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 Oxygen cylinders used for autogenous (cutting/welding) purposes are Heat treated before use Made by sand casting Seamless & made of steel Welded steel cylinders Heat treated before use Made by sand casting Seamless & made of steel Welded steel cylinders ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Laser welding is widely employed in the __________ industries. Electronic Structural Process Heavy Electronic Structural Process Heavy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to Troostite Sorbite Martensite Bainite Troostite Sorbite Martensite Bainite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of 0.044444444444444 0.042361111111111 0.043055555555556 0.084027777777778 0.044444444444444 0.042361111111111 0.043055555555556 0.084027777777778 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics For hardening high alloy steel, it is to be heated slowly and uniformly to avoid Scale formation Warpage Segregation Local hardening Scale formation Warpage Segregation Local hardening ANSWER DOWNLOAD EXAMIANS APP
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