22. The unit of the viscosity is
A. kg sec/m2
B. Newton sec per m2
C. Newton-sec2/m3
D. m2 per sec.
23. Unit of kinematic viscosity is
A. m2/sec
B. Newton sec/m2
C. Newton sec/m3
D. Kg sec/m2.
24. Barometres are used to measure
A. pressure in water channels, pipes etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure
25. Piezometers are used to measure
A. pressure in water channels, pipes etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure.
26. Manometers are used to measure
A. pressure in water channels, pipes etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure.
27. Differential manometers are used to measure
A. pressure in water channels, pipes, etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure.
28. To measure very low pressure, we use
A. barometers
B. piezometers
C. manometers
D. differential manometers.
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