..EXAMEN DE INGLES 51-100

What is the link between the engineers who design an aircraft and the workers who build, maintain, and repair it?. The hangars, tools, technical orders and ladders. The hangars and ladders. The tools and technical orders. The drawings and prints.

What may damage the Dracon?. The excessive water. The excessive heat. The excessive sun. The excessive wind.

What creates the dissymmetry of lift in a helicopter?. The differential torque between two rotors. The wind during hovering or vertical flight. The horizontal flight or the differential tilt. The horizontal flight or wind during hovering.

What is an important consideration when choosing material to use in airplane parts?. The density of materials. The volume of materials. The hardness. The strength.

What side have to be deburred during a tubing flaring job?. Both ends by the inside and the outside tubing. The outside. The inside. The inside and the outside.

In how many groups are damages classified?. From small dents to holes. From negligible to big damages. Into four specific groups. Into four general groups.

Whenever possible, how should damaged tubing and fluid lines be repaired?. Should be repaired with good parts. Should be repaired with bright parts. Should be repaired with new parts. Should be repaired with overhauled parts.

What does a compression force try to do?. It tries to crush an object. It tries to twist an object. It tries to slice or to cut an object. It tries to stress an object.

In what body parts of the body can composite products be very harmful?. In the skin, eyes and lungs. In the hand, feet and hair. In the chest, arms and face. In the elbow, fingers and nose.

What effect can grease and dirt accumulation produce on the air-cooled engine?. Produce a cooling effect. Produce a refrigerating effect. Produce an insulation effect. Produce a weight increase.

Why is zinc chromate primer applied to metallic surfaces?. Because the covering is corrosion resistant. Because the covering has a nice color. Because it protects it from the sun. Because the covering is enamel or lacquer.

Which are corrosion resistant metals?. Nickel steels or aluminum metals. Chrome-vanadium or chromium-iron metals. Aluminum or copper metals. Chrome-nickel or stainless steels metals.

What precautions must be taken when cleaning assembled aircraft with chemical cleaners?. They must be used with great care. They must be used in open places. They must not be used with sun light. They must be used with mask and special work cloth.

What is the common name for the corrosion between different metals?. Electrolytic or dissimilar metals corrosion. Intergranular or dissimilar metals corrosion. Chemical or dissimilar metals corrosion. Spot welding or similar metals corrosion.

What do you have to check before using the grinder?. The bench grinder. The abrasive grain. The wheel for cracks. The electrical power.

What type of energy is velocity of the air?. Potential energy. Kinetic energy. Work energy. Static energy.

What do you inspect in a scriber before using it?. The condition. The serial number. The points for sharpness. The length.

What must the mechanic do before installing a line assembly in an aircraft?. Inspect the line and fitting carefully. Inspect the line carefully. Inspect the line, tools and fitting carefully. Inspect the line, fitting, maintenance manual and tools carefully.

What inspection should be accomplished at the torque wrench before each use?. Visual inspection for damage. Visual inspection for calibration. Visual inspection for cleanness. Check the instrument reading.

When a helicopter is being weighed, what location must be known?. The longitudinal weighing point. The longitudinal and lateral weighing points. The lateral weighing point. The longitudinal, vertical and lateral weighing points.

What is the best barrier between metal and corrosion?. The use of best cleaning. A good paint finish. A field treatment. The wet wash.

Where must the mechanic avoid using clamps in flexible hoses?. Close to electric lines. In pressurization areas. At any locations. Where the clamp can restrict or prevent hose flexure.

What happens during an autorotation in a helicopter?. The engine does not supply power. The engine is in maintenance. The helicopter is in a hovering position. The coning is downward.

What material is used to build a twist drill?. Crome vanadium steel and high-speed carbon alloy steel. Crome steel alloy and high-speed alloy steel. Carbon steel and high-speed alloy iron. Carbon steel and high-speed alloy steel.

How many forms of corrosion attack on aluminum alloys are particularly serious?. Two. Three. Four. Five.

What flame has to be used for welding chrome molybdenum?. A soft neutral flame. A strong neutral flame. A big strong flame. A medium soft neutral flame.

What use must never be given to a screwdriver?. Use it like pliers or punches. Use it like chisels or punches. Use it like a fork or knife. Use it like a stone or hammer.

What happens to air as altitude increases?. The air becomes denser. The air becomes less dense. The oxygen proportion changes. The air becomes heavier.

What is an airfoil?. An airfoil is an airplane designed to obtain a desirable reaction from the air through which it moves. An airfoil is a surface designed to obtain a desirable reaction from the air through which it moves. An airfoil is a surface designed to obtain a desirable reaction from the air when it is on the ground. An airfoil is a plane constructed to obtain a desirable reaction from the air through which it moves.

What does a pylon usually have?. Bulkheads, covers, doors, rivets and bolts with nuts. Supports, frames, fuel pump and pipes. Aluminum, alloys, gaskets and beam. Bulkheads, formers, frames, stringers and beams.

What must be shown by a properly designed joint weld?. Uniform in width. The base metal is overheating. The edge of the bead is not in a straight line. The penetration shows gas pockets.

When an aircraft is in a state of equilibrium?. When the sum of all the forces acting on an aircraft and all the weight is equal to zero. When the sum of all items on an aircraft and all the moments is equal to zero. When the aircraft is in stability. When the sum of all the forces acting on an aircraft and all the moments is equal to zero.

What is a machine?. Any device that transforms energy. All devices that use fuel. Any device with which work may be accomplished. Any element with which work may be accomplished.

What do you have to use while you are drilling?. Safety goggles. Safety glasses. Work wear. Clean tools.

What does this advisory circular recommend for working during an engine overhaul?. Always use the proper tool for the job and the one that fits. Use the proper tool for the job and keep it clean. Some time use the proper tool for the job and the one that is new. Drain the engine oil sumps and change the oil filters.

What occurs if a lightning strikes an aircraft?. The electrical current must be eliminated. The electrical current must be conducted through the discharger. The electrical current must be conducted through the electrical systems. The electrical current must be conducted through the structure.

Why do you have to inspect the surrounding area during a structural damage?. For lost of paint. For rivets damage. For evidence of corrosion. For evidence of biggest damage.

How many scales does a micrometer have?. Two. Five. Four. Three.

What do all heat engines have in common?. The ability to convert heat energy into mechanical energy. The ability to convert mechanical energy into heat energy. The ability to use fuel and to deliver power. The ability to support airplanes.

What have to do after assembly all flexible hoses?. Depend the pressure that will supported. Could be re-chequed. Must be proof-tested. May be inspected.

What charge do electrons possess?. Depend on the current flow direction. Neutral charge. Negative charge. Positive charge.

What is the name of the phenomenon that causes flow change?. Supersonic flow. Wave formations. Wave compression. Flow direction.

What do we have to do when we find deep pit in the teeth of a gear?. Send it to manufacturer. Reject it. Rework it. Change the teeth.

What type of continuous maintenance program utilize the airlines?. A 100 hours and annual inspections. A routine and detailed inspections. Progressive annual inspections. A different level of inspections.

What is the principal fluid used for propulsion in every type of powerplant except the rocket?. Naphtha. Petroleum. Air. Fuel.

What are the groups that nuts can be divided into?. Aluminum and non-aluminum nuts. Metal and non-metal nuts. Non-self-locking and self locking nuts. Big and small nuts.

Which is the basic component of a cable?. The wire. The envelope. The metal. The line.

In what heat treatment alloys exists a serious potential fire hazard?. In any alloys. In aluminum alloys. In titanium alloys. In magnesium alloys.

What must be done after an NDT inspection?. The part must be stored. The part must be rinsed. The part must be demagnetized. The part must be cleaned.

What is the wingspan?. The chord of the wing. The length of the wing from leading edge to trailing edge. The length of the wing from wingtip to wingtip. The length of the wing from wingtip to wingroot.