Chemical Engineering Basics MCQs
Practice free Chemical Engineering Basics multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1344 questions — no login required.
Question 208hard
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).
Question 209hard
Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.
Question 210hard
Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
Advertisement
Question 211medium
Tumbling is the process of improving the __________ of the materials/parts.
Question 212hard
Natural water contains approximately __________ percent of heavy water.
Question 213hard
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.
Advertisement
Question 214medium
Isotropic materials have the same __________ in all the directions.
Question 215medium
Insulation of liquid surface can be achieved by __________ on top of its surface.
Question 216hard
The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the __________ point of the material.