The most difficult weaponry riddles A list of weaponry related questions that are most often answered incorrectly World War II quiz What is the main reason to use nuclear reactor on a submarine?It needs no oxygen. Nuclear reactor requires no oxygen for combustion and emits no exhaust gas. It gives the submarine the ability to operate submerged at high speeds, for unlimited periods, dependent only on the endurance of its crew. Nuclear power revolutionized the submarine, finally making it a true "underwater" vessel, rather than a "submersible" craft.very hard 33% it needs no oxygenit needs no oxygen33%it needs no frequent refuellingit needs no frequent refuelling36%it is silentit is silent27%it is smallit is small2%Created by: Riho Ishii. Statistics based on 3084 answers in 2 languages »nuclear energy riddles » The first rocket planes ever to be mass-produced were the Messerschmitt Me 163 in 1944. Which other country used rocket planes during WW2?Japan. The MXY-7 Navy Suicide Attacker Ohka (pictured) was a manned flying bomb that was usually carried underneath a Mitsubishi G4M2e "Betty" Model 24J bomber to within range of its target; on release, the pilot would first glide towards the target and when close enough he would fire the Ohka's three solid-fuel rockets. The Japanese produced approximately 850 Ohkas, and seven US ships were damaged or sunk by them throughout the war.hard 51% U.S.U.S.18%United KingdomUnited Kingdom13%Soviet UnionSoviet Union16%JapanJapan51%Created by: Monica Stiller. Statistics based on 10759 answers in 2 languages »planes riddles » How successful were the human torpedoes, developed by the Japanese during the WW2?It was a disappointment. Kaitens had a very limited diving depth, which in turn limited the diving depth of the host submarine. This is one of several factors blamed for the very poor survival rate of submarines armed with kaitens: eight submarines being lost for the sinking of only two enemy ships and damaging several others.hard 53% it was a great success and the main threat for US Navyit was a great success and the main threat for US Navy11%it was a success, over 50 ships were sunkit was a success, over 50 ships were sunk17%it was a disappointmentit was a disappointment53%it was never usedit was never used17%Created by: globalquiz.org. Statistics based on 13451 answers in 2 languages »navy riddles » Which country mass-produced speedboats packed with explosives as a weapon during WW2?Japan. The Shinyo ("Sea Quake") were Japanese suicide boats, driven by one man, to speeds of around 30 kn (56 km/h; 35 mph). Around 6,200 Shinyo were produced for the Imperial Japanese Navy and stored on the coast of Japan for the ultimate defense against the invasion of the Home Islands. Only a small number of them were used in action in the Phillipines and Okinawa, sinking some gunboats and auxiliary ships.average 68% GermanyGermany14%RussiaRussia7%JapanJapan68%ItalyItaly9%Created by: Cleo. Statistics based on 18401 answers in 2 languages »history of Japan riddles » The term "kamikaze" usually refers to the plane strikes. What devices were also used by Japan for intentional suicide attacks during WW2?Torpedoes. In the final stages of World War II, the Japanese used Kaitens, manned torpedoes. Early designs allowed the pilot to escape after the final acceleration toward the target, but provision was dropped later. The kaiten could operate for several hours, and it was able to attack several times in case of a miss.easy 70% balloonsballoons9%torpedoestorpedoes70%hovercrafthovercraft12%helicoptershelicopters6%Created by: globalquiz.org. Statistics based on 14131 answers in 2 languages »weapons riddles » Play World War II quiz and see all the questions.