Which of the following valves will incur maximum pressure drop for the same discharge of water ?

Pressure gradient in the pipe flow is influenced by the

Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.

__________ pump is the most suitable device for discharging a liquid against a pressure of ≥kgf/cm².

Viscosity of a liquid decreases __________ with rise in temperature.

The maximum discharge through a circular channel takes place, when the depth of the fluid flow is __________ times the pipe diameter.

In deriving Bernoulli's equation, fluid is assumed to be

With increase in molecular weight of the gas, the head developed by a centrifugal compressor will

For flow through a venturi at a particular discharge, the correct relationships among heads at points X, Y, and Z are

Major loss in sudden contraction in pipe flow is due to

The continuity equation

__________ pumps are a group of vacuum pumps.

Boiler feed water pump is usually a __________ pump.

In case of a pipe of constant cross-sectional area, the maximum fluid velocity obtainable is

Discharge in laminar flow through a pipe varies

When the head pumped against is less than the head of the fluid used for pumping, the usual device is a/an

Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Forces acting on a particle settling in fluid are __________ forces.

Unit of mass velocity is

Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).

The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.

In magnetic flow meters, voltage generation is

Which of the following can be used to create a flow of gas, where no significant compression is required ?

The ratio of actual discharge to theoretical discharge through an orifice is equal to

The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is.....the mean velocity of flow.

Plunger pumps are used for

A centrifugal pump has the following specifications:
Power = 4 H.P.; Speed =rpm
Head = 8 metres
Flow =litres/minutes.
If its speed is halved, the power consumed now will be __________ hp.

The lift of a ballon is

What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.?

A lubricanttimes more viscous than water would have a viscosity (in Pa.s)

For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the

Low specific speed of a pump implies that, it is a/an __________ pump.

C_p/C_v is termed as

Pressure drop in a packed bed for laminar flow is given by the __________ equation.

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.

What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate ?

Transition length for turbulent flow in smooth pipe is equal to __________ times the pipe diameter.

Hot wire anemometer is used to measure the

Diaphragm pumps are used to transport

In which of the following body shapes, the pressure drag is large compared to the friction drag ?

Froude number is the ratio of

The schedule number of a pipe is an indication of its

__________ is an example of axial flow impeller.

Pitot tube measures the __________ of a fluid.

In a dry packed bed, the pressure drop will be changed by increasing the flow rate as

Design of the casing of centrifugal pump should be such as to minimise the

Stoke's law is valid, when N_{Re, p} is less than

In turbulent flow, the

Momentum correction factor used in fluid flow problems accounts for the

Disc compensators are provided in large diameter fuel gas carrying pipelines to