Exam Review: Components

Question 1

What are RIGID fuel lines made out of?

Answer 1

Aluminum Alloy

Stainless Steel

Question 2

What are FLEXIBLE fuel lines made of?

Answer 2

Synthetic Rubber

Teflon

Question 3

Why do we need at least one bend in RIGID tubing?

Answer 3

Thermal expansion

Question 4

What are the 3 types of valves we will be working with?

Answer 4

Manual
Motor Operated
Solenoid Operated

Question 5

What are the types of MANUAL fuel valves?

Answer 5

CONE

POPPET

Question 6

This type of valve is used on small aircrafts as a selector and shut off valve, made from BRASS, has a DETENTE gate and SPRING LOADED PIN

Answer 6

Cone type valve

Question 7

Describe the Poppet valve

Answer 7

Handle attached to CAMSHAFT, lifts POPPET valve, lets fuel flow

Question 8

These types of Fuel Valves are used on LARGE aircraft because they can be remotely operated

Answer 8

MOTOR OPERATED

Question 9

What are the types of MOTOR OPERATED fuel valves?

Answer 9

Ball

Gate

Question 10

How does a SOLENOID valve work?

Answer 10

Current goes through solenoid, flow, deenergized, spring pin clsoed

Question 11

What are the 2 types of pumps we will be dealing with?

Answer 11

EDP

AUX PUMP

Question 12

What are the types of AUX pumps we will be dealing with?

Answer 12

Centrifugal
Ejector
Electric Pulsating

Question 13

How does a CENTRIFUGAL pump work?

Answer 13

Fuel into center impeller and expelled at outer edge

Question 14

If the CENTRIFUGAL pump is installed IN the tank what happens?

Answer 14

Positive pressure throughout fuel system

Separates vapours from fuel prior to entering pump inlet

Question 15

How does the EJECTOR PUMP work?

Answer 15

Bernoulli’s principle

Question 16

Pressurized fuel flow comes upstream from the ejector pump is known as what?

Answer 16

MOTIVE FLOW

Question 17

What are the main functions of the EJECTOR pump?

Answer 17

Feed

Scavenge

Question 18

What is the one drawback of an ejector pump?

Answer 18

Can only operate once the engine is running

Question 19

This type of pump uses a solenoid, springs and piston to pump fuel

Answer 19

ELECTRIC PULSATING PUMP

Question 20

How is an ELECTRIC PULSATING PUMP usually installed?

Answer 20

Parallel to EDP to supply backup

Question 21

What is the purpose of the EDP?

Answer 21

Deliver continuous fuel at proper pressure at all times

Question 22

What are the types of EDPs?

Answer 22

Vane

Diaphragm

Question 23

This type of pump is mostly used for piston engines, provides constant displacement and requires a bypass

Answer 23

Vane type

Question 24

This type of pump is used in many 4-6 cylinder CARBURATED piston engines

Answer 24

DIAPHRAGM

Question 25

Where do we use a FUEL HEATER?

Answer 25

Turbine engines

Question 26

What are the 3 types of FUEL QUANTITY indicators?

Answer 26

Direct
Electric
Electronic

Question 27

What are the types of Direct reading?

Answer 27

Mechanical

Sight glass

Question 28

This type of indication is used on SMALL to MEDIUM aircraft, consists of a float and transmitter

Answer 28

RESISTANCE (electrical)

Question 29

On what type of AIRCRAFT do we use the CAPACITANCE (electronic) type?

Answer 29

Large High Performance

Question 30

What is the purpose of a MAGNETIC DIPSTICK and DRIP GAUGE

Answer 30

Determine fuel on board without using the electric/ekectronic

Question 31

What does the FUEL PRESSURE indicator show?

Answer 31

Entering the metering unit

Question 32

What does the FUEL FLOW indicator show?

Answer 32

Amount of fuel being burned

Question 33

On PISTON engines where is the fuel flow indication taken?

Answer 33

AT MANIFOLD (fuel pressure)

Question 34

Where do TURBINE engines take their FUEL FLOW indication?

Answer 34

OUTLET OF FCU