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Assignment 2-Cont. - 14020_289
Assignment 2-Cont. - 14020_291

Aviation Structural Mechanic E2 - How airplanes are built and how to maintain them
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(REFER TO FIGURE 2-2 IN THE TEXT TO ANSWER ITEMS 2-50 THROUGH 2-54.) IN ITEMS 2-50 THROUGH 2-54, SELECT FROM 2-50. 2-51. COLUMN B THE COMPONENT IN THE CANOPY SYSTEM THAT PERFORMS THE FUNCTION(S) LISTED IN COLUMN A. COMPONENTS IN COLUMN B MAY BE USED MORE THAN ONCE. A. Functions B. Components Operates on 1. Flow nitrogen pres- regulators sure received from the canopy 2. Timer pneumatic con- check trol on the valve module canopy pneumatic timer 3. canopy- lock Vents pneumatic pneumatic A. Functions pressure from the actuator canopy hydraulic actuator to the 4. Canopy canopy pneumatic pneumatic 2-54. control module timer for canopy closing 2-52. Vents/pressurizes the canopy hydraulic actuator shutoff valves 2-53. Controls the operational speed of the canopy hydraulic actuator Moves the canopy forward to the locked position or aft to the unlocked position 2-55. {Refer to figure 2-2 in the text.) What valve prevents the canopy pneumatic reservoir from going to zero pressure when a leak develops in the system’s servicing charging module? 1. Restrictor 2. Relief 3. Shutoff 4. Check 2-56. (Refer to figure 2-2 in the text.) When auxiliary mode is selected to unlock the canopy, nitrogen is directed to the unlocking side of the canopy-lock pneumatic actuator at what pressure? 1. 225 psi 2. 325 psi 3. 3,000 psi 4. 4,100 psi IN ITEMS 2-57 THROUGH 2-61, SELECT FROM COLUMN B THE COMPONENT IN THE CANOPY SYSTEM THAT PERFORMS THE FUNCTION(S) LISTED IN COLUMN A. COMPONENTS IN COLUMN B MAY BE USED MORE THAN ONCE. 2-57. Allows normal pneumatic pres- sure or auxiliary pneumatic pressure to enter the canopy lock pneumatic actuator 2-58. Causes the module valves to lock pressure in the canopy hydraulic actuator for canopy counter- balance 2-59. Permits auxiliary B. Components 1. Low pressure Sensor 2. 325 psi pressure reducer 3. Shuttle Valve 4. Auxiliary Unlock pneumatic release valve pneumatic reservoir pressure to be applied to the shuttle valve 2-60. Provides the normal operating pneumatic pressure for the system 2-61. Operates the No. 5 and No. 6 valves in the pneumatic control module 2-62. Which of the following valves will prevent aver-pressurization of the canopy pneumatic system? 1. Reservoir relief 2. 1250 psi relief 3. 500 psi relief 4. Restrictor 12







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