緑色の問題は、Airplane以外やPrivate以外の問題です。(このページには飛行機の問題はありません。）
401. - PLT057
(Refer to figure 58.) What is the maximum altitude for the balloon if the gross weight is 1,100
pounds and standard temperature exists at all altitudes?
A) 1,000 feet.
B) 4,000 feet.
C) 5,500 feet.
402. - PLT057
(Refer to figure 58.) What is the maximum altitude for the balloon if the gross weight is 1,000
pounds and standard temperature exists at all altitudes?
A) 4,000 feet.
B) 5,500 feet.
C) 11,000 feet.
403. - PLT057
(Refer to figure 57.) The gross weight of the balloon is 1,350 pounds and the outside air
temperature (OAT) is +51°F. The maximum height would be
A) 5,000 feet.
B) 8,000 feet.
C) 10,000 feet.
404. - PLT177
All fuel tanks should be fired during preflight to determine
A) the burner pressure and condition of the valves.
B) that the pilot light functions properly on each tank.
C) if there are any leaks in the tank.
405. - PLT250
Why should special precautions be taken when filling the propane bottles?
A) Propane is transferred from the storage tanks to the propane bottles under high pressure.
B) During transfer, propane reaches a high temperature and can cause severe burns.
C) Propane vapor is super-cold and may cause severe freeze burns.
406. - PLT254
Why should propane tanks not be refueled in a closed trailer or truck?
A) Propane vapor is one and one-half times heavier than air and will linger in the floor of the truck or
trailer.
B) The propane vapor is odorless and the refuelers may be overcome by the fumes.
C) Propane is very cold and could cause damage to the truck or trailer.
407. - PLT250
When ample liquid propane is available, propane will vaporize sufficiently to provide proper
operation between the temperatures of
A) +30 to +90°F.
B) -44 to +25°F.
C) -51 to +20°F.
408. - PLT253
The initial temperature at which propane boils is
A) +32°F.
B) -44°F.
C) -60°F.
409. - PLT253
In hot air balloons, propane is preferred to butane or other hydrocarbons because it
A) is less volatile.
B) is slower to vaporize.
C) has a lower boiling point.
410. - PLT251
If ample propane is available, within which temperature range will propane vaporize sufficiently to
provide enough pressure for burner operation during flight?
A) 0 to 30°F.
B) 10 to 30°F.
C) 30 to 90°F.
緑色の問題は、Airplane以外やPrivate以外の問題です。(このページには飛行機の問題はありません。）
