Hydraulics And Fluid Mechanics In Me - Study Mode
[#191] Bulk modulus of a fluid __________ as the pressure increases.
Correct Answer
(C) Increases
[#192] The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.
Correct Answer
(C) More than
[#193] When the pressure intensity at a point is more than the local atmospheric pressure, then the difference of these two pressures is called
Correct Answer
(C) Positive gauge pressure
[#194] Working principle of dead weight pressure gauge tester is based on
Correct Answer
(A) Pascal's law
[#195] The liquid used in manometers should have
Correct Answer
(B) High density
Explanation
Solution: Manometers are devices used for measuring pressure, typically in fluids. The liquid used in manometers should have high density . This is because higher density liquids are less affected by small changes in pressure, providing more accurate measurements. Option A: Low density Low density liquids would be more sensitive to pressure changes, which could lead to less accurate readings. Option C: Low surface tension Surface tension is not a critical factor in the selection of the liquid for a manometer. It doesn't directly impact the accuracy of pressure measurements. Option D: High surface tension High surface tension liquids tend to form menisci in narrow tubes, which could affect the accuracy of pressure measurements in a manometer. Therefore, the correct answer is option B: High density .