$($a$)$ Differentiate between

$($i$)$ Centrifugal pump and Reciprocating pump.

$($ii$)$ Impulse Turbine and Reactors turbine.

$($b$)$ Write the limitations of Bernoulli's equation. A compound pipe is made up of two pipes

$450$ m long and diameters $200$ mm and $300$ mm respectively. What should be the diameter of

an equivalent pipe if the discharge, length and co$-$efficient of frictions is to kept same for both

the systems?

$($a$)$ Define and give relationship between $C_C,C_V$ and $C_4.$ A circular plate of $3$ m diameter is

immersed vertically in an oil of $sp.Gr\mathrm{.}0-84$ as shown below. Find the oil pressure on the

plate and centre of pressure on plate.

$($b$)$ What do you understand by velocity potential and stream function? Water flows through a

rectangular open channel having width of $2$ m and flow depth $0\mathrm{.}62$ m and discharge $4\frac{m^{\text{'}}}{sec}.$

Find out fraud's number.

$8+(4+4)$

$($a$)$ A tank $6$ m long and $1\mathrm{.}5$ m wide is divided into two parts, so that one part is $1\mathrm{.}8m^2$ and other

part is $6\mathrm{.}2m^2.$ The water level in the larger part is $3*2m$ higher than the lower part. Find the

time taken for difference water level to reach $1\mathrm{.}2$ m if the water flows through a submerged

orifice of $80$ mm diameter in the partitions. Assume coefficient of discharge of orifice as

$0\mathrm{.}625.$

$($b$)$ Describe in brief specific energy curve. A sluice gate discharges water into a rectangular

channel with a velocity $10\frac{m}{sec}$ with $1$ m depth of flow. Find the depth of water after the

hydraulic jump and the loss of total head of water.

Write short notes on any four of the following:

$($a$)$ Condition of rotational flow

$($b$)$ Generalised continuity equation

$($c$)$ Water hammer pressure

$($d$)$ Types of equilibrium of floating body

$($e$)$ Relation between atmospheric, absolute and gauge pressure

$($f$)$ Layout sketch of a Hydropower Generation Station