Related Questions

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 revolved about its vertical axis at a constant angular velocity, the pressure
A Varies as the square of the radial distance
B Increases linearly as its radial distance
C Increases as the square of the radial distance
D Decreases as the square of the radial distance
The fluid velocity varies as the square of the cylindrical pipe diameter, in case of steady state laminar flow at constant pressure drop, for __________ fluid.
A Newtonion
B Dilatant
C Pseudo-plastic
D Non-Newtonion
The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid.
A Dilatant
B Pseudo-plastic
C Bingham plastic
D Newtonion
The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.
A Newtonion
B Pseudoplastic
C Dilatent
D Bingham plastic
When a body of mass moment of inertia '$$I$$' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is
A $$I\omega $$
B $$I{\omega ^2}$$
C $$0.5I\omega $$
D $$0.5I{\omega ^2}$$
A point B on a rigid link AB moves with respect to A with angular velocity $$\omega $$ rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)
A vBA × AB
B $$\frac{{{\text{vBA}}}}{{{\text{AB}}}}$$
C v2BA
D $$\frac{{{{\text{v}}^2}{\text{BA}}}}{{{\text{AB}}}}$$
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is
A $$\frac{{\pi {\text{N}}}}{{60}}$$
B $$\frac{{\pi {\text{N}}}}{{180}}$$
C $$\frac{{2\pi {\text{N}}}}{{60}}$$
D $$\frac{{2\pi {\text{N}}}}{{180}}$$
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is
A v
B 2v
C 4v
D 8v

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