WorksheetsA.R_MAJOR EXAM.3
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
If a single-rotor helicopter is in forward horizontal f light, the angle of attack of the advancing blade is
a)
more than the retreating blade.
b)
equal to the retreating blade.
c)
less than the retreating blade.
2.
What is the purpose of the free-wheeling unit in a helicopter drive system?
a)
It disconnects the rotor whenever the engine stops or slows below the equivalent of rotor RPM.
b)
It connects the rotor whenever the engine stops or slows below the equivalent of rotor RPM.
c)
It disconnects the rotor whenever the engine go or slows below the equivalent of rotor RPM.
3.
If a pilot reports that an airplane flies left wing heavy, this condition may be corrected by
a)
increasing the angle of incidence of the left wing, or decreasing the angle of incidence of the right wing, or both.
b)
increasing the angle of incidence of the right wing, or decreasing the angle of incidence of the right wing, or both.
c)
increasing the angle of incidence of the left wing, or increasing the angle of incidence of the right wing, or both.
4.
The angle of incidence is that acute angle formed by
a)
a line parallel to the wing chord and a line perpendicular to the longitudinal axis of the aircraft.
b)
a line parallel to the wing chord and a line parallel to the longitudinal axis of the aircraft.
c)
a line parallel to the wing chord and a line parallel to the lateral axis of the aircraft.
5.
If the right wing of a monoplane is improperly rigged to a greater angle of incidence than designated in the manufacturer’s specifications, it will cause the
a)
airplane to be off balance both laterally and directionally.
b)
airplane to be on balance both laterally and directionally.
c)
airplane to be off balance or laterally and directionally.
6.
The vast majority of aircraft control cables are terminated with swaged terminals, that must be
a)
checked with a go-no-go gauge after, to show compliance with the manufacturer’s requirements after the swaging operation.
b)
checked with a go-no-go gauge before and after, to show compliance with the manufacturer’s requirements before the swaging operation.
c)
checked with a go-no-go gauge before and after, to show compliance with the manufacturer’s requirements after the swaging operation.
7.
When inspecting a control cable turnbuckle for proper installation, determine that
a)
the safety wire ends are wrapped a maximum of four turns around the terminal end shanks.
b)
the safety wire ends are wrapped a minimum of five turns around the terminal end shanks.
c)
the safety wire ends are wrapped a minimum of four turns around the terminal end shanks.
8.
Where does the breakage of control cable wires occur most frequently?
a)
Breakage usually occurs where cables pass over pulleys and through fairleads.
b)
Breakage usually occurs where cables pass through pulleys and over fairleads.
c)
Breakage usually occurs where cables pass over pulleys and over fairleads.
9.
Which statement concerning the 100-hour inspection of an airplane equipped with a push-pull tube-type control system is true?
a)
The threaded rod ends should be checked for the amount of thread engagement by means of the inspection patch provided.
b)
The threaded rod ends should not be checked for the amount of thread engagement by means of the inspection hole provided.
c)
The threaded rod ends should be checked for the amount of thread engagement by means of the inspection hole provided.
10.
During inspection of the flight control system of an airplane equipped with differential-type aileron control, side-to-side movement of the control stick will cause
a)
each aileron to have a greater up travel (from the streamlined position) than down travel.
b)
each aileron to have a greater up travel (from the streamlined position) than up travel.
c)
each aileron to have a greater down travel (from the streamlined position) than down travel.
11.
The braking action of a Cleveland disk brake is accomplished by compressing a rotating brake disk between two opposite brake linings. How is equal pressure on both sides of the rotating disk assured?
a)
By allowing the caliper to float to automatically equalize as pressure is applied to the propeller.
b)
By allowing the caliper to float to automatically equalize as pressure is applied to the rotor.
c)
By allowing the float to caliper to automatically equalize as pressure is applied to the rotor.
12.
The repair for an out-of-tolerance toe-in condition of main landing gear wheels determined not to be the result of bent or twisted components consists of
a)
shimming the axle in the oleo trunnion.
b)
inserting, removing, or changing the location of washers or spacers at the center pivotal point of the scissor torque links.
c)
placing shims or spacers behind the bearing of the out-of-tolerance wheel or wheels.
13.
On all aircraft equipped with retractable landing gear, some means must be provided to
a)
retract and extend the landing gear if the normal operating mechanism fails.
b)
extend the landing gear if the normal operating mechanism fails.
c)
prevent the throttle from being reduced below a safe power setting while the landing gear is retracted.
14.
Which statement is true with respect to an aircraft equipped with hydraulically operated multiple-disk type brake assemblies?
a)
Set parking brake when brakes are hot.
b)
Do not set parking brake when brakes are hot.
c)
Do not set parking brake when brakes are cold.
15.
How can it be determined that all air has been purged from a master cylinder brake system?
a)
By operating a hydraulic unit and watching the system pressure gauge for smooth, full-scale deflection.
b)
By noting whether the brake is firm or spongy.
c)
By noting the amount of fluid return to the master cylinder upon brake release.
16.
What function does the absolute pressure regulator perform in the pneumatic power system?
a)
Regulates the compressor exhaust air to provide a stabilized source of air for the compressor.
b)
Regulates the compressor inlet air to provide a stabilized source of fuel for the compressor.
c)
Regulates the compressor inlet air to provide a stabilized source of air for the compressor.
17.
What is the purpose of using backup rings with O-rings in hydraulic systems above 1,500 PSI?
a)
Prevent low pressure from extruding the seal between the moving and stationary part.
b)
Prevent high pressure from extruding the seal between the stationary part.
c)
Prevent high pressure from extruding the seal between the moving and stationary part.
18.
The purpose of the pressure regulator in a hydraulic system is to
a)
maintain system operating pressure within a predetermined range and to unload the pump.
b)
maintain system operating pressure within a determined range and to unload the pump.
c)
maintain system operating pressure within a predetermined range and to load the pump.
19.
What is the smallest terminal stud allowed for aircraft electrical power system
a)
Number 6
b)
Number 8
c)
Number 10
20.
The strength and stiffness of a properly constructed composite build up depends primarily on
a)
A 60% matrix to 40% fiber ratio
b)
The orientation of the plies to the load direction
c)
The ability of the fibers to transfer stress to the matrix
21.
Which of the following drill bit types work best when drilling an aramid fiber (kevlar(c)) composite laminate?
a)
Tool steel with standard grind
b)
Diamond dust coated
c)
Carbide W-point
22.
What should be included angle of a twist drill for hard metal
a)
118 degree
b)
100 degree
c)
90 degree
23.
Alloy 2117 rivets are heat treated
a)
By the manufacturer and do not require heat treatment before being driven.
b)
By the manufacturer and but require reheat treatment before being driven.
c)
To a temperature of 910 to 930 degree fahrenheit and quenched in cold water
24.
Repairs or splices involving stringers on the lower surface of stressed skin metal wings are usually
a)
Not permitted
b)
Permitted only if the damaged does not exced 6" in any direction
c)
Permitted but are normally more critical in reference to strength in tension than similar repairs to the upper surface.
25.
Shallow scratches in sheet metal may be repaired by
a)
Burnishing
b)
Buffing
c)
Stop driling
26.
A piece of sheet metal is bent to a certain radius. The curvature of the bend is referred to as the
a)
Bend allowance
b)
Neutral Line
c)
Bend radius
27.
Which of the following aircraft circuits does NOT contain a fuse/circuit breaker?
a)
Generator circuit
b)
Air-conditioning circuit
c)
Starter circuit
28.
What speed must an eight -pole ac generator turn to produce 400-herts ac?
a)
400 RPM
b)
1,200 RPM
c)
6.000 RPM
29.
What is used to polish commutators or slip rings?
a)
Very fine sandpaper
b)
crocus cloth or fine oilstone
c)
Aluminum oxide or garnet paper
30.
A typical barrier type aircraft terminal strip is made of
a)
Paper-base phenolic compound
b)
polyester resin and graphite compound
c)
layered aluminum impregnated with compound
31.
A term commonly used when 2 or more electrical terminals are installed on a single lug of a terminal strip is
a)
Strapping
b)
Piggy backing
c)
Stacking
32.
Arcing at the brushes and burning of the commutator of a motor may be caused by
a)
Weak brush springs
b)
Excessive brush spring tension
c)
Low mica
33.
What is the frequency of most aircraft alternating current
a)
115 Hertz
b)
400 Hertz
c)
60 Hertz
34.
What is the maximum number of bonding jumper wires that may be attached to one terminal grounded to a flat surfaces?
a)
3
b)
2
c)
4
35.
Electrical circuit protection devices are installed primarily to protect the
a)
Switches
b)
Units
c)
Wiring
100 %
