Mechanical Engineering MCQs

2075 MCQs  (Page 163 of 208)

Piezometer is used to measure_____________________?
A. Pressure in pipe, channels etc.
B. Atmospheric pressure
C. Very low pressures
D. Difference of pressure between two points
Euler’s dimensionless number relates the following__________________?
A. Inertial force and gravity
B. Viscous force and inertial force
C. Viscous force and buoyancy force
D. Pressure force and inertial force
Working principle of dead weight pressure gauge tester is based on_______________?
A. Pascal’s law
B. Dalton’s law of partial pressure
C. Newton’s law of viscosity .
D. Avogadro’s hypothesis
Which of the following manometer has highest sensitivity_________________?
A. U-tube with water
B. Inclined u-tube
C. U-tube with mercury
D. Micro-manometer with water
Center of pressure compared to e.g. is___________________?
A. Above it
B. Below it
C. At same point
D. Above or below depending on area of body
A body floats in stable equilibrium ____________________?
A. When its meatcentric height is zero
B. When the metancentre is above e.g.
C. When its e.g. is below it’s center of buoyancy
D. Metacentre has nothing to do with position of e.g. for determining stability