Discussion
Home ‣ Chemical Engineering ‣ Nuclear Power Engineering Comments
- Question
Isotopes of an element have different
Options- A. mass number
- B. electronic configuration
- C. nuclear charge
- D. chemical properties
- Correct Answer
- mass number
- 1. Pick out the wrong statement.
Options- A. Isotopes have the same number of protons & electrons, but different number of neutrons.
- B. Hydrogen has two isotopes.
- C. In ordinary hydrogen, 1H1 and 1H2 are present in the ratio 6400:1.
- D. none of these. Discuss
- 2. Uranium percentage in monazite sand is about
Options- A. 0.01
- B. 0.25
- C. 1.2
- D. 7 Discuss
- 3. In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous
Options- A. uranium oxide
- B. uranium hexaflouride
- C. uranium carbide
- D. uranium sulphate Discuss
- 4. The critical mass of a fissionable material can be reduced by
Options- A. heating it.
- B. cooling it.
- C. surrounding it by neutron reflecting material.
- D. surrounding it by neutron absorbing material. Discuss
- 5. Radioactive decay of a material involves a __________ order reaction.
Options- A. third
- B. second
- C. first
- D. zero Discuss
- 6. A control rod
Options- A. should have small absorption cross-section.
- B. is generally made of boron, hafnium or cadmium.
- C. should have large absorption cross-section.
- D. both (b) and (c). Discuss
- 7. Out of the following, nucleus of __________ atom contains the largest number of neutrons.
Options- A. U-235
- B. U-238
- C. U-239
- D. Pu-239 Discuss
- 8. ?-rays emission in radioactive disintegration is always accompanied by the emission of
Options- A. ?-rays
- B. ?-rays
- C. neutrons
- D. none of these Discuss
- 9. Atoms of U-238 and U-235 differ in structure by three
Options- A. electrons and three protons
- B. protons
- C. neutrons
- D. electrons Discuss
- 10. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
Options- A. 159
- B. 1837
- C. 2537
- D. 10000 Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: Hydrogen has two isotopes.
Correct Answer: 0.25
Correct Answer: uranium hexaflouride
Correct Answer: surrounding it by neutron reflecting material.
Correct Answer: first
Correct Answer: both (b) and (c).
Correct Answer: U-239
Correct Answer: ?-rays
Correct Answer: neutrons
Correct Answer: 1837
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.