Chapter 2, Rockets Flashcards
Acceleration and deceleration apply to rocket fuzes that use a gear timing device in conjunction with what principle?
Setback principle
A rocket misfire that fires From delayed ignition is known by which of the following terms?
Hangfire
The solid fuel used in a rocket motor is known by which of the following terms?
Propellant grain
What term applies to a safety feature designed into a fuse with a gear timing device?
Setback
Presently, all rocket motor tubes are made from what material?
Aluminum
With a venture-type nozzle design, the gas pressure inside a rocket motor provides approximately what percentage of the force required to move the container forward?
70%
A round of service rocket ammunition is contained in which of the following component/components?
Motor, warhead, and fuze
An internal burning, star perforation, double-base, solid propellant is contained in which of the following rocket motor?
2.75 inches and 5.0 inches
To restrict or control burning, inhibitors are used on what areas of the propellant grain?
Aft end, forward end, and outer diametrical surface
If inhibitors were NOT used in rocket motors that use propellant grain, what action would occur?
An increased burning rate
On a 2.75 inches rockets motor, where is the igniter located?
Forward end of the motor
Inhibitors cause the propellant grain to burn in which of the following directions?
Center to outward and forward to aft
What a rocket component prevents an unstable burning of the propellant grain?
Stabilizing rod
What rocket component ensures that the propellant grain ignites simultaneously forwards and aft?
Stabilizing rod
The igniter in a 5.0 in rocket contains how many squibs?
Two
An mk 66 nozzle assembly consists of all EXCEPT which of the following items?
An igniter
When NOT installed in a launcher, what device holds the spring-loaded fins of an Mk-71 rocket motor in the closed position?
Fin retainer band
Rocket warheads are classified in which of the following ways?
Flare, flechette, and smoke
Information pertaining to specific contain in which of the following NAVAIR publications?
11-75A-92
When required, base fuzes are assembled in high explosive warheads at which of the following locations?
The factory
HE-FRAG warhead are used against which of the following targets?
Personnel
A warhead designated WDU-4a/a is of (1) what type and (2) fits what diameter rocket?
(1) flechette (2) 2.75 inch
What publication governs aircraft rockets and rocket systems?
NA 11-75A-92
The mk 34 mod 0 is what type of warhead?
Smoke
What are the two primary classifications of rocket fuzes?
Nose and base
An mk 193 mod 0 fuze is installed in what warhead?
Mk 33 mod 1
A rocket fuze that functions after the rocket strikes the target with enough resistance to cause crushing or disarrangement of actuating parts is known as what type of fuze?
An impact firing fuze
An impact-firing fuze is located in what part of a warhead?
The nose or base
Which of the following fuzes contains a clock mechanism?
Mk 193 mod 0
What type of rocket fuze is used in the base of a WDU-4A/A flechette warhead?
An acceleration-deceleration fuze
What type of rocket fuze has an electronics package in the forward end?
A proximity fuze
What 5.0 inch rocket motor has one motor for all launch speed applications?
MK 71
Aircraft rocket launchers are classified in which of the following ways?
2.75 inch or 5.0inch and readable or nonreausable
For detailed information on the LAU-61 and LAU-68 (series) rocket launchers, you should refer to which of the following NAVAIR publications?
11-75A-92
The LAU-10 series rocket launcher has which of the following type of suspension?
A 14in and 30in suspension
The frangible fairings on rocket launchers are made of what material?
Impregnated molded fiber
What component permits preflight selection of either ripple or single firing of rockets from an aircraft rocket launcher?
A mode selector switch
What component of a rocket launcher is used to prevent lauded rockets from being fired?
A breaker switch
When rocket launchers are loaded, the defend pin should be installed in the breaker switch at which of the following times?
Before the launcher is ladies with rocket motors
When the mode selector switch in 19 shot pod is in the single fire position, what total number of rockets are fired by the intervalometer for each firing pulse it receives?
Two
In the LAU-10 (series) rocket launcher, what component retains the rocket motor in the launching tunes during shipping, handling, and flight?
A spring-loaded detent pawl
The rocket motor is retained in a launcher tube by what means?
A detent
What authority may authorize the disassembly or alteration of rocket components?
NAVAIRSYSCOM
When a rocket is fired from the LAU-10 (series) launcher, what force causes the detent pawl to release from the rocket detent groove?
Spring tension
The frangible fairings on rocket launchers are made of what material?
Impregnated molded fiber
What component permits preflight selection of either ripple or single firing of rockets from an aircrafts rocket launcher?
A mode selector switch
What component of a rocket launcher is used to prevent lauded rockets from being fired?
A breaker switch
When rocket launchers are loaded are slides, the detent pin should be installed in the breaker switch at which of the flossing times?
Before the launcher is loaded with rocket motors
A situation in which a rocket does NOT fire when the firing circuit is energized is known by which of the following terms?
Misfire
Rocket motors should be stowed in the same manner as which of the following powders or explosives?
Smokeless powder
Fuses and warheads should be disposed of if they are dropped onto a hard surface more than what’s described number of feet?
5 feet
When, if ever, should a loaded rocket launcher be electrically tested?
A loaded rocket launcher should NEVER be tested
A minimum distance, as indicated in the unit, must be maintained between a gas turbine exhaust path and the rocket assemblies upon which the exhaust impinges. In the absence of specific information on the unit, what minimum distant must be maintained?
10 feet
If for any reason you think a fuze is armed, which of the following procedures should you follow?
Treat the fuze as an armed and sensitive fuze
Ready-service stowage of assembled rockets is authorized for the 2.75 in and 5.0 aircraft rockets according to which of the following publications?
NAVSEA OP4 and NAVSEA OP5
In an ammunition loading area, smoking should not be permitted within what prescribed number of feet?
200 feet
