Chemical Engineering Basics The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void. Greater than Either A, B or C; depends on the size of atom Less than Equal to Greater than Either A, B or C; depends on the size of atom Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The process of removal of scale formed during hot rolling of steel is termed as Shot blasting Skimming Descaling Pickling Shot blasting Skimming Descaling Pickling 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 Scale formation rate on economiser tubes increases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water Heat transfer efficiency of economiser increases due to picking up high heat from the flue gases Scale formation rate on economiser tubes increases It results in corrosion due to the condensation on the flue gas side of the economiser tubes due to handling of low temperature water Economiser tube life increases due to handling of low temperature water ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the joint produced by __________ has the lowest strength. Rivetting Welding Brazing Soldering Rivetting Welding Brazing Soldering ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively Increases & increases Decreases & decreases Increases & decreases Decreases & increases Increases & increases Decreases & decreases Increases & decreases Decreases & increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure. Face centred cubic (fcc) Simple cubic Hexagonal close, packed (hcp) Body centred cubic (bcc) Face centred cubic (fcc) Simple cubic Hexagonal close, packed (hcp) Body centred cubic (bcc) ANSWER DOWNLOAD EXAMIANS APP
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