H&K MP5 Sub-Machine Gun Final 6 Test Quiz Questions

[hoppy70]

H&K MP5 Sub-Machine Gun Final 6 Test Quiz Questions

I am semi-retired and I am taking a self-passed and self-taught Armorers course and now I am on the H&K MP5 Sub-Machine Guns I hope to become a part-time light Gunsmith in the future.

There are over 60 quiz questions covering this firearm and I have answered most of them but during my study and research I am having some problems related to some of the following quiz questions. Either I am not sure of the correct answer or I have conflicting answers.

Can you help me determine the correct answers for these few 6 quiz questions?

Thanks for your help.

Note #13. The counting wheel moves the sear release latch after the third shot of a burst for what purpose?
a) So that the sear is released to engage in the hammer notch, thus holding the hammer rearward
b) So that the counting wheel can return to its start point
c) So that the pawl on the shifter rod can catch the hammer
d) To prevent the sear from catching the hammer

Note #14. What locks up the gun?
a) The bolt rotating into locked position in the recesses cut in the barrel extension
b) The locking block is cammed up into the recess in the top of the receiver by the bolt carrier
c) The nose of the locking piece pushes the rollers into the locking recesses of the barrel extension
d) The camming surfaces on both sides if the inner receiver push the rollers into the locking piece of the bolt head

Note #15. What activates the ejector upward?
a) The ejector isn't activated (does not move), it is pinned
b) The camming surface on the bottom rear of the bolt carrier
c) The lower wing on the firing pin
d) The extractor spring is also the ejector spring

Note #16. The rollers are part of the system that delays the locking system from opening until pressures from the fired cartridge have safely dissipated. True or False.
a) True
b) False

Note #17. There are two long recesses cut into both sides of the receiver that the rollers travel in during the bolts rearward travel. True or False.
a) True
b) False

Note #18. Locking pieces from suppressed and standard unsuppressed MP5s cannot be interchanged and can be dangerous to do so! True or False
a) True
b) False

 

[paintballdude902]

13 a
14 d
15 b
16 true
17 ummmmmm not sure
18 true


i can recite the entire cycle of operations for the 40mm bofors autocannon but i have no experience with locking roller guns

 

[Ian]

14 - C. The rollers come out from the bolt and lock into the cutouts in the trunnion (aka barrel extension). When the locking piece and firing pin move backwards, the rollers can retract into the bolt and it can move rearward.

17 - False. The roller are fully inside the bolt head during bolt movement.

I think paintballdude's other answers are correct.

 

[boricua9mm]

I'm not so sure I'd want a gunsmith who cheated on the test to be touching my MP5!

 

[SKLFCO]

I would rather have an honest smith tell me he/she is still learning rather than give the impression they knew all. But then again I do not let anyone touch my equipment.

 

[hoppy70]

I am not cheating on a test. I have answered all of these questions. I am only checking on questions I have had problems with finding the correct answers. I am working part time with a Gunsmith with over 45 years experience and I have my 07 FFL. Thanks for the help!

 

[MasterSergeantA]

Good luck on the test, hoppy!