47) The size of a lathe can be specified by
Answer is:
Any one of the above
KPSC Water Resource Department Junior Engineer Mechanical Question Paper 2017 with Answer Key
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Answer is:
an open cycle
Answer is:
To relieve water hammer pressures in the penstock pipes
Explanation:
Surge tanks are used to control pressure change in the system due to changes in the water flow rate. In a small pipe system and even a large pipe system by controlling water flowrate we can control this problem and only some water hammering noise will come. But, in the turbine system (Hydroelectricity production unit) we cannot control the water hammering problem by simply controlling the water flowrate we need to provide a dedicated solution to this problem. The solution to this problem is nothing but the surge tank.
The Surge tank will provide extra water when demand is very high and will suck water when demand is very low this is the basic understanding of the surge tank.
