Related Questions

In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
A $$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
B $$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$
C $$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
D $$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
In case of coutte flow, the fluid flow is between two large flat parallel plates with
A Top plate moving and the bottom plate fixed
B Bottom plate moving and the top plate fixed
C Both the plates fixed
D Both the plates moving
The ratio of maximum to average velocity in case of streamline flow between parallel plates is
A 1
B 1.5
C 2
D 2.5
The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is
A constant over the cross section
B parabolic distribution across the section
C zero at the mid plane and varies linearly with distance from mid plane
D zero at plates and increases linearly to midpoint
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.
A Single riveted
B Double riveted
C Multi riveted
D None of these
When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as
A Lap joint
B Butt joint
C Single riveted single cover butt joint
D Double riveted double cover butt joint
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.
A Single riveted
B Double riveted
C Both (A) and (B)
D None of these
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)
A 0.423 D
B 0.577 D
C 0.223 D
D 0.707 D
For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance 'd' measured from the wall of the pipe and the friction velocity 'v', and it follows a __________ relationship.
A Logarithmic
B Linear
C Hyperbolic
D Parabolic
The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe.
A Hyperbola
B Parabola
C Semi-circle
D Semi-ellipse

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