Question 51 : Maximum permissible temperature in a gas turbine is?
1. Fixed
2. Variable
3. Linearly increasing
4. Linearly decreasing
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Question 52 : The overall efficiency of a power plant is given by
1. 3600/NTO
2. 3600/AP
3. 3600/HHV
4. 3600/NPHR
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Question 53 : A coal containing high percentage of durian is called
1. splint
2. bright
3. boghead
4. non-banded
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Question 54 : Internal energy of combustion products is ______________ than that of reactants.
1. less
2. more or less (depends on state of fuel)
3. same
4. more
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Question 55 : Which of the following types of the fans has the highest cost?
1. centrifugal fans
2. axial fans
3. primary fans
4. gas recirculation fans
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Question 56 : Which of these is not a type of mechanical draft system for a furnace?
1. balanced draft
2. induced draft
3. forced draft
4. actuated draft
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Question 57 : Which of these terms defines the pressure difference in the furnace?
1. draught
2. duct
3. stack
4. chimney
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Question 58 : The maximum turbine flame temperature can be can be controlled by?
1. amount of oxygen extracted
2. amount of air supplied
3. amount of air extracted
4. none of the mentioned
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Question 59 : The maximum temperature achieved for given reactants is called?
1. Practical Flame Temperature
2. Critical Temperature
3. Theoretical Flame Temperature
4. None of the mentioned
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Question 60 : Coke devoid of volatile matter is called
1. caking coal
2. free-burning coal
3. agglomerate
4. coke
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