ATA 53

Question 1

What structure is B777 fuselage structure? (B1)

a. Semi-monocoque

b. Monocoque

c. Combination between monocoque and semi-monocoque

Answer 1

A

Question 2

How many pressure bulkheads are there in the fuselage? (A, B1, B2)
a. 3
b. 4
c. 2

Answer 2

C

Question 3

When you open the radome, it is (A, B1, B2)
a. Detached from the fuselage
b. Held by a hinge
c. Opened upward

Answer 3

B

Question 4

Wing-to-body fairing is made of (A, B1, B2)
a. Steel
b. Alluminum
c. Composite

Answer 4

C

Question 5

The sound dampening angles are attached to (B1)
a. Fuselage skin
b. Frames and stringers
c. Wing-to-body fairing

Answer 5

B

Question 6

The scuff plates are attached to (B1)

a. Passenger entry door thresholds

b. Passenger entry door cut-out

c. Passenger entry door hinge

Answer 6

A

Question 7

When you open the nose radome, wind velocity must be (A, B1, B2)
a. Less than 65kts
b. Less than 45kts
c. Less than 80kts

Answer 7

B

Question 8

Lightning diverter strips in the nose radome deterioration can cause (B1, B2)

a. Weather radar incorrect operation

b. Lightning to strike the radome

c. Radio noise interference

Answer 8

A

Question 9

The fuselage sections 41 through 48 are (B1)

a. Bolted together

b. Attached to each other by threads

c. Riveted to each other

Answer 9

C*

Question 10

Where can you find the keel beam? (B1)

a. Under the forward cargo compartment

b. Between the two mainlanding gear wheel wells

c. Under the aft cargo compartment

Answer 10

B