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This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
1. |
The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are P. Inlet pressure Q. Compressor rpm R. Delivery pressure S. Volumetric flow rate at inlet. |
A. | P and R |
B. | P, Q and R |
C. | P, Rand S |
D. | R and S |
Answer» C. P, Rand S | |
2. |
A mercury (specific gravity = 16) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 6), then for the same flow rate of water the new manometer reading will be __________ cms. |
A. | 8 |
B. | 84 |
C. | 17 |
D. | 42 |
Answer» D. 42 | |
3. |
Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be __________ ft. |
A. | 34 |
B. | 40 |
C. | 8 |
D. | 37 |
Answer» D. 37 | |