In addition to the weight and balance loading form, the manufacturer may provide a device to be used to calculate weight and balance. Instructions for its use shall be provided.

A. Make sure that the bolts are tight.

B. Make sure that the screws are securely installed.

C. Make sure that the bolts are loose.

A. To give indications and test to the wing/body overheat system, 115v ac power must be connected. When installing an element, do not bend the element unless the bend radius is less than one inch. If the bend radius is less than one inch, damage to the eleme

B. For the indications and test of the wing/body overheat system, 115v ac power must be ON. When you install an element, do not bend the element until the bend radius is less than one inch. If the bend radius is less than one inch, damage to the element can

C. 115v dc power must be supplied for the indications and test of the wing/body overheat system. When you install an element, do not bend the element radius less than one inch. If you bend the radius less than one inch, damage to the element can occur.

A. The operation of new generation aircraft has adopted the operation method of damage tolerance.

B. The damage tolerance design method is applicable to the new type aircraft.

C. The design concept of damage tolerance was successfully applied to the design of new generation aircraft.

A. Stringers and the upper wing skin are called vent channels. The vent channels go through drain float valves in the center tank.

B. Stringers and the upper wing skin are compose of the vent channels. The vent channels got exhaust float valves from the center tank.

C. Stringers and the upper wing skin make the vent channels. The vent channels have drain float valves in the center tank.

A. Make an estimate of the necessary quantity.

B. Evaluate on the quantity available.

C. Approximate the scale of the quality.

A. The exhaust from the Auxiliary Power Unit is dangerous.

B. The exhaust from the nozzle unit is dangerous.

C. The exhaust from the Auxiliary Power Unit inlet is dangerous.

A. Remove the middle bellcrank unit.

B. Remove the moderate dualcrank unit.

C. Remove the middle doublecrank unit.

A. Turn the handle of the door until the lower gate is lifted.

B. For lowering the upper door, door handle should be turned.

C. The lever of door should be turned until the lower door opens.

A. 在紧急情况下要无条件的服从乘务人员。

B. 在紧急情况下可以向乘务人员提出问题。

C. 在紧急情况不要向乘务人员提出问题。

A. If there are metal fragments in the liquid sample, replace the pump.

B. If there are only small metal particles in the solid sample, replace the pump.

C. If there are metal particles in the sample solids, replace the pump.