Chapter 1 Self Test Flashcards
(401) 2. What is the purpose of the before ICBM security modernization program [BISMP] security pit control station?
To control the access shaft lights and to raise and lower the secondary door.
(401) 1. What is the purpose of the security pit?
Provides for controlled access to the primary and secondary doors.
(401) 3. Where is the site activation remote controller (SARC) connected?
To connector J1A in the security pit control station or the alternate location in the personnel access hatch (PAH)
(401) 4. What actions must a technician take to secure the A-vault door in the security pit?
Scramble the lock by rotating the dial a minimum of four times and stopping at the pre-set number on the combination dial. This will set the sensitive switch to the proper position and close that portion of the IZ switch loop. Then perform a T-handle check and lift check.
(401) 5. How is the primary door secured?
It is locked by a bolt that when extended from the security pit, engages a lug on the bottom of the primary door.
(401) 6. How is the hand driven linear actuator (HDLA) used?
To open and close the primary door
(401) 7. What does the backup generator provide?
The generator provides auxiliary electrical power to lower the secondary door during LF power failures.
(401) 8. What components on the after ICBM modernization security program [AISMP] secondary door top are automatically operated and what is used to control them?
The security pin, actuator locking bar, and locking bolts; the site activation remote controller (SARC)
(401) 9. Before securing the secondary door, why is it importantt to verify both combination locks are operational?
To precent secondary door lockout which involves a costly and destructive entry procedure.
(401) 10. What happens if the locking bolts aren’t retracted within the security pin retraction window of time?
It will result in the security pin reengaging and the site penetration sequence will have to be re-accomplished.
(401) 11. How many ladder sections are there [BISMP] and [AISMP] and what connects the ladder to the top of the secondary door?
[BISMP] four sections [AISMP] three sections; shear [BISMP] screw(s), [AISMP] bolt(s)
(401) 12 What do the switches and indicators on the site activation remote control (SARC) allow for?
Topside command and control of secondary door and provide system status
(401) 13. Where can you change the actuator’s mode of operation and what are the different modes? How is enhanced maintenance mode entered?
Front panel of the secondary door control assembly (SDCA); operational,maintenance and enhanced maintenance modes when the mode selector switch on the SDCA is set to maintenance and the EMA gearbox safety pin is engaged.
(401) 14. Which secondary door control assembly (SDCA) panel could you turn the personnel access hatch (PAH) lights off from?
[AISMP] swing-out panel
(401) 15. What would a steady alarm from the wall alarm indicate?
When secondary door is in motion
(401) 16. [BISMP] What can the security pit control station selector switch do if the EMLA control box switch was set to RAISE?
The secondary pit switch cannot stop door motion, but can only reverse direction of travel
(401) 17. [BISMP] What does the emergency drive shaft rod engage in the manual drive guide?
The pressure is transferred to the driver shaft which causes the cam collar to engage a release lever which then releases tension on the friction disks to enable the motor drive shaft rotation.
(402) 1. What component stores up energy for on-demand use when the LF commercial power cannot meet that demand?
The energy storage system (ESS) which gets power from the motor drive cabinet.
(402) 2. What does the motor drive cabinet (MDC) prevent the secondary door from doing?
From over traveling the maximum extended length of approximately 199 inches and restricts the secondary door retracted length of approximately 51 inches.
(402) 3. At what rate does the EMA raise and lower the secondary door respectively?
Raises at a nominal rate of 10 inches per second and lowers the secondary door at a nominal rate of five inches per second.
(402) 4. What allows positioning control and position status monitoring of the secondary door?
The incremental and absolute encoders
(403) 1. When will LF forced entry be performed?
After all nondestructive methods to open the secondary door have been exhausted.
(403) 2. What part of the LF is partially destroyed?
The launcher closure (LC)
(403) 3. What must occur for the launcher closure (LC) lock to be unlocked?
The lock pins to clear the lock housing
