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WorksheetsAir Tech - CPL Exam Ready
Total questions: 100
Worksheet time: 57mins
Select the advantages of incorporating hydraulic systems
Lightweight
Efficient at transmitting force
Minimal Maintenance required
More Maintenance required
If a one axis autopilot system is fitted to a light aircraft, the most likely axis it would control is
yaw
pitch
roll
What is this a picture of?
piston
cylinder
carburettor
gudgeon
Temporary magnets...
are also known as electromagnets
are materials that are easily magnetised
can be found inside batteries
are used in aircraft magnetic compasses
I am going to study hard and pass CPL Air Tech.
Not a chance
Of Course
You're dreaming ma'am/sir
I don't want to be a pilot
Select the the types of Hydraulic pumps
Vane Type
Geared Type
Piston Type
Turbo Type
Select the advantages of a pneumatic system
Air is limited
Weight and simplicity
Air is unlimited
Increased risk of fire
This type of fire extinguisher is well-suited to deal with Class E and Class B fires as they don't leave a residue that might harm sensitive equipment
Co2 Fire Extinguisher
Methyl Bromide
Dry Powder
Oxygen enhancing type Fire Extinguishers
Select the ways that aircraft protect, stop and remove the formation of ice
Mechanical
Fluid
Thermal
Petroleum
Current that does NOT reverse direction is called ____.
magnetic current
direct current
circuit current
alternating current
Mechanical efficiency involves the relationship between power input and power output. It can be calculated by;
brake power divided by fuel consumption
volume of the charge divided by piston displacement
brake power divided by indicated power
fuel flow divided by brake power
The capacity to do work is
Power
Energy
Torque
Force
What is the outcome when a current passes through a coil of wire?
No magnetic field is formed
The lines of the magnetic field will be in line with the axis of the coil
The lines of the magnetic field will be in line with the wire at all times
The magnetic field formed will block the current from flowing through the coil
Select the different types of undercarriage types
Elastic Bungee Cord
Flat Leaf Spring
Oleo-Pneumatic
Curved Leaf Spring
Oleo-Pneumatic incorporates what two components to provide the dampening?
Fuel + Air
Air + Hydraulic Oil
Engine Oil + Air
Air + Torque Link
How many satellites must be in view to have RAIM capability?
3
4
5
2
How many satellites must be in view in order to remove a faulty satellite? (RAIM)
4
6
5
3
How many satellites are required to obtain a 2D fix?
3
2
1
4
Select all the transponders that can utilize TCAS
Mode C
Mode A
Mode S
Mode B
Select the main functions of oil in an engine
lubrication
cooling
cleaning
anti-knock
Top Dead Centre refers to when
the piston is furthest from the crankshaft
the piston is closest to the crankshaft
the camshaft is furthest from the crankshaft
the camshaft is closest to the crankshaft
What is "valve lead"?
The timing of the exhaust valve so that it opens prior to BDC
The timing of the exhaust valve so it opens before TDC
The timing of the inlet valve so that it opens prior to BDC
The timing of the inlet valve so it opens before TDC
Spark Advance refers to
the spark plugs firing just before TDC
the spark plugs firing just before BDC
the spark plugs firing only on the induction stroke
the spark plugs firing only on the exhaust stroke
Inputs into an Air Data Computer are....
(select all that apply)
pitot pressure
outside air temperature
temperature at the nearest three aerodromes
True Airspeed
A creep mark on an aircraft tyre indicates...
If the inner tube is moving relative to the tyre
if the tyre tread is low and needs replacing
if the wheel rim is damaged
if there is insufficient air in the tyre
What is the correct statement regarding TCAS 1?
TCAS 1 can provide a Resolution Advisory
TCAS 1 cannot provide a Resolution Advisory
A disadvantage of a fixed pitch propeller is...
it has only one altitude at which it reaches maximum efficiency
it has only one temperature at which it reaches maximum efficiency
it has only one air density at which it reaches maximum efficiency
it has only one speed at which it reaches maximum efficiency
When you want to increase the speed of an aircraft fitted with a CSU, the correct method is to;
select a rich mixture, select a coaser pitch, increase the throttle
increase the throttle, select a rich mixture, select a finer pitch
select a rich mixture, select a finer pitch, increase the throttle
select a coarser pitch, increase the throttle, select a rich mixture
Pascal's principle states that if...
pressure is applied at any point to any substance in a closed system, that same pressure is felt throughout the system
pressure is applied at any point to a liquid in a closed system, that same pressure is felt throughout the system
pressure is applied at any point to air in a closed system, that same pressure is felt throughout the system
pressure is applied at any point to a solid in a closed system, that same pressure is felt throughout the system
Which of these are types of fire detection mechanisms found in aircraft?
Select all that apply
bi-metallic switch
capacitance measuring
thermocouple
thermal imaging
The Chemically Correct Mixture (CCM) ratio of Fuel to Air is
1:15
15:1
12:1
1:12
Normal working limits for Fuel to Air ratio are
1:8 to 1:20
1:5 to 1:15
1:9 to 1:18
1:12 to 1: 20
The fuel to air ratio for best economy is found at about
1:12
1:16
1:15
1:9
Select the two qualities of a spinning gyroscope
Precession
Rigidity
Suction
Transference
Resultant
Select all types of systems which can be used to spin a gyroscopic rotor
Venturi
Vacuum
Positive pressure
Magnetic flux
Component Z is the...
horizontal component of the earth's magnetic field which acts on a compass needle
allowance for residual dip made in the manufacture of the compass
vertical component of the earth's magnetic field which acts on a compass needle
allowance for the angle of dip made in the manufacture of the compass
An object that allows electricity to flow through it is a
resistance
insulator
conductor
cotton
The measure of how much a material opposes the flow of current is called
conductor
insulator
electrical field
resistance
Electric current that reverses its direction of flow in a regular pattern is...
Voltage
Direct Current
Alternating Current
Parallel Circuit
Volumetric efficiency can be calculated by
brake power divided by indicated power
brake power divided by fuel consumption
fuel flow divided by brake power
volume of the charge divided by piston displacement
A generator...
contains an electromagnet
produces AC which is rectified to DC by diodes
spins a coil of wire inside a magnet
contains a primary coil, secondary coil and an impulse coupling
Acceleration error exists due to...
pendulous suspension
residual dip
deviation
variation
What is the procedure for a LIVE CUT CHECK
BOTH, L, R, OFF
OFF, L, R, BOTH
BOTH
R, OFF, BOTH, L
Component H is the...
vertical component of the earth's magnetic field which acts on a compass needle
allowance for residual dip made in the manufacture of the compass
allowance for the angle of dip made in the manufacture of the compass
horizontal component of the earth's magnetic field which acts on a compass needle
What would a Centre zero ammeter indicate if the alternator failed?
Zero
Positive
Negative
Fluctuating
Which statement about a bourdon tube is correct ?
It is used to measure Exhaust Gas Temperature
As pressure in the tube increases, it will try to straighten
It is used to measure Manifold Air Pressure
As ambient air pressure increases, it will constrict the tube
What sort of engine is shown here?
inline piston engine
inverted inline
turbine
radial
Cylinder volume with the piston at bottom dead center (BDC) compared to cylinder volume with the piston at top dead center (TDC) is known as...
Compression Ratio
Postion Comparison
Piston Aspect Ratio
Engine Displacement
What's another name for the four-stroke engine cycle?
Tesla Cycle
Brayton Cycle
Otto Cycle
Bi Cycle
When flying an aircraft fitted with a constant speed unit, what controls the manifold pressure?
throttle
mixture
pitch lever
carburettor heat
Ohm's law states that in a circuit if the current is 25 Amperes and resistance is 19 Ohms, then the Voltage will be...
475 volts
2 volts
0.5 volts
2 millivolts
Placing the two north poles of magnets together would result in which electromagnetic force?
repulsion
attraction
polarity
intransigence
A practical alternator consists of...
electrolytes and electrodes
a coil of wire rotating between the poles of a stationary magnet
magic
an electromagnet rotating inside a coil of wire
A normally aspirated engine is one which
is not fitted with a supercharger or turbocharger
has a turbocharger but no supercharger
has a supercharger but no turbocharger
has both a supercharger and a turbocharger
Torque is
what some NZAAL students do too much of
measured in Joules
a force which produces a turning motion
the capacity to do work
Force is equal to
Acceleration x Mass
Power x Time
Distance x Torque
Brake Power x Distance
Select all types of systems which can be used to spin a gyroscopic rotor
Venturi
Vacuum
Positive Pressure
Magnetic Flux
According to the picture, the aircraft is...
in a turn to the right and is slipping
has its right wing down and the aircraft is yawing
yawing and the left wing is down
in a turn to the right and is skidding
In an Artificial Horizon the gyroscope is mounted so that...
it's axis of rotation is horizontal and in line with the aircraft's wings
it cannot rotate beyond 55 degrees in pitch
it's axis of rotation is vertical
it's axis of rotation is horizontal and in line with the longitudinal axis of the aircraft
Zero Fuel Weight is equal to...
APSW + payload
APSW + fuel
Ramp weight + fuel
Gross weight + fuel
Your aircraft has a AUW of 5087kg with a CG limit between STA20 - STA30. Your CG is at STA22 currently. How much freight can you load at STA-28 without exceeding limits?
Answer to the nearest full number (no decimals)
212 kg
110 kg
363 kg
508 kg
Using the C152 pchart and the data below, what is your day landing distance in meters on an air transport runway paved?
W/V ºM : 220 / 14
Runway: 25
Temp: 20ºc
Elevation: 11ft
380
400
420
450
If my initial landing distance is 342m and I see I am landing on a 0.38 uphill runway what will my new landing distance be?
342m
335.5m
348.5m
339m
Landing on runway 18 and the wind is 215/21 what is the total headwind experienced?
17kts
20kts
15kts
10kts
You are working in load control today and realised you need to move a 43kg package. The aircraft has an all up weight of 4500kg, the CG is currently 312 cm aft of the datum. Our CG limits are 313 to 319 cm aft of the datum. You have decided to move the package from the forward hold located at STA 101 and move it rearwards to a hold located at STA 590.
What is the new CG? (answer to 2 decimal places)
(a)
If the weight of a bag is 46kg and it creates a moment of 172.13kgm, what is the arm?
3.742m
3.123m
3.627m
3.751cm
My aircraft has an AUW of 7860kg and my CG is currently sitting at 107cm aft of the datum. The CG limits are 104 to 113 cm aft of the datum. How much weight can I load at STA 222 without exceeding the aft limit?
432kg
422kg
411kg
444kg
The function of a bus bar in an electrical circuit is to...
distribute power to a number of circuits
break the circuit in case of an electrical overload
provide over voltage protection
generate power for a system
If my runway was declared 515m long on the operational data sheet and I am landing on a 135 operation, what distance must I stop within?
440m
438m
430m
428m
One reason that prolonged use of the starter motor should be avoided is...
it can wear out the valve assembly in the engine
the key switch may deteriorate
the battery may go flat
the impulse coupling will supply too much voltage to the spark plugs
The AUW of your aircraft is 4500lb and the current CofG is computed to be 2 inches forward of the forward CofG limit. The permissible range of the CofG is from 80 inches aft to 90 inches aft of the datum and the rear luggage locker is positioned 150 inches aft the datum. What is the minimum ballast to be added to the rear luggage locker to bring the CofG within limits? (DO NOT INCLUDE UNITS)
(a)
What is a possible consequence if a hand operated fuel priming pump is not locked in the closed position after the engine has started?
An over rich mixture
Spark plug fouling
Detonation
The engine may stop
What frequency does an ELT transmit on
119.1
All nearby frequencies
121.5 only
121.5 & 406 MHz
When does an ELT activate?
When set off by the PIC
When subjected to 5 or 6 G's
On all emergencies
Never
Which of these are types of oxygen systems?
Constant Flow
Altitude Compensating
Altitude Adjusting
Altitude Correcting
How is payload calculated?
BEW + ZFW
BOW + ZFW
APSW - BOW
Ramp Weight - BOW
Given the following information, what is the ZFW:
MCTOW: 30,000 kg
MLW: 26,000 kg
Ramp Weight: 32,000 kg
BOW: 20,000 kg
Payload: 2,000 kg
NO UNITS IN ANSWER
(a)
If I land on a runway that has an upslope towards the threshold my landing distance will be:
Increased
Decreased
Stay the same
Aspeq??
Which of the following is a de-icing aid?
Pneumatic boots
Windscreen heater
Bonding strips
Heated propellor
What is tyre creep
A tube tyre rotating around the stationary wheel rim
A tubeless tyre rotating around the stationary wheel rim
A wierd dude
The wheel advancing over the side of the rim
Most light a/c have independent hydraulic brake systems
False
True
Anti-skid systems incorporate an a/c generator in the hub of each wheel
False
True
What is 100L of AVGAS in kg?
(NO UNITS)
(a)
The most common type of brake system is:
Drum-Type
Boosted Brakes
Hydraulic Disc Brake
Pneumatic Brake-Shoe
An accumulator is used in what type of hydraulic system
Open Centre
Pressurised
Manual Pump
Pneumatic
In order, what is the colour of these hydraulic fluids:
Synthetic, Vegetable, Mineral
Green, Red, Blue
Red, Purple, Blue
Blue, Red, Purple
Purple, Blue, Red
AUW is 4,170 kg and the present CG is 4,015 mm. CG limits are 4,020 to 4,080 mm aft of datum. How much weight must be off-loaded from STA 1,300 to bring the CG to 20mm aft of the forward datum? (NO UNITS, ANSWER TO 2 DECIMAL PLACES)
(a)
What are the 2 most common types of autopilot systems?
Four-axis
Single-axis
Trim
Two-axis
What system would provide the pilot with a Resolution Advisory?
GPWS
TCAS II
TCAS 1
EGPWS
What is the Global Datum used in GPS in NZ?
WSG 84
WPS 84
WGS 84
GPS 84
If my CSU is underspeed, what position will the flyweights be in?
No change
Tilted outward
Level
Tilted inward
In which direction does Lift act on a windmilling propellor
In the direction of flight
Straight up
Opposite the direction of flight
90 degrees to the Plane of Rotation
Does CTM act to fine or coarsen the blade in windmilling flight?
Fine
Coarsen
What is the condition of the propellor when it is producing no net propellor torque
5 degrees Coarse
Feathered
Reverse Thrust
Fine
If I lower my nose in a CSU equipped a/c without changing any setting, what will happen to my propellor
There will be no change
It will fine
It will fall off
It will coarsen
ATM is stronger than CTM
True
False
What is the main difference between turboprop and piston engines?
They operate more efficiently
They produce power continually
They are bigger
They look cooler
Thermal efficiency of a piston engine can be as low as:
50%
20%
17%
30%
The Fuel:Air ratio for max power is:
1:18
1:15
1:12
1:16
AMC is a type of carburettor
Talse
True
False
Frue
