Exam 4

Question 1

3 types of avgas and color

Which is most common?

Answer 1

AVGAS 100/130 - Green
AVGAS 100LL - Blue
AVGAS 82UL - Purple

Avgas 100LL

Question 2

Concerns when operating with MOGAS

Answer 2

Cannot contain alcohol
More prone to vapour lock
Lower octane than Avgas - Detonation may occur
Mogas changes based on season and geography
May leave gum residue

Question 3

Why do we add additives like prist to jet fuel?

Answer 3

Anti incing properties

Microbiocidal effects

Question 4

Five basic requirements of fuel system?

Answer 4

Stores fuel
System delivers fuel to all engines
Delivers correct amount of fuel at correct pressure
Deliver clean fuel
Quantity indication

Question 5

Advantages / disadvantages of Rigid fuel tank

Answer 5

Strong, little spills

Requires large opening / area

Question 6

Advantages / disadvantages of fuel cells (bladders)

Answer 6

Collapsible, fits in small places

Must be protected from sharp edges, structure supports weight of cell

Question 7

Advantages / disadvantages of integral tanks

Answer 7

USes exisitng space, maximize fuel volume for a given space, less weight to add
HArd to seal and maintain, cannot be replaced

Question 8

At a minimum, what is labelled on a fuel tank?

Answer 8

Quantity and type of fuel

Question 9

A scupper is used to

Answer 9

dump overfilled fuel overboard in case of overfill

Question 10

Fuel vents are for what?

Answer 10

Allow air to replace the volume of fuel that leaves tank (fuel flow)

Question 11

2 basic fuel systems

Answer 11

Gravity fed, pressure fed (pump)

Question 12

What is used to feed the left tank to the rtight engine?

Answer 12

crossbleed valves

Question 13

Fuel pumps are driven…

Answer 13

electrically or hydraulically

Question 14

What are checked everyday to remove contaminants from fuel tanks?

Answer 14

Sump drains

Question 15

Fuel filters are found in 3 different places

Answer 15

Tanks, Airframe, Engine

Question 16

Purpose of fuel filter screens?

Answer 16

To remove sediment or water

Question 17

All fuel systems must have what at the firewall?

Answer 17

Shutoff valve

Question 18

Whats the lowest point in a tank?

Answer 18

The sump

Question 19

Fuel valves are used to

Answer 19

Accomodate fuel flow demands

Control fuel flow direction

Question 20

4 types of fuel valves

Answer 20

Poppet
Cone
Disc
Slide or gate

Question 21

What precautions must be dtaken when refueling aircraft?

Answer 21

No smoking
Ground nozzle before opening fuel cap
Bond truck and aircraft
Ground aircraft
Have fire protection ready
Ground truck
Refuel outside for fumes
Use filters when fuelling from drums
Avoid skin contact
Use proper PPE

Question 22

How is engine oil rated?

Answer 22

Viscosity and type

Octane number

Question 23

What PPE should be worn when servicing waste systems?

Answer 23

GLoves, mask, aprons, coveralls, goggles

Question 24

What precautions are taken when servicing engine oil?

Answer 24

Fill per manufacturers instructions
USe same oil type to replensish
Do not overfill engines with oil
Engine oil will show low when first run

Question 25

What should be done if grease won’t go into a Zirk fitting?

Answer 25

The fitting should be removed and inspected for blockage

Question 26

Incorrect use of aircraft cleaners could cause

Answer 26

Hydrogen embrittlement

Question 27

Flexible cables include

Answer 27

7x7 6x19 7x19

Question 28

Non flexible cables include

Answer 28

1x7 | 1x19

Question 29

cables are made of either

Answer 29

Galvanized or stainless steel

Question 30

Control systems can use what 3 things to transmit force

Answer 30

Pulleys Bellcranks Fairleads

Question 31

Cable connections: 3 types

Answer 31

Swage Nicopress leeve Bridle clamps

Question 32

5 main criteria to consider when rigging flight controls?

Answer 32

``` Cable tension Control surface deflection Pilot control deflection Cable interference Rigging pins ```

Question 33

A turnbuckle has both a

Answer 33

Right and left hand thread type

Question 34

What function do pulleys, fairleads, bellcranks and control horns all have in common?

Answer 34

They are all used to support or control the change of direction of cables

Question 35

4 things after altering control systems?

Answer 35

Check for broken cables Pulleys arent cracked or seized Cable tension

Question 36

Purpose of artificial feedback?

Answer 36

Pilot can get a sense of input to the hydraulic controls

Question 37

Why are symmetry checks performed?

Answer 37

Ensures plane is straight After hard landing After major structural repair Fresh out the factory

Question 38

Describe flight control characteristics as large aircraft speeds up

Answer 38

As aircraft speeds up, control surface input decreases

Question 39

Lift dump spoilers purpose

Answer 39

Kills lift generated by wing, and apply more weight on wheels when landing

Question 40

2 devices for aerodynamic stall warnings?

Answer 40

Stick shaker, Stick pusher

Question 41

4 ways to reduce housekeeping

Answer 41

Clean as you go Good housekeeping Tool shadowing

Question 42

What is most inportant PPE?

Answer 42

Ear protection

Question 43

Correct way to approach helicopter?

Answer 43

From the front due to spinning rotors you cant see

Question 44

List 3 things when tying down aircraft

Answer 44

Lock controls Wind direction Little slack in the tie downs

Question 45

Type of rope for tie downs and type of knot

Answer 45

Nylon or Dacron | Bowline

Question 46

List 4 safety precautions when doing runs

Answer 46

Propellers can become invisible Always approach from front with eye contact 25ft away from front 200 ft away from back

Question 47

First thing to do when taxiing

Answer 47

Brake check

Question 48

Minimum safe distance from running turbine engines?

Answer 48

25 - 30ft

Question 49

How many people required for towing?

Answer 49

5 at least

Question 50

List 6 control tower lights

Answer 50

``` Green - Good to go Red - stop Flashing green - Flashing red - Flashing white - return to starting point Alternate red / green - extreme caution ```