Explore topic-wise MCQs in Engineering.

What is the normal range of exit cone angle of a venturimeter ?

Hydraulic mean depth (D_m) for a circular pipe of diameter 'D' flowing full is 0.25 D. For a circular channel, at D_m = 0.3 D, gives the condition for the maximum

Most commonly used joint in the underground pipe lines is the

Schedule number of a pipe, which is a measure of its wall thickness, is given by

The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the

Which of the following denotes the effect of compressibility in fluid flow ?

Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

The terminal velocity of a small sphere settling in a viscous fluid varies as the

If the discharge of a centrifugal pump is throttled, then its suction lift

Foot valves provided in pumps are __________ valves.

The maximum delivery pressure of compressors can be upto __________ atmospheres.

Fog is an example of colloidal system of

Chromium molybdenum steel can not be welded using __________ welding.

Auto collimator is used to check

The following type of bonding is strongly directional in solids.

A high pressure boiler generates steam at a pressure greater than __________ kg/cm² .

Evaporative cooling process employs a combination of cooling and humidification in which the

Which of the following is not an explosive ?

Maxwell's thermodynamic relations applies to the

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans ?

Machinability of hard alloys and tool steels is improved by

When the momentum of one fluid is used for moving another fluid, such a device is called a/an

The normal stress is the same in all directions at a point in a fluid, when the fluid is

Head developed by a centrifugal pump depends on its

Tin based white metals are used, where bearings are subjected to

Friction factor for fluid flow in pipe does not depend upon the

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Power loss in an orificemeter is __________ that in a venturimeter.

The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.

Which of the following is not concerned with the fluid-particle interaction ?

The Navier-Stokes equation deals with the law of conservation of

The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10^-6m²/s).

For the free settling of a spherical particle through a fluid, the slope of, C_D-log N_Re , plot is

In the blast furnace, incorporation of water vapour in the blast gives the following effect.

Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means

Titanium can be easily welded using __________ welding.

Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

The rate of change of moment of momentum represents the __________ by the fluid.

Co-efficient of discharge (C_d) is defined as actual discharge/theoretical discharge and is equal to C_c . C_v; where C_c = Co-efficient of contraction and C_v = co-efficient of velocity. C_d of an orifice is usually about

The curve of metacentre for a floating body __________ the curve of buoyancy.

Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

Which of the following is a Newtonian fluid?

Froude number is the ratio of

Pick out the correct statement pertaining to the flow through a converging-diverging tube.

A rectangular surface 3' x 4', has the lower 3 edge horizontal and 6' below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is(where, y = specific weight of water)

For the same terminal conditions and fitting size, the least friction loss is incurred in a/an

The order of a chemical reaction