1- Downlock mechanism for the aircraft landing gear consist of which component? a. Upper drag brace, lower drag brace, j

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1- Downlock mechanism for the aircraft landing gear consist of which component?
a. Upper drag brace, lower drag brace, jury strut and downlock pin
b. Upper drag brace, lower drag brace, dual spring, jury strut and downlock pin
c. Upper drag brace, lower drag brace, dual spring and jury strut
2- In an opposite actuator retraction the excessive hydraulic fluid pressure shall be relieved by ?
a, Pressure relief valve
b. Manual bleed valve
c. Check valve
3- The actuator use for the restraction and extension of the landing gear is of which type?
a. Single acting
b. Double acting
c. Brake type actuator
4- A leaking actuator can be trace from the defect of the ring such as o ring and u ring, taken into consideration of "years in service" what would be the issue?
a. Oversize ring
b. Aging
c. Human error
5- During which sequence that hydraulic pressure is active for the purpose of landing gear retraction and extension operation?
a. Transit and uplock
b. Transit and downlock
c. Transit just before donwlock and uplock
6- Any part of aircraft landing gear component which made of cadmium plated is a cause for concern due to?
a. Human health
b. Damage to component
C. Enviromental issue
7- Microswitches design to enable the failure at uplock position for what purpose?
a. To warn and inform the pilot on the proper action to be taken in those situation instead of failure at uplock which could end up with extension
b. To warn and inform the pilot on the proper action to be taken in those situation instead of failure at downlock which could end up with belly landing
c. To warn and inform the pilot on the proper action to be taken in those situation instead of failure at transit which could end up with belly landing
8- The PT runs automatically when the differential pressure between the green and yellow systems is more than?
a. 500 psi
b. 100 psi
c. 3000 psi
9- Downlock mechanism is provided by?
a. Hydraulic pressure, spring, over center lock and additional safety ground pin
b. Spring, over center lock and additional safety ground pin
c. Spring, over center lock and additional safety ground pin
d. PSEU and WoW
10- Due to the type of material trunnion were made of the most suitable NDT would be?
a. Only FPT applicable
D. Thermography and acoustic
c. ET, UT and FPT
11- Uplock mechanism for the aircraft landing gear consist of which component?
a. Hook, hook spring, roller, latch, latch spring and manual extension cable
b. Hook, hook spring, roller, latch, latch spring and manual extension cable
c. Hook, hook spring, roller, latch, latch spring and manual extension cable
12- The device use to detect and inform the aircraft computer system PSEU on the positioning of the aircraft landing gear is known as?
a. Microswitches
b. Tacometer
c. Squat switches
13- An excessive cleaning on the trunnion using abrasive method may lead to which type of defect?
a. Hydrogen embrittlement
b. Accidentally removal of the coating lead to the formation of pitting corrosion under stress and SWAMP area.
c. Mechanical damage such as sractch and dent below 0.imm
14- Common issue with a hydraulic actuator for aircraft landing gear system are?
a. Intermittent signal
b. Short circuit
c. Leaking, corrosion, crack and pressure
15- By using a hand pump, pressure of 100 PSI has been built up in a hydraulic system. the hand pump piston is 1 inch in diameter. A 1/2-inch line connects the hand pump to an actuating cylinder 2 inches in diameter. What is the pressure in the line between the hand pump and the actuator?
a. 100 psi
b. 150 psi
c. 50 psi