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Question Set 60
1. Why pistons are usually dished at top ? Ans: Pistons are usually hollowed at top to (i) provide greater space for…
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Question Set 59
1. Maximum combustion temperature in gas turbines is of the order of 1100 to 10°C whereas same is around 00°C in…
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Question Set 58
1.Which two elements in feed water can cause corrosion of tubes and plates in boiler? Ans: Acid and oxygen in feed…
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Question Set 57
1. When maximum discharge is obtained in nozzle ? Ans: At the critical pressure ratio. 2. Under what condition the work done in…
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Question Set 56
1. What is the difference between scavenging and supercharging ? Ans: Scavenging is process of flushing out burnt gases from engine cylinder…
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Question Set 55
Question No. 1 What maybe the possible causes for the safety trip to trip at normal speed? Answer: 1. Excessive vibration.…
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Question Set 54
Question No. 1 What is combined-cycle cogeneration? Answer: A combined cycle using a gas turbine or diesel, usually driving a…
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Question Set 53
Question No. 1 What factors are responsible for turbine-blade failures? Answer: In the high pressure cylinder, the turbine blades are…
Question Answers 4 min read
Question Set 52
Question No. 1 What are the losses in steam turbines? Answer: 1. Residual Velocity Loss – This is equal to the absolute…
Question Answers 6 min read
Question Set 51
Question No. 1 Usually it has been found that SCC attack takes place particularly at key-ways of shrunk-on-disc rotors of…
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Question Set 50
Question No. 1 In which turbine is velocity compounding utilized? Answer: In the Curtis turbine. Question No. 2 In which…
Question Answers 2 min read
Question Set 49
Question No. 1 How would you stop air from leaking into a condenser? Answer: First, find the leak by passing…