Chemical Engineering Basics The best criterion for analysing an economic investment is the Present value method Salvage value Rate of return criterion Future value method Present value method Salvage value Rate of return criterion Future value method ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Cold cracking in the heat affected zone of a high strength steel weld can take place because of the Martensite formation Sufficient hydrogen present in the welding arc Relatively high sulphur content in the base metal Retained austenite Martensite formation Sufficient hydrogen present in the welding arc Relatively high sulphur content in the base metal Retained austenite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Frost formation on the evaporator tubes in the domestic refrigerators Can be prevented by proper design Decreased compressor power Causes heat loss due to poor heat transfer Is immaterial Can be prevented by proper design Decreased compressor power Causes heat loss due to poor heat transfer Is immaterial 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 Decreases & increases Increases & decreases Increases & increases Decreases & decreases Decreases & increases Increases & decreases Increases & increases Decreases & decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Boiler draught of 10 mm water column is equivalent to 1 kgf/mm² 10 kgf/m² 1 kgf/m² 10 kgf/mm² 1 kgf/mm² 10 kgf/m² 1 kgf/m² 10 kgf/mm² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Shaft/rotor speed is most accurately measured by a Strobometer Frequency counter Speedometer Tachometer Strobometer Frequency counter Speedometer Tachometer ANSWER DOWNLOAD EXAMIANS APP
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