Chemical Engineering Mcqs

Submitted By: Ali Uppal

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  • _______________ is the most important element, which controls the physical properties of steel ?
  • The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the _______________ allowance ?
  • A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is ________________ W/m2 °C ?
  • In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be________________?
  • What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively ?

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