial loads occur. Bending loads occur.

What liquid has the lowest specific gravity. Mercury. Water. Gasoline. Hydraulic fluid.

Pascal's Law states that pressure applied to a confined liquid is transmitted how. In a straight line only. Unevenly depending on container shape. Equally and undiminished in every direction. Only upwards.

Which AN number refers to self-tapping screws. AN365, AN366. AN504, AN506, AN530. AN310, AN320. AN3 - AN20.

What is cold flow in rubber clamps. Rubber hardening. Permanent marking on tubing due to clamp pressure. Rubber softening. Sealant leakage.

Where are balance weights typically located when balancing a flight control surface. Aft of the hinge line. Forward of the hinge line. On top of the control surface. Inside the fuselage.

Magnetic fields in magnetic particle inspection are. Vertical and horizontal. Longitudinal and circular. Clockwise and counterclockwise. Random.

Liquid penetrant inspection with fluorescent dye is visible under what type of light?. White light. Infrared light. Ultraviolet (black light). Laser light.

Shot peening is used to improve. Corrosion resistance only. Surface aesthetics. Strength and fatigue resistance at the surface. Electrical conductivity.

What is anodizing. Chemical cleaning. Electrochemical process that creates a hard oxide film. Painting process. Welding preparation.

What is alodining. Heat treatment process. Chemical conversion coating for corrosion protection. Adhesive bonding process. Magnetic inspection.

What is the standard size of a C-size engineering drawing. 8.5” x 11”. 17” x 22”. 24” x 36”. 11” x 17”.

The formula for power is. Power = Force + Distance. Power = Force x Distance / Time. Power = Distance ÷ Force. Power = Torque x RPM.

When bending a sheet of aluminum, the bend should be made. Parallel to the grain. 90 degrees to the grain. At any angle to the grain. 45 degrees to the grain.

What is the purpose of print tolerances in a blueprint title block. To indicate material type. To establish default tolerances when none are specified. To show exact color codes. To list designer initials.

Which magnetic particle inspection method is most widely used. Residual method. Continuous method. Dry powder only. Wet visible method.

A joggle is. A type of rivet. An offset formed on an angle strip. A misalignment in a metal sheet. A method to thicken metal edges.

To eliminate magnetic flux on pieces being magnetically inspected: Increasing intensity. Applying chemical bath. Decreasing intensity. Changing direction of inspection.

Most rivets used on modern aircraft have which head markings?. Smooth head. Star head. Dimpled head. Indented square head.

Alloy steel bolts smaller than ¼ inch should not be used in?. Secondary structures. Temporary repairs. Primary structures. Non-structural components.

Natural aging is?. Rapid cooling in air. Reaching maximum strength properties at room temperature. Controlled heating in furnace. Aging by exposure to high pressure.

Two dashes on a rivet head mean?. That it is made of 5052 alloy. That it is made of 1100 alloy. That it is made of 2024T4. That it is stainless steel.

The thimble on a micrometer is turned once; how much movement is it?. .010. .025. .050. .075.

What is the minimum edge distance of a rivet?. 1.5x diameter of rivet. 2x diameter of rivet. 3x diameter of rivet. Equal to rivet diameter.

What is the welding method of silver soldering?. Arc welding. Brazing. Spot welding. Fusion welding.

Why are metal parts put in the freezer after heat treatment?. To speed up cooling. To slow the aging process. To harden the metal instantly. To remove residual stress.

Thermosetting plastic is?. Plastic that melts under heat. Application of heat to set up and harden the plastic. Plastic that remains flexible under cold. Plastic cured only by UV light.

Why is lead used with X-ray inspection?. It reflects X-rays. It generates X-rays. High absorption of alpha rays. It diffuses radiation.

What are the alloys in 5056?. Copper. Magnesium. Zinc. Silicon.

Stainless means?. Aluminum + Nickel. Iron + Zinc. Nickel + Chromium. Copper + Zinc.

Which stainless steel is heat treatable?. Ferritic. Austenitic. Martensitic. Duplex.

Aluminum welding uses what current?. A/C. D/C. Pulsed current. High frequency only.

In magnetic particle inspection, the magnetic fields are what?. Only longitudinal. Longitudinal and circular. Randomly oriented. Always circular.

Nitriding is hardening metal by?. Quenching in oil. Heating metal and surrounding it with ammonia gas. Cooling rapidly in water. Annealing under vacuum.

What method of magnetic particle inspection is most widely used?. Residual method. Continuous method. Wet method only. Dry powder method.

What is the meaning of print tolerance as used in the title block of an aircraft blueprint?. Specifies material strength. Establish the tolerance when not otherwise shown on a dimension line. Defines the blueprint scale. Identifies blueprint version.