Question 1 : Which of these is the most promising power generation system?
1. magnetohydrodynamic
2. thermoelectric
3. hydrogen
4. fuel cell
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Question 2 : In an open cycle MHD-steam power plant, the temperature at the entrance of MHD duct is (in K)
1. 2500-3000
2. 2000-2500
3. 1500-2000
4. 2250
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Question 3 : Where is the input of the MHD duct heated in a closed cycle MHD-steam power plant?
1. blast furnace
2. nuclear reactor
3. reverabatory furnace
4. combustion chamber
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Question 4 : In closed cycle MHD-steam power plant, which of the following gas is seeded in the MHD duct?
1. helium
2. xenon
3. sodium vapour
4. chlorine
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Question 5 : Which of these is not a merit of tidal power generation?
1. free from problems of ecology balance
2. everlasting
3. no extra submerging of land is required
4. uneven operation
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Question 6 : The air at the entrance of MHD duct is seeded with potasium upto
1. 7%
2. 5%
3. 3%
4. 1%
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Question 7 : Which is the only fuel better than coal for use?
1. natural gas
2. char
3. kerosene
4. benzene
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Question 8 : Which of these is not a property of MHD power generation?
1. has no moving part, so is reliable
2. overall generation cost is less
3. closed cycle has almost no pollution
4. conversion is about 80-90%
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Question 9 : Which of these is a non-conventional type of power generation without prime movers?
1. hydro power
2. thermal
3. nuclear
4. thermoelectric
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Question 10 : Which of these materials not used for MHD duct walls?
1. magnesium oxide
2. strontium zirconate
3. hafnia
4. manganese zirconate
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