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NS3 Unit 6 Sections 1-2

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What is the art and science of projectile

a)

Weaponry

b)

Trajectory

c)

Gunnery

d)

Ballistics

2.

What are all armaments of a single type and size on a ship?

a)

Trajectory

b)

Battery

c)

Gunnery

d)

Ballistics

3.

What is the main consideration that governs the type of weapons a ship has?

a)

Ship's Mission

b)

Ship's age

c)

Ship's draft

d)

Ship's beam

4.

What factor increased naval gun range to nine miles by the time of World War I?

a)

Rifled barrels

b)

Detailed studies of trajectory

c)

Studies of ballistics

d)

All of the answers are correct

5.

What kinds of weapons are used to provide protection for an entire formation of ships?

a)

Point defense

b)

Area defense

c)

Auxiliary defense

d)

Frontal defense

6.

What is the advantage of having a combat system like aegis within a force of ships?

a)

Combat system integrates all ship's batteries and can operate them in coordination with those of other ships in company.

b)

Each ship's weapons become part of the total weapons array available to the task force commander.

c)

He or she can designate the ship or ships best equipped and positioned to engage the target.

d)

All of the answers are correct

7.

What types of naval weapons have received the greatest attention since World War II?

a)

Lightweight, rapid-fire guns

b)

Surface and air-launched missiles

c)

Sophisticated electronic fire-control radars, weapons control systems, sonar, and guidance systems

d)

All of the answers are correct

8.

Which of the following is NOT a significant result of increased ranges of seaborne weapons?

a)

An increase in the importance of naval firepower in land warfare

b)

An increase in the effectiveness of naval as compared to land-based firepower

c)

An increase in the importance of amphibious warfare

d)

An increase in the importance of surface and submarine warfare

9.

The decrease lethal range of nuclear weapons has required the introduction of dispersion tactics to maximize combat damage.

a)

True

b)

False

10.

The main consideration governing selection of a ship's weapons is its combat missions.

a)

True

b)

False

11.

What kinds of weapons are used to provide protection for an entire formation of ships?

a)

Point defense weapons

b)

Area defense weapons

c)

Auxiliary defense weapons

d)

Frontal defense weapons

12.

What kinds of weapons provide self-protection for a single ship?

a)

Point defense weapons

b)

Area defense weapons

c)

Auxiliary defense weapons

d)

Frontal defense weapons

13.

Briefly, what must a weapon system include?

a)

A destructive payload capable of destroying the target, either on contact or when in close proximity

b)

Elements that deliver or initiate delivery of the destructive payload of the weapon to the target

c)

Elements of fire control that guide a weapon and set the fuse of its warhead

d)

All of the answers are correct

14.

After Pearl Harbor the principal tasks remaining for the battleship were naval gunfire support during an amphibious assault, and to serve as defensive gunnery platforms fitted with extensive antiaircraft armaments to protect the carriers.

a)

True

b)

False

15.

The introduction of naval gunfire enabled destruction of an enemy ship at a distance, without necessarily resorting to grappling hooks and a hand-to-hand, board-and-capture operation.

a)

True

b)

False

16.

What factors increased naval gun range to nine miles by the time of World War I?

a)

Rifled barrels

b)

Detailed studies of trajectory

c)

Studies of ballistics

d)

All of the answers are correct

17.

Which type of projectile has relatively thin walls and a large burster charge?

a)

Fragmenting

b)

Illuminating

c)

Incendiary

d)

Penetrating

18.

Which weapon system is designed to be a ship's last-ditch defense weapon against an antiship cruise missile?

a)

The 8-inch/60-caliber single-mount gun

b)

The Oto Melara 76 mm rapid-fire, dual-purpose mount

c)

The 5-inch/54-caliber automatic, dual-purpose mount

d)

The Phalanx close-in weapons system

19.

Which type of special purpose projectile is normally used to confuse enemy search and fire-control radar?

a)

Illuminating

b)

Incendiary

c)

Chaff

d)

Proximity-fused

20.

What type of ammunition is standard in 3-inch and smaller guns?

a)

Case

b)

Bag

c)

Fixed

d)

Semifixed

21.

The length of the barrel of 3-inch guns and larger is usually expressed in calibers that are equal to the length of the gun in inches divided by the __________ of the gun in inches.

a)

Circumference

b)

Barrel length

c)

Diameter

d)

Radius

22.

The __________ is the part of a round of ammunition that is expelled at high velocity from the gun bore by the burning propelling charge.

a)

Projectile

b)

Ogive

c)

Star shell

d)

Fuse

23.

Which of the following is NOT one of the five kinds of special purpose projectiles.

a)

Fragmenting projectiles

b)

Illuminating (star shells) projectiles

c)

Incendiary projectiles

d)

Chaff (radar interference) projectiles

24.

Rifling a gun barrel causes the projectile to spin in flight, keeping the projectile from tumbling after it leaves the barrel and ensuring greater accuracy and range.

a)

True

b)

False

25.

The __________ of a gun is its inside or bore diameter measured from the tops of the rifling lands (high edge of the rifling grooves). It is expressed in inches or millimeters.

a)

Ogive

b)

Chaff

c)

Caliber

d)

Flak

26.

The length of the barrel of 3-inch guns and larger is usually expressed in calibers that are equal to the length of the gun in inches divided by the __________ of the gun in inches.

a)

Circumference

b)

Barrel length

c)

Diameter

d)

Radius

27.

On what does the effective range of a gun depend?

a)

Initial velocity imparted to the projectile by the propellant

b)

Weight of the projectile

c)

Ability of the sensors and fire-control systems to detect and track the target

d)

All of the answers are correct

28.

The __________ has a solid propellant rocket motor, which is intended to extend the ranges of larger naval gun projectiles.

a)

Rocket Assisted Projectile

b)

Phalanx Close-In Weapon System

c)

Sea-Ram

d)

Six-barrel Vulcan Gatling

29.

Most post-World War II destroyers and cruisers have 5"/54 and 62-caliber automatic, dual-purpose, single-mount guns.

a)

True

b)

False

30.

What is the range of 5"/54 and 62-caliber automatic, dual-purpose, single-mount guns in miles?

a)

100 nautical miles with a 27-pound shell

b)

13 nautical miles with a 72-pound shell

c)

15 nautical mile with a 96-pound shell

d)

72 nautical mile with a 13-pund shell

31.

What is the close-in shipboard weapon in wide use today?

a)

Rocket Assisted Projectile

b)

Phalanx Close-In Weapon System

c)

Sea-Ram

d)

Oto Melara 76-mm (3-inch) 62-caliber rapid-fire

32.

What are the principal components of a round of gun ammunition?

a)

Propellant/Projectile

b)

Projectile/Star Shell

c)

Star Shell/Shrapnel

d)

Shrapnel/Projectile

33.

From the standpoint of the propellant, what kind of gun ammunition is used most in the active fleet today?

a)

Fixed/Semifixed

b)

Semifixed/Unfixed

c)

Unfixed/Fixed

d)

All of the answers are correct

34.

The __________ is the part of a round of ammunition that is expelled at high velocity from the gun bore by the burning propelling charge.

a)

Propellant

b)

Ogive

c)

Projectile

d)

Fuse

35.

The proximity-fused (VT) shell is designed to detonate at a position that will cause the greatest damage to that target. A VT fuse contains a radio transceiver that emits pulses of radio energy and receives a portion of these pulses reflected back from the target. When the returning pulse is strong enough, it will set off the fuse.

a)

True

b)

False