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.Management Sciences
Category: Chemical Engineering Basics
A solar cell converts the sunlight directly into ______________ energy?
A. Thermal
B. Electrical
C. Mechanical
D. Chemical
Which of the following is not categorised as the ore agglomeration process ?
A. Nodulising
B. Pelletising
C. Balling
D. Briquetting
Corrosion is____________________?
A. A physical phenomenon
B. A chemical phenomenon
C. Same as erosion
D. An uncontrollable phenomenon
Alloy powder manufactured by the following process have spherical shapes ?
A. Electrochemical deposition
B. Gaseous reduction
C. Atomisation
D. Mechanical attrition
The leaching solvent used in Baeyer’s process for the purification of bauxite is___________________?
A. Ammonium hydroxide
B. Sodium carbonate
C. Sodium hydroxide
D. Ammonium carbonate
Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore ?
A. High fusibility & fluidity
B. High thermal conductivity
C. Low density
D. High chemical activity
What is the range of tempering temperature (°C) for most of the materials ?
A. 75-100
B. 200-300
C. 350-450
D. 500-600
Increasing the carbon content of steel_________________?
A. Reduces the upper shelf energy
B. Increasing the ductility transition temperature
C. Decreases brittleness
D. Decreases hardness
Insulation of liquid surface can be achieved by _____________ on top of its surface?
A. Floating hollow polypropylene spheres
B. Spraying alumina powder
C. Putting cement
D. None of these
Fatigue resistance of a material is measured by the _____________________?
A. Elastic limit
B. Ultimate tensile strength
C. Young’s modulus
D. Endurance limit
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