Explore topic-wise MCQs in Engineering.

The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

The fluid property, due to which, mercury does not wet the glass is

Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Energy of the sun arises mainly from __________ reactions.

Which of the following fastening devices has a head at one end and a nut fitted to the other ?

Sudden fall of atmospheric pressure by a large amount is an indication of the

Copper deposits are found in India at the following location:

Corrosion of metals can not be prevented by its

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

Absolute zero pressure can be attained at a temperature of

In extrusion of metals, which of the following statement is true ?

Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Titanium alloys are welded using the Following process:

A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is

Powder metallurgy process does not make metal powder by

An alloy of Fe - 0.4 % C is

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

Maximum permissible air velocity in pipelines is about __________ metre/second.

Annealing ofwhite cast iron produces __________ iron.

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

A solar cell converts the sunlight directly into __________ energy.

If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.

Wrought iron is never shaped by

For a particle settling in water at its terminal settling velocity, which of the following is true ?

A Bingham fluid of viscosity = 10 Pa.s and yield stress, ₀ = 10 KPa, is shared between flat parallel plates separated by a distance of 10^-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is

Shear stress in a fluid flowing in a round pipe

The resistance wire used in a hot wire anemometer for conducting electrical current is made of

Pressure drag does not depend upon the

__________ pumps are axial flow pumps.

Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid.

Co-efficient of velocity is __________ the coefficient of discharge.

All pipes of a particular nominal size have the same

Maximum theoretical suction lift for water at 15 C by a centrifugal pump is 34 ft. The same for water at 90 C will be __________ ft.

With increasing flow rate, the hydraulic efficiency of a centrifugal pump

The velocity profile for turbulent flow through a closed conduit is

For the transfer of solution of thick slurry, the pump used is a __________ pump.

In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of

Water hammer in a pipeline results from the

Molten soap mass is transported by a __________ pump.

A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity

At high Reynolds number

The pitot static tube does not measure the __________ pressure.

In fluid flow, cavitation is caused, if the

The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is

The terminal velocity of a particle moving through a fluid varies as d_pⁿ. What is the value of n' for Newton's law regime ?