Question: Cd is always __________ Cc.
[A].greater than
less than
equal to
either more or less than
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Fluid Mechanics
Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficientCc = co-efficient of contractionCv = co-efficient of velocity)
Question: Cd, Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficientCc = co-efficient of contractionCv = co-efficient of velocity)
[A].Cd = Cc/Cv
Cd = Cc.Cv
Cd = Cv/cc
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
For an unstable equilibrium of a floating body (where, M = metacentre.)
Question: For an unstable equilibrium of a floating body (where, M = metacentre.)
[A].M is above G
M is below G
M & G coincide
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively).
Question: For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively).
[A].G is above B
B is above G
B & coincide
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Pascal’s law is valid, only when the fluid is
Question: Pascal’s law is valid, only when the fluid is
[A].frictionless and at rest.
at rest.
at rest and when the frictionless fluid is in motion.
none of these.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
If in a flow field, between any two points, then the flow must be
Question: If in a flow field, between any two points, then the flow must be
[A].steady, incompressible, irrotational.
steady, compressible, irrotational.
steady, compressible and along a streamline.
unsteady, incompressible, irrotational.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Euler’s equation of motion is a statement expressing
Question: Euler’s equation of motion is a statement expressing
[A].conservation of mass.
conservation of energy.
Newton’s first law of motion.
Newton’s second law of motion.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A streamline is a line in flow field,
Question: A streamline is a line in flow field,
[A].that is traced by all the fluid particles passing through a given point.
along which a fluid particle travels.
such that at every point on it, the velocity is tangential to it.
none of these.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
An isentropic process is the one, in which
Question: An isentropic process is the one, in which
[A].pv = constant
pvr = constant
pvr = constant, and process is reversible
none of these
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A Newtonion fluid is that
Question: A Newtonion fluid is that
[A].which follows Newton’s law of motion.
which needs a minimum shear, before it starts deforming.
for which shear & deformation are related as
none of these.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.