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- Question
Which one is radioactive in nature?
Options- A. Helium
- B. Deuterium
- C. Heavy hydrogen
- D. Tritium
- Correct Answer
- Tritium
- 1. Commercial power generation from fusion reactor is not yet possible, because
Options- A. it is difficult to control nuclear fusion reaction.
- B. the fuel required (i.e., deuterium & tritium) is scarce.
- C. it is difficult to initiate fusion reaction.
- D. quantity of fuel required for initiating fusion reaction is prohibitively high. Discuss
- 2. Molten sodium is used as a coolant in a fast breeder reactor, because of its
Options- A. excellent moderating properties.
- B. neutron breeding capability.
- C. faster heat removal capability from the core.
- D. capability to increase the reaction rate in the core. Discuss
- 3. For the gaseous phase reaction, N2 + O2⇌2NO, ?H = + 80 kJ/kg. mole; the decomposition of NO is favoured by
Options- A. increasing the concentration of N2.
- B. decrease in temperature.
- C. increase in pressure.
- D. decrease in pressure. Discuss
- 4. A balance sheet for a chemical plant shows its financial condition at any given date. It does not contain the __________ of the plant.
Options- A. current asset
- B. current liability
- C. long term debt
- D. profit Discuss
- 5. Continuous measurement of moisture in paper is done by
Options- A. sling psychrometer.
- B. hair-hygrometer.
- C. weighing.
- D. high resistance Wheatstone's bridge circuit. Discuss
- 6. Bhabha Atomic Research Centre (BARC) located at Trombay (near Bombay) has
Options- A. five operating research reactors (namely Apsara, Cirus Zerelina, Purnima and Dhurva).
- B. a 420 MW nuclear power plant.
- C. a very large capacity (100 tons/yr) heavy water plant.
- D. all (a), (b) and (c). Discuss
- 7. Scaling of furnace stock is reduced by __________ in flue gas.
Options- A. CO
- B. H2
- C. high CO/CO2
- D. all (a), (b) & (c) Discuss
- 8. Pick out the wrong statement:
Options- A. Clausius-Clapeyron equation relates the latent heat of vaporisation to the slope of the vapor pressure curve.
- B. At the boiling point of liquid at the prevailing total pressure, saturated absolute humidity is infinite.
- C. Percentage saturation and relative saturation are numerically equal for an unsaturated vapor gas mixture.
- D. Clapeyron equation is given by,
; where, P = vapor pressure, T = absolute temperature, ? = latent heat of vaporisation, VG and VL = volumes of gas and liquid respectively.
Discuss
- 9. Pick out the wrong statement.
Options- A. Rivetting provides a permanent fastening method.
- B. The joint made by overlapping of one plate over the other, and then rivetting the two plates together with two rows of rivets is called 'double rivetted butt joint'.
- C. Shank diameter of the rivets should be less than the size of the hole drilled in the plate for rivetting.
- D. The efficiency of a rivetted joint is the ratio of the strength of the rivetted joint to the strength of the solid plate. Discuss
- 10. Avogadro's number is equal to
Options- A. 6.023 x 1023 molecules/kg.mole.
- B. 6.023 x 1023 molecules/gm.mole.
- C. 6.023 x 1016 molecules/kg.mole.
- D. 6.023 x 1026 molecules/gm.mole. Discuss
More questions
Correct Answer: it is difficult to control nuclear fusion reaction.
Correct Answer: faster heat removal capability from the core.
Correct Answer: decrease in temperature.
Correct Answer: profit
Correct Answer: high resistance Wheatstone's bridge circuit.
Correct Answer: five operating research reactors (namely Apsara, Cirus Zerelina, Purnima and Dhurva).
Correct Answer: all (a), (b) & (c)
Correct Answer: Percentage saturation and relative saturation are numerically equal for an unsaturated vapor gas mixture.
Correct Answer: The joint made by overlapping of one plate over the other, and then rivetting the two plates together with two rows of rivets is called 'double rivetted butt joint'.
Correct Answer: 6.023 x 1023 molecules/gm.mole.
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