Mortars

Question 0

Number of mortars in PLT?

Answer 0

3-5

Question 1

What is the MAX distance allowed between firing positions?

Answer 1

300 m

Question 2

Number of mortars in SQD?

Answer 2

1

Question 3

Number of mortars in section?

Answer 3

2-3

Question 4

What does RSOP stand for?

Answer 4

Reconnaissance
Selection (position)
Occupation of mortar
Positions

Question 5

What are the three methods by which recon can be done?

Answer 5

Map
Air
Ground

Question 6

What are the 9 criteria that must be considered when selecting mortar firing positions?

Answer 6

Mission accomplishment 
Tactical situation 
Range 
Target area coverage
Survivability
Overhead and mask clearance
Surface conditions
Communications 
Routes

Question 7

What is the 1/2 to 2/3 rule?

Answer 7

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

Question 8

What is overhead interference?

Answer 8

Interference overtop of mortar positions, ie, trees or buildings

Question 9

What is mask interference?

Answer 9

To the front of mortar: hill, building, or tree

Question 10

What are the three types of occupation?

Answer 10

Deliberate
Hasty
Emergency

Question 11

Deliberate occupation

Answer 11

Extensively planned and prepared for

Question 12

Hasty occupation

Answer 12

Not as much planning or prep as deliberate

Question 13

Emergency occupation

Answer 13

Takes place when call for fire received while the platoon tactically moving

Question 14

Most important criteria to remember during displacement?

Answer 14

Range

Question 15

Two triggers of displacement?

Answer 15

1. Commander orders platoon to displace

2. Event oriented: time schedule, phases, phase lines, or receipt of code words

Question 16

When platoon displacement used?

Answer 16

When there is little immediate likelihood of enemy contact

Question 17

What is biggest risk of platoon displacement?

Answer 17

Platoon cannot provide immediate fire support while moving

Question 18

What are the five mortar firing formations?

Answer 18

Parallel
Lazy W
Diamond
Triangle 
Six mortar star formation

Question 19

Burst area for 60 mm mortars?

Answer 19

30 m

Question 20

Burst area for 81 mm mortars?

Answer 20

40 m

Question 21

Burst area of 120 mm mortars?

Answer 21

60 m (Old)
70 m (New)

Question 22

What is nomenclature for 81 mm mortar?

Answer 22

M252

Question 23

Max elevation for M252?

Answer 23

1511 mils

Question 24

Minimum elevation for M252?

Answer 24

0800 mils

Question 25

How many mils for each turn of elevation wheel?

Answer 25

10 mils

Question 26

Total turns on traversing hand wheel?

Answer 26

20 turns

Question 27

Minimum range of M252?

Answer 27

83 m

Question 28

Maximum range of M252?

Answer 28

5,608 m

Question 29

What is max ROF on the M252?

Answer 29

30 rds per minute for 2 minutes

Question 30

What does BAD stand for?

Answer 30

Blast Attenuator Device

Question 31

How do you achieve max range on M252?

Answer 31

Lowest elevation, Max charge(4)

Question 32

How do you achieve minimum range on M252?

Answer 32

Max elevation, 0 charges

Question 33

When do you bore sight a mortar?

Answer 33

Before firing it

Question 34

What is the most important criteria when selecting firing position?

Answer 34

Mission accomplishment

Question 35

What is the minimum range that you can Boresight a mortar at?

Answer 35

200 m

Question 36

Range of angle of site scale?

Answer 36

1200-0-1200 mils

Question 37

What is the azimuth scale on the M2 compass?

Answer 37

0-6400 mils

Question 38

Weight of M2 compass?

Answer 38

8 oz

Question 39

Dimensions of M2 compass closed?

Answer 39

2 3/4 in x 1 1/8 in

Question 40

What increments of mils on angle of site mechanism?

Answer 40

20 mil increments

Question 41

How is angle of site on M2 compass numbered?

Answer 41

Every 200 mils

Question 42

What color is north seeking arrow on M2 compass?

Answer 42

White

Question 43

What color is the azimuth reading arrow (South end)?

Answer 43

Black

Question 44

When is M2 compass used to lay in Mortars?

Answer 44

Only when it's the only means for getting direction

Question 45

What mil increments are on azimuth scale?

Answer 45

20 mil increments

Question 46

How is azimuth scale numbered?

Answer 46

200-mil intervals

Question 47

Which member of mortar team responsible for placing stakes?

Answer 47

AG

Question 48

What deflection and elevation settings on M252 when laying the gun?

Answer 48

Deflection 3200 mils | Elevation 1100 mils

Question 49

What are deflection and elevation set at when boresighting M252?

Answer 49

Deflection 0 | Elevation 0800

Question 50

How far out are far and near stakes places from mortar position?

Answer 50

Far 100 m | Near 50 m

Question 51

Total mils on traversing bar?

Answer 51

200 mils, 100 L and R of center

Question 52

What does section sergeant say when he's oriented the 0-3200 line and he's ready to lay in mortars?

Answer 52

"Aiming point this instrument."

Question 53

What does gunner say after he's been directed to orient to the aiming circle and has done so?

Answer 53

"Aiming point identified"

Question 54

After orienting vertical line in sight dead center down the lens of respective gun sight, what does he announce to the gunner?

Answer 54

The deflection

Question 55

After gunner receives command to change deflection what does he do?

Answer 55

He repeats the deflection, splits the lens of aiming circle and announces,"ready for recheck."

Question 56

Once gun and aiming circle are sighted on each other, with a difference of no more than 1 mil, gunner announces what?

Answer 56

"0 (or 1) mil, mortar laid."

Question 57

When gunner makes announcement that gun is laid in, what does section sergeant say?

Answer 57

"Refer sight to 2 8 0 0 deflection and set out aiming stakes."

Question 58

How far aiming stakes placed out for reciprocal lay?

Answer 58

1 at 100 m and the shorter 1 at 50 m