MORTAR EXAM

Question 1

What is the magnification of the M67 sight?

Answer 1

4x

Question 2

What is the field of view for the M67 sight?

Answer 2

10 Deg

Question 3

Nomenclature for the 60mm cannon?

Answer 3

M225A1 cannon

Question 4

Nomenclature for the 60mm bipod?

Answer 4

M170A1

Question 5

Nomenclature for the 60mm Baseplate?

Answer 5

M7A1 baseplate

Question 6

Nomenclature of the 60mm Boresight?

Answer 6

M115 boresight

Question 7

What are the mil adjustments for the upper and lower saddle of the M170A1 Bipod?

Answer 7

Upper = 0800-1100 mils
Lower = 1101-1511 mils

Question 8

What is the azimuth adjustment for the M170A1 bipod?

Answer 8

250 mils

Question 9

What is the Range (MAX/MIN) conventional and handheld mode for the M224A1 60mm mortar?

Answer 9

Conventional
Min-70m Max-3490m
Handheld
Min-70m Max 1340m

Question 10

Rate of fire for the M224A1 60mm mortar?

Answer 10

Maximum
30 RPM (4 min)
Sustained
15-20 *Round dependent

Question 11

The M7A1 baseplate has how many mils of rotation?

Answer 11

6400 mils

Question 12

The M8 baseplate has how many mils of rotation/sector coverage?

Answer 12

1600 mils

Question 13

What are the 4 types of ammunition used for the 60mm mortar?

Answer 13

HE, WP, Illumination, & Training

Question 14

M720/M720A1 Cartridge

Answer 14

HE
3490m max range
M734 multioption fuze

Question 15

M888 Cartridge

Answer 15

HE
3520m max range
M935 PD fuze

Question 16

M768 Cartridge

Answer 16

HE
3490m max range
M738 PD/DLY fuze

Question 17

M721 Cartridge

Answer 17

ILLUM
3200m max range
MTSQ fuze

Question 18

M722/M722A1

Answer 18

SMK (WP)
3200m max range
M722-M745 PD fuze
M722A1- M783 PD/DLY fuze

Question 19

M734 Fuze Characteristics

Answer 19

Multi-option fuze for the M720 HE 
Can be set to function as a 
proximity burst (1-4m above the surface)
NSB (0-1m above the surface)
Impact/SQ
DLY (0.05 sec)

Question 20

M935 Fuze Characteristics

Answer 20

Point Detonating Fuze for the M888 HE
can be set to SQ or DLY
Has standard pull wire safety
Can be used with 60/81mm mortar

Question 21

81mm Mortar Nomenclature

Answer 21

M252A1

Question 22

81mm Bipod Nomenclature

Answer 22

M177A1

Question 23

What is the elevation in mils of the M177A1 elevation hand wheel?

Answer 23

0800 to 1511 mils

10 mils per turn

Question 24

What is the total traverse of the M177A1 bipod?

Answer 24

100 mils left or right from center

(10 mils) per turn

Question 25

M252A1 max range?

Answer 25

Min - 83m | Max - 5608m

Question 26

M252A1 Rates of Fire?

Answer 26

Maximum 30 RPM (2 min) Sustained 15 RPM (Indefinitely)

Question 27

M2 Aiming Circle magnification and field of view?

Answer 27

4x power | 10 deg

Question 28

What is the azimuth rotation of the M2?

Answer 28

6400 mils

Question 29

What is the elevation/depression maximum and minimum

Answer 29

800 mils elevation | 400 mils depression

Question 30

What is the declination constant?

Answer 30

The clockwise angle between grid north and magnetic north

Question 31

Why are declination stations established?

Answer 31

To determine the declination constants of instruments and to correct for local attractions, annual variations, and instrument errors

Question 32

What must a declination station point have?

Answer 32

Must have at least 2 distant well defined points with a known grid azimuth

Question 33

How far must the M2 be placed from railroad tracks, tanks, and trucks?

Answer 33

75m

Question 34

Vehicles?

Answer 34

50m

Question 35

Barbed Wire?

Answer 35

30m

Question 36

Mortars or Telegraph?

Answer 36

25m

Question 37

Helmets and other shit

Answer 37

10m

Question 38

The principle of reciprocal laying is based on the geometrical theorem thats states if 2 parallel lines are cut at a transversal, the alternate interior angles are equal

Answer 38

TRUE

Question 39

Nomenclature for the 120mm mortar system?

Answer 39

M120

Question 40

Nomenclature for the 120mm cannon?

Answer 40

M298 cannon

Question 41

M298 cannon weight?

Answer 41

110lbs

Question 42

Nomenclature for the M120 baseplate?

Answer 42

M9 baseplate

Question 43

Weight of the M9 baseplate?

Answer 43

136lbs

Question 44

what is the elevation for the M120 ground mounted?

Answer 44

0710-1510

Question 45

Total traverse of M191 Bipod?

Answer 45

316

Question 46

How many mils per turn on the traverse hand wheel for the M191 bipod?

Answer 46

5 mils

Question 47

What is the max/min range for the M120 mortar?

Answer 47

``` Max = 7200m Min = 200m ```

Question 48

M120 rates of fire?

Answer 48

Max - 16 RPM (First min) | Sustained - 4 (Indefinitely)

Question 49

Bursting radius of the M120?

Answer 49

70m

Question 50

Bursting radius for the M252A1?

Answer 50

40m

Question 51

Bursting radius for the M224A1?

Answer 51

30m

Question 52

3 Employment Techniques

Answer 52

Employment by platoon, section, and squad

Question 53

Methods of Recon

Answer 53

Map Air Ground (Best Method)

Question 54

9 factors in position selection

Answer 54

``` Mission Accomplishment Tactical Situation Range Target Area Coverage Survivability Overhead and Mask Clearance Surface Conditions Communications Routes ```

Question 55

Range Criteria

Answer 55

Mortars should be able to fire at least 1/2 to 2/3 their range to the front of the forward elements of the supported friendly force

Question 56

3 Types of Occupation

Answer 56

Deliberate Hasty Emergency

Question 57

5 Firing Formations

Answer 57

Parallel, Lazy W, Diamond, Triangle, & Six mortar star

Question 58

2 methods used to fire without an FDC?

Answer 58

Direct Lay | Direct Alignment