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Assignment 1-Cont. - 14001_273
Assignment 2-Cont. - 14001_275

Aviation Boatswains Mate E 3 & 2 - Aviation theories and other practices
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ASSIGNMENT 2 Textbook Assignment: “Mark 7 Aircraft Recovery Equipment and Barricade Systems”; chapter 3, pages 3-1 through 3-68. 2-1. The Mk 7 recovery equipment is divided into a total of how many major systems? 1. Five 2. Two 3. Three 4. Four 2-2. What is the purpose of the Mk 7 2-3. 2-4. 2-5. arresting engine constant runout control (CRO) valve? 1. To control fluid flow from the engine cylinder to the accumulator 2. To control the hydraulic pressure maintained in the accumulator 3. To reduce peak tension on the purchase cables during arrestment 4. To allow equal payout of both ends of the deck pendant The aircraft weight selector is adjusted while the arresting engine is in the battery position. This adjustment causes a change in the position of what component of the CRO valve? 1. The cam 2. The plunger 3. The upper lever 4. The lower lever Which of the following statements is correct concerning the valve sleeve and stem movement of the CRO valve? 1. At a 1:1 ratio, the sleeve and stem move 1/4 in. 2. At a 1:1 ratio, the sleeve and stem move 1/2 in. 3. At a 4:1 ratio, the sleeve and stem move 1/2 in. 4. At a 4:1 ratio, the sleeve and stem move 1/4 in. What controls the variation in the size of the opening of the CRO valve? 1. The drive system 2. The aircraft weight selector setting 3. The cam rotation 4. The plunger movement 2-6. What is the function of the CRO valve weight selector indicator circuit? 1. 2. 3. 4. To enable the synchro system to give a remote indication of the aircraft weight setting To energize the circuit enabling the PRI-FLY operator to make remote weight settings from his station in PRI-FLY To energize the circuit enabling the arresting gear officer to give a “clear deck” signal in the landing area To complete the circuit enabling the LSO talker to energize the Heads Up Display (HUD) 2-7. What is the purpose of the four vertical elongated holes machined into the retract valve seat? 1. To allow fluid to pass through the valve from the main engine cylinder 2. To allow fluid to pass through the valve from the accumulator 3. To allow fluid to pass through the  valve  from  the  anchor dampers 4. To minimize the weight of the valve 2-8. Which of the following statements best describes the action of the return spring of the retract valve retraction lever? 1. 2. 3. 4. The spring pulls up on the retract lever, which in turn pulls down on the plunger and valve stem The spring pulls up on the retract lever, which in turn pulls up on the plunger and valve stem The spring pulls down on the retract lever, which in turn pulls down on the plunger and valve stem The spring pulls down on the retract lever, which in turn pulls up on the plunger and valve stem 6







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