Slip test Questions

Question 1

Answer 1

(a) convert engine power into useful thrust

Question 2

Answer 2

(b) Centrifugal

Question 3

Answer 3

Thrust

Question 4

Answer 4

Effective pitch

Question 5

Answer 5

2 - 4 degrees

Question 6

Answer 6

For protection

Question 7

Answer 7

CTM

(Centrifugal Twisting Moment)

Question 8

Answer 8

Greater than the tip

Question 9

Answer 9

To increase flow of cooling air into the engine nacelle

Question 10

Answer 10

Removed on the ground

Question 11

Answer 11

Initiate auto-feather

Question 12

Answer 12

3rd law

Question 13

Answer 13

Reduce

Question 14

Answer 14

To reduce ground roll on landing

Question 15

Answer 15

Plane of rotation

Question 16

Answer 16

Engine starting to reduce propeller torque loading on starter motor

Question 17

Answer 17

Epicycle (planetary) gear train

Question 18

Answer 18

It has a low strength to weight ratio

Question 19

Answer 19

Individual blade angles

Question 20

Answer 20

In one revolution without slip

Question 21

Answer 21

Rotation

Question 22

Answer 22

Turns the blade angle to high pitch

Question 23

Answer 23

Decreases from root to tip

Question 24

Answer 24

Torque reaction at the reduction gear

Question 25

Answer 25

Increasing blade chord

Question 26

Answer 26

To even out thrust distribution across the propeller

Question 27

Answer 27

Centre of the hub

Question 28

Answer 28

Decreased pressure immediately in front of the propeller blades

Question 29

Answer 29

To measure the actual torque created by the engine

Question 30

Answer 30

Thrust and torque

Question 31

Answer 31

the distance it would move forward in one revolution at the blade angle

Question 32

Answer 32

at its optimum angle on take off

Question 33

Answer 33

When the blade angle has been turned edge-on to the airflow

Question 34

Answer 34

a tractor propeller

Question 35

Answer 35

The pitch becomes coarser

Question 36

Answer 36

A line joining the leading and trailing edges

Question 37

Answer 37

The angle between the chord line and the plane of rotation

Question 38

Answer 38

inner third

Question 39

Answer 39

Fine pitch

Question 40

Answer 40

At the hub

Question 41

Answer 41

A streamline covering over the propeller hub

Question 42

Answer 42

The propellers pitch angle is altered to maintain the rotational speed constant