Related Questions

When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as
A Steady flow
B Turbulent flow
C Vortex flow
D Uniform flow
When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies
A linearly with radial distance
B as the square of the radial distance
C inversely as the square of the radial distance
D inversely as the radial distance
A disc is a spinning with an angular velocity $$\omega $$ rad/s about the axis of spin. The couple applied to the disc causing precession will be (where $$I$$ = Mass moment of inertia of the disc and $$\omega {\text{P}}$$  = Angular velocity of precession of the axis of spin)
A $$\frac{1}{2}I{\omega ^2}$$
B $$I{\omega ^2}$$
C $$\frac{1}{2}I\omega \omega {\text{P}}$$
D $$I\omega \omega {\text{P}}$$
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of
A A triangle
B A paraboloid
C An ellipse
D None of these
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the
A Square of the radial distance
B Radial distance linearly
C Inverse of the radial distance
D Elevation along vertical direction
In this type of drawing, vertical pipes may be revolved into the horizontal plane:
A Standard view
B Elevation view
C Transverse piping
D Developed piping
A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is
A zero
B one-fourth its value when cylinder was full
C one-half its value when cylinder was full
D cannot be predicted from the given data
The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is
A Directly proportional to (radius)2
B Inversely proportional to (radius)2
C Directly proportional to (radius)4
D Inversely proportional to (radius)4
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be
A More
B Less
C Same
D Data insufficient; can't be predicted
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
A $$\frac{{\text{H}}}{3}$$
B $$\frac{{\text{H}}}{2}$$
C $$\frac{{2{\text{H}}}}{3}$$
D $$\frac{{3{\text{H}}}}{4}$$

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