Engineering Physics I Mock Test 10

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Question 1 of 10

1. What would be the effect of a nuclear holocaust?

Nuclear Summer

Nuclear Spring

Nuclear Autumn

Nuclear Winter

Question 1 of 10

Question 2 of 10

2. Which process happens inside a star?

Nuclear fusion

Electron Excitation

Nuclear fission

Diffusion

Question 2 of 10

Question 3 of 10

3. What would be the most probable velocity for one Oxygen molecule at 300 K?

798 m/s

821 m/s

612 m/s

714 m/s

Question 3 of 10

Question 4 of 10

4. Nova are thought to occur in a system, X, in which a white-dwarf star orbits a red giant star. What is X?

Triple System

Compact system

Binary system

Congenial system

Question 4 of 10

Question 5 of 10

5. At high temperatures, which material is the best choice to be used as coolant in a nuclear reactor?

Heavy water

Molten Carbon

Molten Potassium

Water

Question 5 of 10

Question 6 of 10

6. The moderator commonly used is ___________

Graphite

Copper

Lead

Diamond

Question 6 of 10

Question 7 of 10

7. If the number of fissions are 2.375 X 10²⁴, what is the mass of uranium 235 isotope used?

879.32 g

926.65 g

789.23 g

980.74 g

Question 7 of 10

Question 8 of 10

8. The Maxwell-Boltzmann law is given by the expression n_i = ________

\(\frac{g}{e^{\alpha+\beta E}-1} \)

\(\frac{g}{e^{\alpha+\beta E}} \)

\(\frac{g}{e^{\alpha+\beta E}+1} \)

\(\frac{g}{e^{\alpha+\beta E}+k} \)

Question 8 of 10

Question 9 of 10

9. Leptons and quarks are called the survivors.

True

False

Question 9 of 10

Question 10 of 10

10. The average energy of one electron silver is 3.306 eV. What is the fermi-energy of Silver at 0 K?

4.12 eV

3.78 eV

2.32 eV

5.51 eV

Question 10 of 10