Chemical Engineering - Chemical Engineering Basics
Exercise :: Chemical Engineering Basics - Section 9
21. |
A fluid is termed as the Newtonion fluid, when the shear stress is __________ the velocity gradient. |
A. |
independent of | B. |
inversely proportional to | C. |
directly proportional to | D. |
none of these |
Answer: Option C
Explanation:
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22. |
Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the |
A. |
length of the pipe. | B. |
diameter of the pipe. | C. |
density of the fluid. | D. |
velocity of the fluid. |
Answer: Option A
Explanation:
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23. |
When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively |
A. |
decreases & increases. | B. |
increases & increases. | C. |
increases & decreases. | D. |
decreases & decreases. |
Answer: Option A
Explanation:
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24. |
Limestone addition in the blast furnace is done to flux __________ present in the raw materials. |
Answer: Option A
Explanation:
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25. |
The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel. |
A. |
carbon | B. |
manganese | C. |
both a & b | D. |
neither 'a' nor 'b' |
Answer: Option A
Explanation:
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