A Admin • 802.91K Points Coach Report Q. What is the major challenge in controlling nuclear fusion reactions? (A) Lack of uranium fuel (B) Containment of high temperature plasma (C) Excessive radiation leakage (D) Low energy output
A Admin • 802.91K Points Coach Report Q. Which of the following isotopes is not radioactive? (A) Uranium-235 (B) Carbon-12 (C) Radium-226 (D) Plutonium-239
A Admin • 802.91K Points Coach Report Q. What is the typical temperature required for nuclear fusion to occur? (A) 1,000°C (B) 10,000°C (C) 10 million°C (D) 100°C
A Admin • 802.91K Points Coach Report Q. Which isotope is used in medical imaging and cancer treatment? (A) Iodine-131 (B) Carbon-14 (C) Uranium-238 (D) Thorium-232
A Admin • 802.91K Points Coach Report Q. What type of decay converts a proton into a neutron? (A) Beta-plus decay (B) Beta-minus decay (C) Alpha decay (D) Gamma emission
A Admin • 802.91K Points Coach Report Q. Which nuclear disaster occurred in 1986? (A) Three Mile Island (B) Chernobyl (C) Fukushima (D) Tokaimura
A Admin • 802.91K Points Coach Report Q. What happens in a chain reaction? (A) Only one fission occurs (B) Each fission causes further fissions (C) Energy is absorbed continuously (D) No energy is released
A Admin • 802.91K Points Coach Report Q. Which of the following protects the reactor from radiation leakage? (A) Moderator (B) Coolant (C) Concrete shield (D) Control rods
A Admin • 802.91K Points Coach Report Q. Which unit measures the biological effect of radiation? (A) Gray (B) Sievert (C) Joule (D) Coulomb
A Admin • 802.91K Points Coach Report Q. What is the SI unit of radioactive activity? (A) Curie (B) Becquerel (C) Rutherford (D) Sievert