Chemical Engineering Basics Function of feed check valve in a boiler is to Regulate the water flow to boiler Facilitate circulation of high pressure feed water Check the water level in the boiler drum Prevent the back flow of water Regulate the water flow to boiler Facilitate circulation of high pressure feed water Check the water level in the boiler drum Prevent the back flow of water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Oxyacetylene reducing flame is used while carrying out welding on Alloy steel Grey cast iron High carbon steel Mild steel Alloy steel Grey cast iron High carbon steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The phenomenon of strain-ageing is generally experienced with Low carbon steel Cast iron High carbon steel High manganese steel Low carbon steel Cast iron High carbon steel High manganese steel ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics In radiative heat transfer, a grey surface is the one, which has Emissivity independent of wavelength Zero reflectivity Equal brightness in all directions Grey appearance to the eye Emissivity independent of wavelength Zero reflectivity Equal brightness in all directions Grey appearance to the eye ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ? Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Economiser tube life increases due to handling of low temperature water It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Scale formation rate on economiser tubes increases Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Economiser tube life increases due to handling of low temperature water It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Scale formation rate on economiser tubes increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics A jig is used while __________ a hole. Boring Drilling Counter boring Enlarging Boring Drilling Counter boring Enlarging ANSWER DOWNLOAD EXAMIANS APP
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