Exam 4 Ballistics

Question 1

1. It is the rear end of the bore of firearms where the cartridge is inserted in to the chamber.

A. Muzzle​​
C. chamber
B. breech​​
D. rear of the bore​

Answer 1

breech

Question 2

2. These are spiral grooves cut in the bore of a rifle or pistol barrel.

A. Riflings
​​​C. grooves
B. striations​​​
D. scratches​​

Answer 2

Riflings

Question 3

3. Treats of the effects of the projectile’s impact on the target. It studies the effect of the projectile at the end of its trajectory.

A. Blowback
​​​C. Exterior Ballistics
B. Terminal​​​
D. Terminal Ballistics

Answer 3

Terminal Ballistics

Question 4

4. It is the straight distance between the muzzle of the gun and the target.

A. Trajectory
​​​C. maximum range
B. range​​​
D. accurate range​​

Answer 4

range

Question 5

5. It is a part of the cartridge case, which serve the purpose of limiting the forward travel of cartridges into their chamber.

A. shell crimp
​​​C. crimp
B. shell cannelure
​​D. rim​​

Answer 5

rim

Question 6

6. These are grooves which are sometimes found rolled into the necks and bodies of cases at the location of the bullet’s base to prevent it from being pushed back or loosened.

Answer 6

shell cannelure

Question 7

7. The part of the mouth of the cartridge case that is turned in upon the bullet for the purpose of holding the bullet in place.

Answer 7

Crimp

Question 8

8. The bottom portion of the case, which contains the head stamps, designed to indicate the name of the manufacturer and year made.

Answer 8

base

Question 9

9. The primer with two flash-hole.

Answer 9

berdan type

Question 10

10. It is a metallic or non-metallic projectile propelled from a firearm.

Answer 10

Bullet

Question 11

11. This class characteristic is dependent upon bore diameter, groove width and the number of rifling and.

Answer 11

A. width of the land

Question 12

12. A class characteristic which can be determined by measuring the remainder of the circumference after subtracting the groove width.

Answer 12

B. width of land

Question 13

13. Class characteristic showing the direction of the spiral groove.

Answer 13

A. twist of rifling

Question 14

14. It is the action of a bullet consisting of a stable rotation while in flight.

Answer 14

A. Gyroscopic

Question 15

15. It is the shortest distance between two sides or edges of a groove.

Answer 15

B. groove width

Question 16

16. Part of the barrel interior and these are termed as the remnants when the rifling stage is completed.

Answer 16

B. lands

Question 17

17. It is the distance measured between two opposite portions of the depressed interior surface of the barrel.

Answer 17

B. groove diameter

Question 18

18. Characteristic of firearms commonly termed as factory specifications.

Answer 18

A. class characteristics

Question 19

19. The elevated portions of the barrel in the fired bullet cause these.

Answer 19

B. land marks

Question 20

20. It is also known as caliber.

Answer 20

bore diameter

Question 21

21. Most commonly these are found on bullets fired from a revolver due to poor alignment of the cylinder with the bore.

Answer 21

shaving marks

Question 22

22. In the campaign against the fanatical natives of the north-west frontier of India at the close of the last century of English army, they invented a kind of bullet which were called DUM-DUM or otherwise called expanding bullets, they are ;

Answer 22

C. incendiary bullet

Question 23

23. When two specimens are compared under the comparison microscope at the same direction, the same level, the same magnification and the same image , they are called;

Answer 23

​C. juxtaposition

Question 24

24. The science which deals with the motion of the projectile towards the target is called;

Answer 24

​C. exterior ballistics