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EXAM PREP > MORTAR EXAM > Flashcards

MORTAR EXAM Flashcards

1
Q

What is the magnification of the M67 sight?

A

4x

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2
Q

What is the field of view for the M67 sight?

A

10 Deg

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3
Q

Nomenclature for the 60mm cannon?

A

M225A1 cannon

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4
Q

Nomenclature for the 60mm bipod?

A

M170A1

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5
Q

Nomenclature for the 60mm Baseplate?

A

M7A1 baseplate

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6
Q

Nomenclature of the 60mm Boresight?

A

M115 boresight

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7
Q

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

A 
Upper = 0800-1100 mils
Lower = 1101-1511 mils
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8
Q

What is the azimuth adjustment for the M170A1 bipod?

A

250 mils

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9
Q

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

A

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

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10
Q

Rate of fire for the M224A1 60mm mortar?

A

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

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11
Q

The M7A1 baseplate has how many mils of rotation?

A

6400 mils

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12
Q

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

A

1600 mils

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13
Q

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

A

HE, WP, Illumination, & Training

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14
Q

M720/M720A1 Cartridge

A

HE
3490m max range
M734 multioption fuze

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15
Q

M888 Cartridge

A

HE
3520m max range
M935 PD fuze

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16
Q

M768 Cartridge

A

HE
3490m max range
M738 PD/DLY fuze

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17
Q

M721 Cartridge

A

ILLUM
3200m max range
MTSQ fuze

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18
Q

M722/M722A1

A

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

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19
Q

M734 Fuze Characteristics

A 
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)
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20
Q

M935 Fuze Characteristics

A

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

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21
Q

81mm Mortar Nomenclature

A

M252A1

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22
Q

81mm Bipod Nomenclature

A

M177A1

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23
Q

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

A

0800 to 1511 mils

10 mils per turn

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24
Q

What is the total traverse of the M177A1 bipod?

A

100 mils left or right from center

(10 mils) per turn

25
Q

M252A1 max range?

A

Min - 83m

Max - 5608m

26
Q

M252A1 Rates of Fire?

A

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

27
Q

M2 Aiming Circle magnification and field of view?

A

4x power

10 deg

28
Q

What is the azimuth rotation of the M2?

A

6400 mils

29
Q

What is the elevation/depression maximum and minimum

A

800 mils elevation

400 mils depression

30
Q

What is the declination constant?

A

The clockwise angle between grid north and magnetic north

31
Q

Why are declination stations established?

A

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

32
Q

What must a declination station point have?

A

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

33
Q

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

A

75m

34
Q

Vehicles?

A

50m

35
Q

Barbed Wire?

A

30m

36
Q

Mortars or Telegraph?

A

25m

37
Q

Helmets and other shit

A

10m

38
Q

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

A

TRUE

39
Q

Nomenclature for the 120mm mortar system?

A

M120

40
Q

Nomenclature for the 120mm cannon?

A

M298 cannon

41
Q

M298 cannon weight?

A

110lbs

42
Q

Nomenclature for the M120 baseplate?

A

M9 baseplate

43
Q

Weight of the M9 baseplate?

A

136lbs

44
Q

what is the elevation for the M120 ground mounted?

A

0710-1510

45
Q

Total traverse of M191 Bipod?

A

316

46
Q

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

A

5 mils

47
Q

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

A 
Max = 7200m
Min = 200m
48
Q

M120 rates of fire?

A

Max - 16 RPM (First min)

Sustained - 4 (Indefinitely)

49
Q

Bursting radius of the M120?

A

70m

50
Q

Bursting radius for the M252A1?

A

40m

51
Q

Bursting radius for the M224A1?

A

30m

52
Q

3 Employment Techniques

A

Employment by platoon, section, and squad

53
Q

Methods of Recon

A

Map
Air
Ground (Best Method)

54
Q

9 factors in position selection

A 
Mission Accomplishment
Tactical Situation
Range
Target Area Coverage
Survivability 
Overhead and Mask Clearance 
Surface Conditions
Communications
Routes
55
Q

Range Criteria

A

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

56
Q

3 Types of Occupation

A

Deliberate
Hasty
Emergency

57
Q

5 Firing Formations

A

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

58
Q

2 methods used to fire without an FDC?

A

Direct Lay

Direct Alignment

EXAM PREP (1 decks)

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