⚗️ Chemical Engineering Solved MCQs with Answers

Practice 1920 approved ⚗️ Chemical Engineering questions with verified answers from the 🛠️ Engineering Essentials subject for Pakistan exams.

1920 solved MCQs

Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.Answer: Fast breeder Which of the following may not need a control rod ?Answer: None of these One 'amu' is equivalent toAnswer: 931 Mev Commercial power generation from fusion reactor is not yet possible, becauseAnswer: It is difficult to control fusion reaction. Spent fuel from the nuclear thermal reactor containsAnswer: All (a), (b) and (c). A boiling water reactor is the one, in which theAnswer: Coolant water is allowed to boil in the core of the reactor. Which is used as a coolant in nuclear reactor due to its high capture cross-section ?Answer: H₂ Moderating material used in a thermal-reactor should be aAnswer: Poor absorber of neutrons. Ordinary water is not used as a moderator because, itAnswer: Absorbs neutrons. The atomic number of a radioactive element is not changed, when it emits __________ rays.Answer: γ Fission of U-235 on slow neutron bombardment can be represented byAnswer: 92U235 + 0n1 56Ba143 + 36Kr90 + 3 0n1 + Q (energy) A nuclear reactor can't be used forAnswer: None of these Which of the following is a moderating material used in nuclear reactor ?Answer: Graphite. The atomic number of an element is equal to the number of __________ present in its atom.Answer: Either (b) or (c) Which of the following is not, a fertile material ?Answer: U-233 Which one is the radioactive isotope of hydrogen ?Answer: Tritium A homogeneous reactor is the one, in which theAnswer: The fuel and the moderator is mixed to form a homogeneous material. Hydrogen has __________ isotopes.Answer: Three MeV is the unit ofAnswer: Energy Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.Answer: 2200 Energy equivlant to one atomic mass unit (amu) is __________ MeV.Answer: 931 "Critical mass" is the minimum mass of nuclear fissile material required for theAnswer: Sustainment of chain reaction. The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.Answer: Electromagnetic Fast breeder Test Reactor (FBTR) is located atAnswer: Kalpakkam (near Madras). Tarapur atomic power stationAnswer: All (a), (b) and (c). In a nuclear explosion, the energy is released primarily in the form of __________energy-Answer: Kinetic The largest stable nucleus isAnswer: U-235 Hydrogen bomb employs the nuclear fusion ofAnswer: Deuterium Sodium melts (at atmospheric pressure) at a temperature of __________ °C.Answer: 98 The ratio of volume of an atom to that of its nucleus isAnswer: 10 12