STDP Final

Question 1

what are the two types of micrometers

Answer 1

outside and inside micrometers

Question 2

what are the two kinds of calipers

Answer 2

vernier and dial calipers

Question 3

5 classes of fit

Answer 3

loose fit
free fit
medium fit
close fit
tight fit

Question 4

different standards for aircraft harware

Answer 4

AN - Army, Navy (pre 1950)

MS - Military standard (Post 1950)

Question 5

what are the different forces that can be exerted on a bolt

Answer 5

tension
compression
torsion
sheer
bending

Question 6

3 types of bolt

Answer 6

hex
clevis
eye

Question 7

what are nuts and bolts most commonly made from

Answer 7

steel
aluminium
brass

Question 8

what is lockwire most commonly made from

Answer 8

soft brass
soft copper
steel

Question 9

why would copper or bronze wire be used in place of steel

Answer 9

as witness wire

Question 10

how are cable sizes determined

Answer 10

number of strands by number of wires (7x19 = 7 strands x 19 wires per strand)

Question 11

what is a turnbuckle used for

Answer 11

connecting two cables together and adjust the

Question 12

what is a Nicopress

Answer 12

a copper sleeve that is crimped around a wire end to form a loop. used to attach wires

Question 13

what is a fairlead

Answer 13

a device used to prevent contact between wires and rough surfaces of the aircraft structure

Question 14

what are cable seals used for

Answer 14

to seal different compartments of the aircraft for pressurization while still allowing cables to move freely between them

Question 15

what is the noise limit for humans

Answer 15

115db for 15min.

Question 16

how loud is a jet engine

Answer 16

130db

Question 17

what should a signaler be aware of while marshaling an aircraft

Answer 17

• maintain eye contact with cockpit
• use reflective gloves or batons
• wear high-vis vest

Question 18

what is the signal to start engines

Answer 18

point at desired engine with one hand while making circular motion above head with the other

Question 19

what is the signal to engage brakes

Answer 19

hold up an open hand, palm facing cockpit and make a fist - hold position until you receive thumbs up from pilot

Question 20

what is the signal for controlled stop

Answer 20

cross arms above head - hold until you receive conformation from pilot

Question 21

what is the signal for a turn

Answer 21

point in desired direction from pilots POV (your left = pilot right) and wave arm towards yourself

Question 22

when mooring an aircraft, what precautions must be taken?

Answer 22

• ensure nose is pointed in the direction of wind
• flight control locks have been installed
• aircraft wings and tail are tied down

Question 23

what are spoiler boards

Answer 23

attached to the top of a wing to spoil lift created during wind storms

Question 24

what precautions must be taken when doing aircraft ground runs

Answer 24

• aircraft is in a suitable location
• all personel are clear from both the intake and exhausts of the engines
• all ramp equipment has been moved to a safe location
• brakes must be on

Question 25

what are the Air Traffic Control tower light signals

Answer 25

``` solid green - clear for takeoff flashing green - clear to taxi solid red - stop flashing red - taxi away from runway flashing white - return to start point alternating red and green - extreme caution ```

Question 26

safety precautions for filling oxygen bottles

Answer 26

keep away from any potential spark or flame keep fire extinguishers on hand fill slowly to avoid rapid build up of heat causing false readings

Question 27

what is the maximum pressure a standard size oxygen bottle can be filled to

Answer 27

3000 psi

Question 28

what is FOD

Answer 28

Foreign Object Damage

Question 29

what is classified as FOD

Answer 29

any loose items on the runway or taxiways that do not belong there