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heavy > MCQs RPG > Flashcards

MCQs RPG Flashcards

1
Q

The—— has been introduced to provide the rifle platoon with a powerful and yet a light anti tank weapon.

A

Anti tank grenade RPG7

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2
Q

The RPG7 is ———- open tube and has no recoil

A

Shoulder controlled

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3
Q

The ——- is obtained by gas pressure produced by the burning of a propellant charge inside the rocket.

A

Initial motive force

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4
Q

The weapon is fired by a ———- which is struck by a ——— when the trigger is pressed

A

Firing pin, cocking piece

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5
Q

RPG7 can be used against all types of ——— with accuracy ensuring ———.

A

A and B vehicles, a first round hit

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6
Q

When the rocket is fired, gases and flames emerge from ———- at high velocity

A

Convergent-divergent nozzle

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7
Q

Number 1 and 2 must take precautions against the back blast, danger zone of which extends up to ———- from the rear of the launcher.

A

30 meters

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8
Q

The RPG 7 grenade is a ———-, ——- with two pistol grips one for steady holding of the launcher and the other with trigger and firing mechanism

A

Smooth bore, open end tube

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9
Q

The middle of the tube is ——- and covered with a ———-

A

Enlarged, wooden casing

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10
Q

The rear end has a ——- shape

A

Bell mouth

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11
Q

One —— and a ——- is fitted to the body on the left side of the tube.

A

Fixed mechanical sight, telescopic sight

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12
Q

The ——- fired from the launcher is rocket shaped and is loaded from the front of the launcher i.e the ———-

A

Anti tank grenade RPG7, muzzle end

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13
Q

If the rocket does not encounter and object within ——— seconds of firing, the ————-, detonates primer of the self destruction device and explodes the grenade nose.

A

4 to 6 seconds, electric detonator

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14
Q

It is a ——- weapon and is used to launch ————.

A

Smooth barrel, HEAT and practice rockets

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15
Q

The —— rocket is capable of penetrating heavy armour upto ——-

A

HEAT, 320mm

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16
Q

The fuze is a ——- which produces a voltage when the nose of the round is crushed against an ———

A

Piezo electric type, inner skin

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17
Q

If it is fired into sandbags the ——— of fuze will function but the ——— will by then have broken up and the effect on target is virtually nil

A

Self destruction element, main HEAT charge

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18
Q

The missile has reasonable accuracy if there is no cross wind but with a cross wind it is ———

A

Erratic

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19
Q

The ——— directs the flight of the grenade and retracts the burnt gases after firing

A

Barrel assembly

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20
Q

It consists of a smooth bore tube with a —— , having the shape of widened breech end a ——— interconnected with a ———-

A

Chamber, sleeve, thread

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21
Q

The ——— is welded to the tube to prevent accidental unscrewing

A

Sleeve

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22
Q

The barrel is ————- plated

A

Chromium

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23
Q

Mounted in the left side of the barrel is the ——— and a mount for the ————

A

Open sight, telescopic sight

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24
Q

There are two lugs for the front and rear swivel for the. ——-

A

Shoulder strap mounting

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25
Q

The ——— has a recess for fixing the round while loading

A

Muzzle face

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26
Q

———— secured around the barrel with clamping collars, prevent the operator from heat burns while firing the launcher

A

Two wooden guards

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27
Q

The ——- is designed to detonate the igniting primer of of the shell

A

Firing pin mechanism

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28
Q

The sight mechanism of the anti tank grenade launcher RPG 7 consists of the ——— and ———— which allow the firing at fixed and moving targets to a range of up to 500m.

A

Open sight, telescopic sight

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29
Q

Frequent ——— of the launcher is however inadvisable as it results in unnecessary wear and tear

A

Stripping

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30
Q

The launcher should be stripped and assembled on a table or on a ———.

A

Clean ground sheet

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31
Q

The grenade launcher can be stripped in field condition for ——— and stripped in detail for ——- etcetra

A

Field maintenance, thorough checks and inspection

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32
Q

Insert trigger mechanism locking pin by pressing it in with the ——-

A

Wrench

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33
Q

Detailed stripping is done to ———- of grenade launcher and to ——— the launcher

A

Defective parts, thoroughly clean

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34
Q

While detaching the spring rod, act with due care since the rod can be thrown out with force by the tension of the compressed ———

A

Cocking spring

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35
Q

The ————- is aimed at timely detection and elimination of faults and malfunctions.

A

Inspection

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36
Q

One must bear in mind that minor faults if not detected and eliminated in time can cause heavy damage to the grenade launcher and may even render it ———

A

Unservicable

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37
Q

The ———— should flash into the bore and return to the previous level i.e flush with the bore

A

Firing pin

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38
Q

Before ——— wipe the outer surface of the launcher and clean the bore

A

Detailed inspection

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39
Q

The outer surface of the ——— should be free from bulged metal notches

A

Muzzle and breech faces

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40
Q

There should be no cracks or Chipping on the ————

A

Wooden barrel covers

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41
Q

The ———- should securely clamp the barrel covers to the outer surface of the barrel

A

Clamping collars

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42
Q

The ——— should be free from bends and must be intact

A

Foresight tip

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43
Q

The ——— on sight leaf should be clearly visible

A

Painted figures

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44
Q

The ——— and ———- should be easily movable from the horizontal to vertical position and vice versa without without winding, and must be securely fixed in the upright position

A

Sight leaf , foresight

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45
Q

The —— should be free from chipping of chromium plating, rust, cracks, scratches or dirt

A

Bore

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46
Q

The ——— should be beyond the barrel ear and properly fixed

A

Split nosed firing pin end

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47
Q

The —— and the side piece fastening screw should be properly secured

A

Cover screws

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48
Q

The ——- should move upwards with force without bending or jerking

A

Armed cocking piece

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49
Q

The ——- should move from one position to the other without too much effort and must be securely fixed in both the above positions

A

Safety lock

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50
Q

No dents, notches, scratches or cracks should be on the the outer surface of the fire and trigger mechanism ————

A

Body and cover

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51
Q

——— from the grenade launcher and detach the cover to inspect the firing and trigger mechanism

A

Remove the grip

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52
Q

The parts of the ———— should be free from cracks, scratch, rust or other defects

A

Firing and trigger mechanism

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53
Q

——— for cleaning the carbon deposit in the barrel, sleeve and other parts of the launcher

A

Alkaline compound in water

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54
Q

———— for lubricating the bore and darts of the launcher mechanisms after cleaning. This lubricant is used at temperature ———-

A

Normal rifle lubricant, above 5 degrees centigrade

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55
Q

Rifle oil for lubricating the parts and mechanisms of the grenade launcher at an air temperature———

A

Below 50 degrees centigrade

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56
Q

Use ———- for leather parts of slings and covers of the grenade launcher

A

Saddle lubricant

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57
Q

———— causes the steel to rust and destroys the rust preventive qualities in the oil readily

A

Moist and salty air

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58
Q

———- can be used to remove lubricants especially after long periods of storage

A

Kerosene

59
Q

After using water, alkaline compound or kerosene, the parts and mechanisms of the grenade launcher should be thoroughly wiped with ——— and lubricated.

A

Flannel or tissue paper

60
Q

The sight is a ————- instrument and it must be handled with care

A

Precision telescopic

61
Q

Under ——- conditions, the sight should be stored in a ——— which protects the light from moisture and dust.

A

Camp, wooden box

62
Q

Do not wipe the ———- with carbon waste which has been used for wiping other parts of the sight

A

Sight lenses

63
Q

The best firing positions for ——— is the one which gives the greatest flexibility, combined with comfort and steadiness

A

Moving targets

64
Q

Tanks should preferably be engaged from trenches or other suitable shelters since the splinters of the armour and the grenade may fly up to a distance of ———-

A

100 - 150 meters

65
Q

The muzzle should be held and kept at a height of at least ——- from the ground prevent the breaking of the grenade stabiliser fins

A

20 centimetre

66
Q

Care should be taken to see that no personnel, ———-, explosives or other inflammable materials are located within ———- behind the launcher

A

ammunition, 30 meters

67
Q

Moving targets may be engaged at ———-, if the target is ——- high RPG7

A

330 meters, 2.7 meters high

68
Q

Owing to extreme elevation of the launcher at a distance of over ——-, the back blast will strike dangerously close to the crew, the —— position is therefore not recommended beyond the range.

A

330 meters

69
Q

Number 1 lies at an angle of approximately ——- to the line of fire

A

45 degrees

70
Q

If forced to track a moving target from the first laying position, number 1 should maintain the ———- so that his legs do not even accidentally enter the back blast area.

A

45 degrees angle

71
Q

If the round is tight or if the grenade retainer does not sit in the recess in the muzzle end, the round is turned ——- and pushed in

A

Counter-clockwise

72
Q

The ——- has been found to be the best when firing in the open or behind the cover.

A

Kneeling position

73
Q

—— may be adopted when firing from high cover or when taking a quick shot in the open

A

Standing position

74
Q

In defence normally the ——— will be used, while firing from a ——- emplacement

A

Standing position, fire trench

75
Q

The ———- of the launcher is meant to assist in accurate laying of the launcher on the target

A

Sight equipment

76
Q

The launcher is fitted with telescopic sight ——— and ——— and an open sight both allow firing at static and moving targets upto a range of 500 meters

A

PGO-7 , PGO-7B

77
Q

For elementary practice silhouette tank targets should be pinned on a wall or screen ——- from the launcher

A

10 yards

78
Q

The sight works on ——- inverting system with a reticle arranged within its focal plane along with a rangefinder scale for measuring the range of 2.7 meters high target from ———

A

Prism type, 200 to 1000 meters in 100 meters graduations

79
Q

All the parts of the sight are made as a single unit and this complete unit is called ————-

A

The sight body

80
Q

The objective is encased in the carriage both of which can be rotated in the vertical and horizontal plane by the movement of ————

A

Lateral and elevation adjustment screws

81
Q

The sight offers to measure the distance, speed and lead to be applied for a target at a distance between ———.

A

200 to 1000 meters

82
Q

The sight is the same in all the characteristics of ———, less the ——— which offers the measurement of speed, distance and lead to be applied to engage the target.

A

PGO7 ( old sight), reticle pattern

83
Q

The network scale further comprises two scales i.e ——— and ————

A

Range scale and lead lines

84
Q

Range scale from top to down, is marked as 1,2,3,4 and 5 graduated in ————

A

100 meters

85
Q

As the effective range of RPG - 7 for a moving target is ——- meters, therefore the ——— is prominent than other four lines in range scale

A

300 meters,Line 3

86
Q

At the top centre of the reticle pattern the horizontal line is intersected by ———— known as ———

A

17x vertical lines, lead lines

87
Q

The central line contains ——- the bore sight cross at the top which is also known as ———-

A

+ sign, line of fire

88
Q

There 8 x vertical line, on either side of the line of fire marked after interval of —— ( from line of fire to outward)

A

4,8,12 and 16 each

89
Q

Each vertical line represents 1x lead for a target moving with the speed of ——-

A

2 meters/ second

90
Q

———- will be applied from the same side of reticle pattern from where the target is approaching

A

Lead

91
Q

Below the range scale, there are three diagonal scales to determines the range of target having heights of ——— respectively

A

1.5, 2.3 and 3 meters

92
Q

An upper dotted curved line with the figure ——— written above it

A

2, 4, 6, 8 and 10

93
Q

A lower continuous straight line with the figure ——— written under each

A

1.5, 2.3 and 3 written under each

94
Q

The figure above the dotted curved lines represents the distance in ———- and figure under the straight line represents the ——- in meters

A

100 of meters, height of the target

95
Q

At the bottom of reticle pattern the horizontal line, marked 0, 1, 2, 3, 4 and 5 graduated in 100 of meters, is known as ———-

A

Speed scale

96
Q

If a target is at 300 meters moving from left to right, coincides the target with figure 3, the ——— will be the speed of the target in meters/ second.

A

Number of line the target crosses in one second

97
Q

The telescopic sight is installed on the ———-

A

Grenade launcher fastening strip

98
Q

To assist the firer in lying the launcher at night and in conditions of adverse visibility the sight has ——— and ———-

A

An inbuilt illuminating set, an auxiliary winter illuminating set

99
Q

The illuminating set uses ———

A

One mercury oxide cell ( type20 p2k)

100
Q

On/off is indicated on russian made sights and on Korean models as ——— respectively

A

BK/BBIK

101
Q

Two light filters are issued with each sight an orange filter for use under ——— and a neutral or smokey filter for use in ———.

A

Conditions of poor light or haze, bright sun and glare

102
Q

A ——- covers the eye piece to block unwanted light from the viewer’s eye and a rubber cover is provided for ———

A

Rubber eye shield, objective lens

103
Q

The ——— is a canvas pouch and is used to keep the sight along with the spare parts, tools and accessories, and for its protection, when mounted on the launcher

A

Sight carrier

104
Q

All carriers do not have inner and outer pockets, some only have pockets ———

A

On the outside

105
Q

This sight is constructed on a ——— and has a foresight and rear sight

A

Normal open sight system

106
Q

A single non modified foresight tip is meant for use in temperature below ———-

A

Four degrees centigrade

107
Q

When the sight is raised a plus (+) sign is visible which is pliant for fire in temperature above ———

A

Two degrees centigrade

108
Q

In the raised position the ———- protrudes slightly above the built in tip

A

Plus (+) tip

109
Q

The rear sight is also housed in a casing and is ———-.

A

Leaf spring loaded

110
Q

The rear sight has the ——- cut into it which indicates a ———.

A

Figure 1,2,3,4 and 5, range of one to five hundred meters

111
Q

With the ——- the launcher is aimed like a normal rifle i.e —— of the rear sight and the tip of the foresight are brought in line with firer’s eye and the target

A

Raised sight, “V”

112
Q

Since ——— is designed as a normal rifle sight, with it will be on the same principle

A

Mechanical sight

113
Q

It must be remembered that in all cases of engagement of moving targets, only ——- can be estimated and as such some deviation of point of impact from the point of aim must be expected and accepted

A

Apparent speed

114
Q

The best method of teaching ——— is by explaining with the help of a diagram and if possible the working of actual parts should be shown

A

Trigger operation

115
Q

The firing pin mechanism which detonates the ——— of the rocket grenade consists of firing pin, bearing, ——- and firing pin locking nut

A

Ignition primer, firing pin spring

116
Q

The ——— is shaped like a needle ; a ——— carries the firing pin spring, collar and tail section

A

Firing pin, cylindrical housing

117
Q

——— supports the upper end of the firing pin spring and has a hole to receive the firing pin and a rocket for the firing pin spring

A

Bearing bushing

118
Q

———- is meant, to return the firing pin after firing, to the initial position

A

Firing pin spring

119
Q

The ——— screwed into the rocket of the firing pin mechanism and controls the movement of the firing pin

A

Firing pin locking nut

120
Q

The ——— actuated by its spring is held in the lower most position

A

Firing pin

121
Q

The ——- of the pin protrudes outside beyond the locking nut hole

A

Tail section

122
Q

With the cocking piece striking the ——-, the firing pin spring moves upwards and the firing pin hits the ignition primer of the grenad

A

Tail section

123
Q

The ——— fire the launcher

A

Firing and trigger mechanism

124
Q

The middle section has two sockets for the ——- and for the ——-

A

Plunger and safety lock plunger and its spring

125
Q

The ——- has recesses from the plunger and a recess for connecting the body to the barrel by means of the ——- of the firing pin mechanism base

A

Rear section, lug

126
Q

The body ends with a plate which together with the two wooden side pieces form the ———-

A

Launcher grip

127
Q

The ———- strikes the firing pin when the trigger is pressed

A

Cocking piece

128
Q

The cocking piece rotates on a pin screwed in the firing and trigger mechanism body and had a —— for arming it

A

Serrated tongue

129
Q

There are two lugs ——- and a——— which are coupled with the sear

A

A cocking nose, safety lug

130
Q

The ——— prevents the accidental firing of the launcher by limiting the movement of the trigger

A

Safety lock

131
Q

The safety lock has a collar and two recesses which the ——— occupies, when pressed, depending on the position of the safety lock

A

Safety plunger

132
Q

The ——- is a fiat spring provided with a tooth at the front end for engaging the cocking piece

A

Sear

133
Q

The ——— of the sear has a hole for fastening the sear to the body of the firing and trigger mechanism with a screw

A

Tail section

134
Q

The ——- and ——— imparts the rotary motion necessary for bearing the cocking piece to strike the firing pin

A

Plunger, plunger spring

135
Q

The rate of fire is from ———, but may be increased if the launcher team is more proficient in its handling

A

4 to 6 rockets per minute

136
Q

The ——— being rigidly fixed can only be checked for accuracy and cannot be adjusted at user level. The ——— can, however, be adjusted.

A

Open sight, telescopic sight

137
Q

The ——— can be used indoors or under bad visibility conditions effectively , whereas an outdoor area and good visibility are essential for ———

A

Testing target method, the aiming point method

138
Q

Place the testing target at a distance of ——— from the rear sight slide. Ensure with the help of a ———, that testing target is upright

A

20 meters, plumb line

139
Q

Sight the launcher keeping the eye about ——— behind the rear sight

A

15 centimetres

140
Q

The testing target method. Repeat the process at least ———

A

Four times

141
Q

Select an aiming point at a distance of approximately ———- from the launcher

A

300 meters

142
Q

While checking the ————, check the correctness of ——- on the aiming point periodically to ensure correct zeroing

A

Sighting equipment

143
Q

The primary role of the anti tank grenade launcher RPG 7 is to ——
The —- is used for this role

A

Kill tanks, HEAT rocket grenade

heavy (5 decks)

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