A) It turns into liquid B) It expands C) It shatters D) It melts
A) Cooling the projectile B) Destroying the geometry of the metal jet C) Creating a magnetic field D) Absorbing the sound waves
A) The 1960s B) The 1990s C) The 1980s D) The 1940s
A) Disrupting and spreading kinetic energy of projectiles B) Increasing vehicle speed C) Reducing the weight of the engine D) Improving radio reception
A) Steel and ceramics B) Rubber and copper C) Iron and glass D) Aluminum and plastic
A) The 1960s B) The 1980s C) The 1940s D) The 1920s
A) Non-explosive reactive armour B) Negative energy reaction assembly C) Non-elemental reactive alloy D) New energy resistant armour
A) Explosive compound B) High density lead C) Pressurized gas D) Low density interlayer material
A) It swells and moves the plates B) It turns to vapor C) It absorbs the entire projectile D) It hardens instantly
A) Steel B) Uranium C) Ceramic D) Glass
A) Rubber B) Aluminium C) Copper D) Lead
A) A type of high hardness steel B) A uranium alloy C) A fibreglass reinforced polymer D) A reactive explosive
A) Inside the engine room B) Outside the hull C) Under the keel D) On the radar mast
A) Maintain watertight integrity B) Store ammunition C) Improve steering D) Increase speed
A) To increase deck space B) To save fuel C) To assist with docking D) To improve protection
A) It cools the hull B) It adds buoyancy C) It stabilizes the cannons D) It hides the ship from radar
A) Hangar deck B) Waterline level C) Flight deck D) The rudder
A) Solid granite B) Concrete blocks C) Nanomaterials D) Thick lead plating
A) Wooden shielding. B) Steel chains. C) Aramid composite kevlar bandages. D) Thick rubber mats.
A) Carbon fiber. B) Modern titanium alloys. C) Wrought iron. D) Polycarbonate.
A) Enemy missiles. B) Extreme gravity. C) Micrometeoroids. D) Radio interference.
A) A-10 Thunderbolt II. B) Space Shuttle. C) Cessna 172. D) Boeing 747.
A) The engine becomes silent. B) Fuel consumption decreases. C) Mobility is restricted. D) The vehicle becomes invisible.
A) High specific strength. B) It is the cheapest metal. C) It is easy to weld. D) It is naturally bullet-repellent.
A) It is mixed with plastic. B) It contains high levels of lead. C) Heat treatment is difficult or impossible. D) It is cooled too quickly.
A) Submarines B) Aircraft carriers C) Merchant ships D) Main battle tanks
A) 7% B) 25% C) 43% D) 50%
A) 7% B) 43% C) 10% D) 50%
A) The steel backing plate B) Hard granite particles C) The bitumen layer D) The wooden form
A) Aluminium oxynitride B) Limestone C) Granite D) Polyurethane
A) Bitumen B) Steel C) Granite D) Polycarbonate
A) 0.5 inches B) 2 inches C) 70–75 mm D) 100–120 mm
A) Polyvinyl butyral B) Granite C) Bitumen D) Limestone
A) 200 mm B) 70–75 mm C) 50 mm D) 100–120 mm |