Explore topic-wise MCQs in Chemistry.

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