词汇与结构Normally, pressurization problems are caused by a malfunctioning of the pressure outflow or the pressure regulating valves _______, which allows the air to escape out of the pressurized cabin.
举一反三
- 词汇与结构The amount and pressure of the ________ air is regulated by a computer and outflow valves.
- Overload protection on hydraulic system is provided by the use of （）. A: stop valves B: pressure relief valves C: balance valves D: regulating speed valve
- Diesel engine air start system check valves are opened by （） A: an air start cam B: cylinder compression pressure C: starting air pressure D: valve spring
- 词汇与结构 If the cabin were ______ at sea level pressure while flown above 35,000 feet the pressure differential would exceed 9 psi limiting the structural life of the fuselage.
- What is the function of the feed valve A: Allows for easy pressure changes. B: Ensures that air pressure in the system is consistent. C: Prevent air loss from the brake pipes. D: Controls brake application.