1st half Exercise questions

Question 1

When a circuit is broken so that current is no longer able to pass, it is called a/an ___ circuit.

Answer 1

Open

Question 2

When the electrons flow in a complete uninterrupted path, it is called a/an ___ circuit

Answer 2

Closed

Question 3

What is the function of a bus in an electrical system?

Answer 3

A centralized source of power for distribution

Question 4

What are the types of electricity?

Answer 4

AC and DC

Question 5

___ power is a stable, regulated power source, which is necessary to operate electric motors, valves, computers, and flight and engine instruments reliably.

Answer 5

AC

Question 6

___ Transforms AC voltage and rectifies it to DC voltage

Answer 6

Transformer/Rectifer (T/R)

Question 7

How many battery types are there?

Answer 7

2: Lead-Acid batteries & Nickel-Cadmium (NiCad)

Question 8

What type of circuit breakers are used on our aircraft?

Answer 8

Push-Pull type

Question 9

What sources provide AC current?

Answer 9

Electrical Generators Such as Ram Air Turbines (RAT)
Air Driven Generators (ADG)
External Power Carts

Question 10

A complete path through which electricity can flow

Answer 10

Electrical Circuit

Question 11

An unbroken circuit where electrons flow in a complete uninterrupted path

Answer 11

Closed Circuit

Question 12

A circuit whose path has been broken, making electrons unable to complete the path

Answer 12

Open Circuit

Question 13

When the electrons follow a shorter path than intended by design

Answer 13

Short Circuit

Question 14

a flow of electrons moving through all of the elements of a circuit

Answer 14

Continuity

Question 15

When the electrical system is turned on, the bus is charged and becomes a centralized source of power distribution.

Answer 15

Bus

Question 16

___ is a form of electrical current that periodically reverses direction, created by electrical generators

Answer 16

Alternating Current (AC)

Question 17

a form of electrical current that flows only in one direction.

Answer 17

Direct Current (DC)

Question 18

Most large aircraft uses __ for primary electrical power

Answer 18

AC

Question 19

is supplied by electrical generators, the largest of which run off of the aircraft engines and APU.

Answer 19

AC power

Question 20

When on the ground, ___ can supply AC power to the Aircraft

Answer 20

External ground power carts

Question 21

DC power is supplied from two sources:

Answer 21

Transformer-Rectifiers (T/R) and the aircraft batteries

Question 22

the primary source of DC power on most large aircraft

Answer 22

Transformer/Rectifiers (T/R)

Question 23

___ are used as an emergency backup or to operate some DC operable equipment.

Answer 23

Aircraft Batteries

Question 24

Use a reaction between a conductive metal and liquid to produce current.

Answer 24

Lead Acid batteries

Question 25

These batteries offer higher currents and lighter weight when compared to similarly-sized lead-acid batteries.

Answer 25

Nickel-Cadmium (NiCad) batteries

Question 26

It receives power from the T/R and then distributes the 28-volt DC power out to systems or components

Answer 26

Main DC bus

Question 27

The emergency DC bus distributes 28-volts to the most essential systems only.

Answer 27

Emergency DC bus

Question 28

The type of circuit breakers used on large aircraft are the ____ type

Answer 28

Push-Pull

Question 29

if the circuit overloads _____ stopping the current

Answer 29

The button pops out

Question 30

The ___ register system pressure

Answer 30

Pressure gauges

Question 31

An ___ stores fluid under pressure to absorb pressure surges

Answer 31

Accumulator

Question 32

___ provide Linear movement (push/pull)

Answer 32

Actuators

Question 33

___ control the direction of fluid flow into an actuator or motor

Answer 33

Selector valves

Question 34

the ___ is also the servicing point to refill low system

Answer 34

Reservoir

Question 35

The ___ is a large container that holds all the hydraulic fluid not contained in the lines.

Answer 35

Reservoir

Question 36

There are two types of hydraulic fluid in common use:

Answer 36

Mineral-based | Synthetic-based

Question 37

___ Operated manually.

Answer 37

Hand pump

Question 38

___ are driven by several mechanical power sources such as Aircraft engines or APU, Air turbine motors, electric motors, ram air turbines

Answer 38

Power Pump

Question 39

A hydraulic system must have

Answer 39

a source of power means to transmit the power a device to use the power

Question 40

the most common pieces of hydraulic equipment you will operate are

Answer 40

the cargo door and ramp, | and the cargo winch

Question 41

NATO fuel begins with

Answer 41

F

Question 42

Commercial Jet fuel begins with

Answer 42

JET

Question 43

Military jet fuel begins with

Answer 43

JP

Question 44

The most recommended fuel for air force turbine aircraft is

Answer 44

JP-8

Question 45

___ the temperature at which fuel will ignite

Answer 45

High flashpoint

Question 46

___ is the pressure of the air above the fuel required to keep the vapors in the fuel.

Answer 46

Low Vapor Pressure

Question 47

___ is desirable because when airplanes fly at high altitudes and in cold weather

Answer 47

Low freeze point

Question 48

___ pumps fuel out of it into the manifold so that it can be transferred to another tank

Answer 48

Transfer Pump

Question 49

a___ gauge displays the sum of all fuel tanks on the aircraft

Answer 49

Totalizer

Question 50

the ___ provides an uninterrupted supply of fuel

Answer 50

Boost Pump

Question 51

___ allows fuel to be dumped in flight.

Answer 51

Jettison or dump valve

Question 52

automatically connected to "T-Handles" that will work even in a total loss of electrical power

Answer 52

Firewall shutoff valve

Question 53

___ allows fuel to enter the manifold from an outside source

Answer 53

Refuel Valve

Question 54

When open, they permit fuel to flow between tanks.

Answer 54

Crossfeed Valves

Question 55

limit fuel flow to one direction

Answer 55

Check Valves

Question 56

is the distribution network for fuel throughout the aircraft.

Answer 56

The fuel manifold

Question 57

Self-contained fuel system, consisting of a sealed metal shell that incorporates the tank

Answer 57

External tanks

Question 58

is a nylon rubber bag that fits within a cavity in the wing or fuelage

Answer 58

Bladder Tanks

Question 59

The ___ is combined, or integrated, with the aircraft structure

Answer 59

Integral

Question 60

Three types of fuel tanks

Answer 60

Bladder Integral External

Question 61

___ provides electrical power, bleed air, and in some designs, hydraulic power.

Answer 61

APU

Question 62

Small self-contained jet engines that are used to power various systems while on the ground

Answer 62

APU

Question 63

The gas turbine spins a reduction gearbox at the front of the engine. the propeller is attached to the output of the reduction gearbox

Answer 63

Turboprop

Question 64

___ uses the gas turbine to spin a large fan at the front of the engines.

Answer 64

Turbofan

Question 65

The purpose of ___ section is to direct the flow of hot gasses leaving the turbine

Answer 65

Exhaust

Question 66

The ___ is where the fuel is mixed with compressor discharged air and then ignited

Answer 66

Combustion chamber

Question 67

A diffuser allows the airflow to the

Answer 67

Air conditioning Pressurization de-icing

Question 68

___ is designed to channel incoming air into the compressor

Answer 68

Air inlet

Question 69

a major section of a jet engine

Answer 69

``` Air inlet compressor diffuser combustion chamber turbine exhaust and accessory sections ```

Question 70

Temp of the atmosphere means

Answer 70

Low temp = more power

Question 71

Pressure of atmosphere

Answer 71

Low pressure = less power

Question 72

Bleed air is not-combusted air that is pulled from an engine to run pneumatic systems

Answer 72

Bleed air extracted from the engines