Updated NJROTC NS3 Study Set

There are currently more than 190 nations in the United Nations. How many were there originally?

51

Two of the benefits of Sea Power include:

Not as limited by geographical features and political constraints

Can easily replenish fuel, stores and ammunition at sea whenever required

How far along is humankind in its search for knowledge of the ocean's depths?

We have just scratched the surface.

Which of the following countries is leading the way in making use of the supply of energy ocean tides supply?

France

The presence of mobile sea forces near land areas where conflict threatens to break out

Deterrence

The vessels of a nation that are engaged in commerce

Merchant Marine

Which of the following is NOT one of the chokepoints areas for the passage of oil between the Persian Gulf and Europe?

The Strait of Malacca

A nation having at least one shoreline bordering on international waters

Littoral nation

The ocean area which has become a naval operating area only since the advent of the nuclear submarine is the

Arctic Ocean

Which of the following is one of the two major political developments since World War II that has increased the importance of the oceans?

The rapid increase in the number of new nations

What is the body of water at the southern tip of Africa called?

The Cape of Good Hope

What is another word for Sea-Farming?

Aquaculture

With regards to sea power, tactical mobility can be defined as the ability to

move naval forces quickly and disperse whenever and however necessary.

The tactic of "vertical envelopment" has become possible because of what invention?

The helicopter

The Mediterranean Sea is a part of which main ocean area?

Atlantic

The two major technological developments since World War II are

Increased inland reach of sea power and nuclear power.

The Afro-Asian Ocean includes the

South Atlantic and Indian Oceans.

The Afro-Asian Ocean is especially important to us today because its sea lanes

carry the bulk of the foreign oil from the Middle East.

Sea power enables

All of the above are correct.

Insofar as natural resources are concerned, the United States

must import much oil and other strategic materials.

The use of chemical and biological warfare agents has been mostly held in check since which war?

WWII

START, the agreement between the United States and the former Soviet Union brought what result?

It reduced the levels of nuclear warheads.

Put the history of chemical warfare in chronological order.

WWI poisonous gases: chlorine; phosgene; sulfur mustard

Nerve agents developed pre- and post-WWII: tabun; sarin; VX

Iraq used sulfur mustard gas > 40 alleged instances

Tokyo: sarin {11 deaths}

Identify the following as a

(L) Lung-Damaging Agent (B) Blister Agent

1. Nitrogen mustard

2. Chlorine

3. Phosgene oxime

4. Diphosgene

BLBL

Unconventional CBR weapons of any type, especially nuclear weapons

Special weapons

A poison gas that burns or blisters the tissues of the body

Blister gas

Non lethal but produces mental symptoms such as hallucinations, anger and sleeplessness

Psycho gas

What is used to wage biological warfare?

A living organisms

How do biological agents differ from chemical agents?

Biological agents are non-volatile.

Biological agents require an incubation period.

Biological agents are odorless.

When you go to the dentist they put a lead apron on you to absorb unnecessary x-rays. What is the least material needed to stop alpha particles?

paper

What are the three phases of decontamination aboard ships?

Phase 1) Saltwater washdown; Phase 2) Repair-party personnel scrub ship; Phase 3) Repair ships and tender continue decontamination

A system of colloidal particles dispersed in a gas; smoke or fog

Aerosol

A wall of heavy mist at sea, or cloud of dust on land, created when a column of water or dirt formed by the explosion falls back into the surface

Base surge

Electromagnetic Pulse; a short burst of electromagnetic energy

EMP

What has kept the use of chemical and biological weapons so rare in modern combat?

The understanding that once one side uses these weapons, the other side would as well.

What type of nuclear explosion will result in little heat or light and very little initial radiation?

A subsurface burst

How does an undersea nuclear burst create the majority of its damage?

Intense underwater shock and heavy residual radiation.

What type of chemical agents produce unpleasant symptoms, but usually last only a short period and are not intended to cause death?

Tear gases

A nuclear air burst weapon is characterized by:

High thermal radiation and little residual radiation

Which type of chemical warfare agent is considered to be the most deadly?

Nerve agents

1 Select the answer that corrects the statement.

The 1907 Hague Convention required that floating mines deactivate after a period of time.

C The statement is correct.

2 Which of the following are methods of planting mines?

A Submarine

B Aircraft

C Surface

3 _______: Glass tube - Inertia switch

Influence: Magnetic - Acoustic - ________

A Contact; Pressure

4 Degradation of mines due to exposure to elements such as saltwater, high temperatures, etc.., that may render mines unable to explode, or more sensitive to disturbance and too easily exploded

B Deterioration

5 A naval mine set off by the vibrations of specific sounds, such as those made by a ship

C Acoustic mine

6 What are the three major types of mine countermeasures?

A Ship treatment against magnetic and acoustic mines, Minesweeping, and Mine hunting

7 Why do mines incite a different sort of fear than other ordinary weapons?

C Mines bring a profound psychological effect.

8 Which of the following are strategic advantages of mine warfare? (Input all that apply, then push the ENTER button.)

A They can disrupt cargo-handling facilities.

B Mines are flexible in times of activation.

D The enemy is faced with a choice between confrontation of the minefield and acceptance of a blockade situation.

9 Autonomous underwater vehicle that can be programmed to search for mines

C AUV

10 A weapon designed to remain inert until an object, generally the target, approaches close enough to trigger it

B Passive weapon

11 What is the difference between the term "torpedoes" during the Civil War and the modern term "mines"?

D There is no difference. They refer to the same type of device.

12 Why did Confederate mines fail to stop the Union naval forces at the battle of Mobile Bay?

A Saltwater deterioration rendered the mines inoperable.

13 What was the primary purpose of the great offensive minefield that was laid by the Allies in the North Sea between northern Scotland and the Norwegian coast during World War I?

D To prevent German submarines from getting into the Atlantic and preying on Allied shipping.

14 To what mine classification method would bottom mines belong?

B Final planted position

15 What is the primary disadvantage in using moored mines?

D They may be cleared with relative ease by mechanical sweeping gear.

16 The most extensive Allied effort involving mines in World War I was the

B North Sea mine barrage between Scotland and Norway.

17 Offensive mining may

D All of the above are correct.

18 Acoustic mines are activated by

A propeller cavitation noise.

19 Mines are classified according to the method of

C planting, position, the mode of operation, the detonating or actuation.

20 Mine-hunting operations, an important aspect of mine countermeasures, are conducted by highly trained volunteer personnel who operate devices called

A Ordnance Locators

1 Lighter-than-air craft have not been used much since __________.

A WWII

2 Until the end of WWII, what type of armament would you find on naval aircraft? (Input all that apply, then push the ENTER button.)

A incendiaries

B machine guns

C torpedoes

3 An unmanned, self-propelled vehicle with a guidance system

A Guided missile

4 The most powerful Intercontinental Ballistic Missile has a range of over how many nautical miles?

C 5000

5 In what order would these defense systems be used? (Input the answers in the correct sequence, then push the ENTER button.)

D Interceptor aircraft

B SAMs of moderate range

C Shorter range missiles/antiaircraft guns

A Point defense systems

6 Designed to detect, intercept, or destroy incoming ballistic missile

C Antiballistic Missile (ABM)

7 A winged guided missile designed to deliver a conventional or nuclear warhead by flying at low altitudes to avoid detection by radar

B Cruise missile

8 What range is the AIM-120 AMRAAM?

C medium

9 What are the basic missile trajectories? (Input all that apply, then push the ENTER button.)

A Aerodynamic

C Ballistic

10 System which uses sound to guide a moving object, such as a torpedo

C Acoustic homing

11 Why are missile airframes made of aluminum alloys, magnesium or sheet steel?

C These are lightweight materials able to withstand extreme heat and pressure.

12 What limits cruise missiles to operate only below 70,000 feet?

C They need oxygen and there is generally too little of it higher than that.

13 How can the Harpoon missile be launched?

C Surface ship, submarine or aircraft

14 What air-to-air missile was developed jointly by the U.S. and several NATO nations as a follow-on to the older medium-range Sparrow missile?

D The AMRAAM

15 What is the purpose of launching Intercontinental Missiles vertically?

D It allows them to get through the densest part of the atmosphere as soon as possible.

16 Guided missiles have four basic parts. These are

C airframe, propulsion system, guidance system and warhead.

17 The major difference between ballistic and guided missiles is that

C guided missiles are guided until they hit the target.

18 The missile that is designed to home on and destroy enemy radar is the

A Harm

19 The five types of guidance systems for guided missiles are:

D gyro, inertial, homing, command, beam rider.

20 The U.S. Navy's ASROC and SUBROC are weapons designed for use against enemy

A submarines

1 What causes the projectile to spin in flight?

B rifling

2 A naval gun is 7" in diameter, what is its category?

B Intermediate

3 What type of ammunition do modern Navy guns use on active ships today?

D Semifixed

4 A rifled gun barrel which is designated a 5" gun measures:

C Five inches from land to land on opposite sides of the barrel

5 The explosive charge within a shell

D Burster charge

6 What are the general classes of projectiles?

(Input all that apply, then push the ENTER button.)

B Penetrating

D Fragmenting

E Special Purpose

7 The Navy offers surface fire assistance to which of the following? (Input all that apply, then push the ENTER button.)

A amphibious assault missions

B air rescue

C mine warfare activities

D sea rescue

8 Select the answer that corrects the statements.

During the Gulf War, Battleship Missouri and Battleship Wisconsin fired 1 ton, 16 inch projectiles nearly 20 miles inland against Iraqi fortifications. In one 60 hour period, USS Missouri fired more than one million pounds of ordinance in support of US Marine Corps and coalition ground forces.

D It is correct as is.

9 These projectiles are usually filled with magnesium and are used at night to light up the target.

D Star shell

10 A heavy antiaircraft barrage through which aircraft must fly to attack their target

C Flak

11 Which weapons system below was designed to be a ship's last-ditch weapon against an antiship cruise missile?

C The Phalanx close-in weapons system.

12 A gun with a bore diameter of 3 inches and a barrel 150 inches long would have what caliber designation?

D 50-caliber

13 Which of the following is NOT a limiting factor in determining the effective range of a gun?

D The guns arc of train.

14 When the recoil of a gun ejects the fired powder case and reloads the gun, what do we call it?

D Automatic

15 Most of today's naval guns are classified as dual purpose systems. What does this mean?

D They are designed to engage both surface and air targets.

16 In the proper sequence, the propellant train of a naval gun which extends from initiating stage to the main charge consists of the

C primer, booster, burster

17 The rate of fire and maximum range of the Oto Melara 76mm/62 gun is

B 85 rounds per minute, 17,800 yards.

18 The feature that prevents a naval gun from shooting into the ship's superstructure is called:

A cutout cams.

19 A group of gun mounts of the same size is referred to as a

C battery

20 The principal components of a full round of gun ammunition are a

A propelling charge (propellant) and a projectile (payload).