Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 8
| 31. |
The normal stress is the same in all directions at a point in a fluid, only when the fluid |
| A. |
is at rest & has zero viscosity. | | B. |
is frictionless. | | C. |
fluid layer has no motion relative to an adjacent layer of fluid. | | D. |
is incompressible & frictionless. |
Answer: Option D
Explanation:
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| 32. |
A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is |
Answer: Option A
Explanation:
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| 33. |
In chemical dehumidification of air |
| A. |
both specific humidity & dry bulb temperature increases. | | B. |
both specific humidity & dry bulb temperature decreases. | | C. |
specific humidity decreases & dry bulb temperature increases. | | D. |
specific humidity increases & dry bulb temperature decreases. |
Answer: Option C
Explanation:
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| 34. |
What is the pH of distilled water ? |
Answer: Option C
Explanation:
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| 35. |
Pick out the correct statement. |
| A. |
Hot worked materials are subjected to annealing to remove internal stresses. | | B. |
Annealing of steel hardens it slightly | | C. |
Normalising of a material induces stresses. | | D. |
Tempering of a material improves ductility & toughness but reducess hardness & brittlenes. |
Answer: Option D
Explanation:
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