Jet Engine Theory And Design.” And “Tools And Hardware.”Assignment 2

Front 1

What type fuel nozzle is most widely
used in current Navy gas turbine
aircraft engines?

Back 1

Duplex

Front 2

Can-type combustion chambers require
a flow divider and duplex fuel
nozzle to divide the fuel flow
between the different combustion
chambers.

Back 2

True

Front 3

In the can-type combustion chamber,
where are the spark igniter plugs
located?

Back 3

In the two upper chambers

Front 4

Every turbine engine must have a
drain valve to eliminate raw fuel
from the combustion chamber after a
false start or an engine shutdown.

Back 4

True

Front 5

What is the purpose of the holes in
the dome of the can–type combustion
chamber liner?

Back 5

To help atomize fuel

Front 6

What is the main function of the
inlet section of the annular
combustion chamber?

Back 6

To change velocity energy into
pressure

Front 7

The can-annular combustion chamber
was specifically designed for use
with what type of compressor?

Back 7

Axial-flow, split-spool

Front 8

What is one of the advantages of the
can-annular combustion chamber
design?

Back 8

Reduces pollution emissions by
obtaining complete combustion on
light–off

Front 9

Combustion liner flame tubes provide
which of the following functions?

Back 9

Flame propagation (spreading)

Front 10

The preswirl vanes in the canannular
combustion chambers help to

Back 10

mix the air and fuel

Front 11

What section of a jet engine
converts velocity energy into
mechanical energy?

Back 11

Turbine

Front 12

What is the sole function of the
turbine in a turbojet engine?

Back 12

To drive the compressor and
accessories

Front 13

What is the majority of the energy
created in the combustion section
used for?

Back 13

Driving the compressor

Front 14

What feature is common to all
turbojet turbine nozzles?

Back 14

Thermal expansion

Front 15

What kind of turbine rotates from
the weight and velocity of air
striking its blades?

Back 15

Impulse only

Front 16

What difference, if any, is there
between a turbine disc and a turbine
wheel?

Back 16

None

Front 17

Turbine discs are commonly attached
to the turbine shaft by which of the
following methods?

Back 17

Peening

Front 18

When the shrouded turbine is
compared with an open turbine, the
shrouded turbine offers all EXCEPT
which of the following advantages?

Back 18

It requires fewer blades

Front 19

A turbine stage, like a compressor
stage, consists of a row of
stationary vanes and a row of
rotating blades.

Back 19

True

Front 20

The terms single-rotor turbine and
single-stage turbine have the same
meaning.

Back 20

False

Front 21

What type of turbine is required for
a split–spool compressor?

Back 21

Dual-rotor

Front 22

What is the function of the exhaust
section?

Back 22

To direct hot gas out of the
aircraft while increasing
velocity and preventing
turbulence

Front 23

What affect does the exhaust cone
have on the pressure and velocity of
the gases discharged from the
turbine?

Back 23

Pressure is increased and
velocity is decreased

Front 24

Which of the following is an
important function of the radial
struts in the exhaust cone assembly?

Back 24

To straighten the exhaust gases

Front 25

What is the purpose of the small
hole in the end of the inner cone of
some exhaust systems?

Back 25

To allow cooling air to enter
the cone

Front 26

Which of the following is a
component of a basic jet engine?

Back 26

Exhaust cone assembly

Front 27

The velocity of the air is increased
in the exhaust section by what jet
engine component?

Back 27

Jet nozzle

Front 28

Which of the following types of jet
nozzles is used for subsonic
velocities?

Back 28

Variable-area, converging

Front 29

The size of the exhaust section exit
area directly affects the operating
temperatures of the engine and the
engine performance.

Back 29

False

Front 30

The accessory section provides space
for mounting which, if any, of the
following types of accessories?

Back 30

Engine accessories only

Front 31

What is the primary function of the
afterburner?

Back 31

To increase thrust for specific
conditions

Front 32

Which of the following NAVEDTRA
manuals is recommended supplemental
reading for additional information
about the selection, care, and use
of tools?

Back 32

10085

Front 33

Which of the following is the main
purpose of the Tool Control Program?

Back 33

To reduce FOD–related mishaps

Front 34

What minimum marking(s) should be
etched on each tool?

Back 34

Tool container number, work
center, and organization code

Front 35

Which of the following publications
should you consult for policies and
procedures for control of hand
tools?

Back 35

4790.2

Front 36

maintenance task has been
completed and a tool is missing. If
that tool cannot be found, what
person should sign the VIDS/MAF to
indicate the missing tool is NOT in
the aircraft?

Back 36

The person who conducted the
investigation

Front 37

It is important for the face of a
striking tool to be free of oil and
grease to prevent the

Back 37

tool from glancing off the
object being hit

Front 38

Which of the following is the
correct procedure to follow when you
use hammers?

Back 38

Grip the hammer near the end
with your fingers underneath and
your thumb along the side of the
handle

Front 39

What type of hammer has a soft face?

Back 39

Mallet

Front 40

What advantage does a 6–point socket
have over a 12-point socket?

Back 40

It is not subject to as much
wear when used on stainless
steel nuts

Front 41

Sockets are classified according to
their

Back 41

drive size and the size of the
opening at the wrench end

Front 42

The bolt size of sockets is
graduated in increments of

Back 42

1/16 inch

Front 43

Which of the following socket wrench
handles has a reversible feature?

Back 43

Ratchet

Front 44

What do you gain by using the box
end of a combination wrench?

Back 44

Safety under stress

Front 45

The box-end wrench is usually
constructed with

Back 45

12 points

Front 46

Why does the box–end wrench have a
15–degree offset in its handle?

Back 46

To allow clearance over nearby
parts

Front 47

What is the disadvantage of the box
end of a combination wrench?

Back 47

Slow work

Front 48

What advantage is there to using an
adjustable wrench instead of a box
wrench to tighten or loosen nuts?

Back 48

An adjustable wrench can be made
to fit snugly on odd-sized nuts

Front 49

When turning a nut with an
adjustable wrench, how do you
prevent the jaw from springing open?

Back 49

Pull the handle toward the
adjustable jaw

Front 50

What are the two basic types of
screwdriver blades?

Back 50

Common and crosspoint