Inspect and repair

32.When gauging the profusion of the firing pin;
A. Extractor and barrell must be removed
B. Barrell must be removed and the plunger be below the low step of the gauge
C. Barrell must be removed and the plunger be above the high step of the gauge
D. Only the barrell needs to be removed
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Terms in this set (29)
32.When gauging the profusion of the firing pin;
A. Extractor and barrell must be removed
B. Barrell must be removed and the plunger be below the low step of the gauge
C. Barrell must be removed and the plunger be above the high step of the gauge
D. Only the barrell needs to be removed
D
33. The master serial number for this weapon is found on;
A. Body, right side
B. Upper surface on the bench block
C. Left side of the body
D. Left side of locking lever
C
34.During and inspection the weapon serial number was found to be illegible the correct action to take is;
A. The component is to be disposed of as small arms scrap
B. Sentence the weapon Z for repair
C. The weapon is not sentenced YUF
D. Re engrave the numbers/proof marks at unit level
B
35. The components listed below are to be marked with a clear serial number;
A. Body barrell breech block
B. Breech block locking lever body
C. Barrell and locking lever
D. Breech block, locking lever body and barrell
A
36. When fitting a new piston it must be observed that there is;
A. Total minimum movement at 6.0 mm present, measured at the piston head
B. No articulation, and the distance between the extension front face and the end of the piston is within the given tolerance
C. No articulation present
D. Total minimum movement of 0.50mm measured at the piston head
D
37. A level 3 repair to a fractured tripod leg atop plate is to;
A. Fit and silver solder a new pair of aluminium alloy atop plates
B. Manufacture and rivet new stop plates from low carbon steel sheet
C. Manufacture and rivet new stop plates aluminium alloy
D. Exchange the bi pod legs
C
38. At level 2 piston articulation should be;
A. A maximum of 6.0 mm
B. A maximum of 0.50 mm
C. A minimum of 0.127 mm
D. A minimum of 1.27mm
A
39. The first adjustment, when the feed cover assembly is insecure at 90 degrees is to;
A. Reduce the top edge of the plunger
B. Remover bottom edge of plunger
C. Replace plunger springs
D. Replace the plunger
A
40. As bore wear increases through firing, some lifting of the chrome playing may occur. Such barrells are to replace when?
A. The leading face of the gauge plug 0.304 inches enters the barel by more than 152.4 mm at breech end
B. The gauge plug 0.297 inches will not pass freely through the bore
C. The leading face of the gauge plug 0.306 inches enters the barrell by more than 101.6 inches at breech end
D. The leading face of the gauge plug 0.306 inches enters the barrell by less than 101.6 mm at breech end
C
41. If the lug on the underside of sear is broken off then;
A. With the action forward the dear is bent up
B. The safety catch cannot be applied
C. With the action forward the safety catch can be applied
D. With the action to the rear the safety catch cannot be applied
C
42. During the assembly of the buffer housing, it is correct that; A. Washers have their convex faces together B. The single washer at the front has its convex face forward C. The single washer at the front has its convex face rearward D. All washers have their concave faces forwardC43. When the weapon is reported as firing sluggishly the first check would be; A. The pill off the trigger assembly B. The fit of the sleeve on the gas block C. The correct assembly of the gas regulator D. The fit of the gas plugC44. During an inspecting of the gun at level 2, it is noticed that chrome is lifting in the gas cylinder the correct action is to; A. Sentence for repair at level 3 B. Exchange gas cylinder C. Remove any lifted chrome using a wire brush D. Accept as long as the piston movement is unaffectedD45. During the balancing procedure, after firing the first burst, it is nessasary to; A. Screw in the gas regulator 4 clicks B. Draw the cocking handle to the rear and check its position C. Unscrew the gas regulator a further 2 clicks D. Unscrew the regulator 4 clicksB46. A combination of an accuracy and function test is required, after completion of which one of the following repairs? A. Fitting of a replacement barrell B. Replacing a back sight assembly C. Replacing a barrell locking nut D. Fitting a new piston assemblyA47. When blank firing barells are being used; A. Cartridge headspace is to be gauged and the barrell can then be used with any weapon B. The 0.306in. Bore wear gauge must meet the criteria as specified C. Paint the flash suppressor with specified paint D. It is essential the correct head space e soars for the gun to which they are being used, and the SBFS attachment and carrying handle must be yellowD48. Should complete freedom not exist, between the breech block locking lever and the link, immediate level 2 action is to; A. Replace both locking lever and the link and range test for functioning B. Strip the assembly, in order to adjust and range test for functioning C. Sentence the assembly for repair at level 3 D. Lubricate and manipulate by hand, until freedom is restoredD49. Referring to the gas operated weapons, the term balancing means the adjustment of; A. The gas plug to restrict the flow of the gases B. The gas plug to ease the flow of the gases C. The gas regulator, so that the weapon fired single shot D. The gas regulator for reliability and accuracyD50. The repair for the machine gun with a distorted flash eliminator at level 2 is; A. Sentence for repair at level 3 B. Exchange the barrell C. Straighten the eliminator and refit D. Replace eliminatorD51. Should an ejector spring weight be found below the accepted minimum, and a replacement spring of the correct weight is not immediately available. The immediate action would be to; A. Sentence the weapon unfit to fire until replacement spring is available B. Stretch the exsisting spring until it becomes off limits C. Sentence the weapon to fire blank ammunition only D. Leave the weapon as serviceable and repair when spares are availableA52. During an inspection of the barrell is it noticed the manufacturers identification letters and tear of manufacture differ to those of the master serial number on the gun the correct action is to; A. Lightly bar out, the master serial numbers of the gun and engrave the characters from the barrell in their place B. Lightly bar out with chisel, the characters on the barrell ensuring the remain legible C. Bar out the characters on the barrell ensuring they become illegible D. Sentence Z for repairB53. The first adjustment when the feed cover assembly is insecure at 90 degrees is to; A. Remove metal from the top edge of the plunger B. Remove metal from the bottom edge of the plunger C. Replace the plunger springs D. Replace the plungerA54. Whilst inspecting a gun at level 2, it is noticed that chrome is lifting in the glass cylinder, the correct action is to; A. Sentence to repair at level 3 B. Exchange the gas cylinder C. Remove any lifted chrome, using a wire brush D. Accept as long as the piston movement in unaffectedD55. During the replacement of the piston a check of articulation must show; A. A total minimum movement in any one direction, of 6.0 mm present at the end of the piston B. No articulation and the distance between the extension front face and the end of the piston is within the given tolerance C. No articulation present D. Total minimum movement in anyone direction, of 0.50 mm present at the end of the pistonD56. The piston is found to be unserviceable, than lever 2 action is to; A. Sentence the piston assembly to repair at level 3 B. Exchange both the piston and the piston extension C. Fit a new piston D. Sentence the weapon level 3 repair, unfit to fireC57. After gauging firing pin protrusion, a new firing pin would need to be fitted, if the protrusion gauge plunger was; A. Between each step B. Flush with the top step C. Above the lower step D. Below the lower stepD58. If cartridge headspace is found to be excessive on inspection is it essential to first; A. Replace the breech block and then re check B. Replace to piston extension assembly then re check C. Check for burrs on the breech block face,remove burrs then re check D. Ensure that the barrell is not being held off the barrell stop face by burrsD59. If the barrell is found to have axial movement exceeding 0.05 mm when carrying out the engagement test, the first correct action is to; A. Replace the barrell B. Regard the condition as acceptable C. Replace the barrell nut D. Send the the gun to level 3 repairC60. Prior to gauging profusion of the firing pin, the; A. Extractor and barrell must be removed B. Barrell must be removed and the plunger must be below the low step of the gauge C. Barrell must be removed and the plunger must be above the high step of the gauge D. Barrell needs to be removedD