The ratio of coil diameter to wire diameter of a spring is called the spring

Isotropic materials have the same __________ in all the directions.

A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

Galena is an ore of

A reduction process is accompanied with increase in the

Nitrogen compounds are not used in the manufacture of

Increasing the temperature of a material makes it

Which of the following absorbs maximum heat in a high pressure boiler ?

Diamond does not conduct electricity, because

__________ can not be forged.

Which of the following alloying elements reduces the formation of iron sulphide in steel ?

Yield strength of a polycrystalline metal with an average grain size, d, is proportional to

A simple closed grinding circuit may consist of

Disposable patterns are made of

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Dialysis is the process of separating substances in the

The gases used in the treatment of asthma is a mixture of __________ and oxygen.

An ideal fluid is

When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the

Draught produced by a tall chimney due to density difference between hot flue gas inside the Chimney and atmospheric air outside the chimney is more appropriately known as the __________ draught.

Stellite is a trade name for the

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

Material having maximum density is

In age-hardenable alloys, maximum ductility is obtained

Prandtl mixing length in turbulent flow signifies the

Which of the following is capable of acting both as an acid flux as well as a basic flux in the metal extraction from its ore ?

Needles are produced by

Magnesium addition to cast iron increases its

A material subjected __________ must have high resilience.

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (C_p/C_v) ρ = specific weight of the gas)

The fatigue resistance of a material is improved by the following technique.

Which is the most suitable joint for the pipes, with are laid submerged under water, where the bottom of the river bed is uneven ?

Floating control action

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

__________ property of steel increases by addition of large amount of silicon in it.

Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

Triple point of water is

Solute atoms which cause yield point phenomenon in mild steel are/is

Silicon crystal can be converted to p-type semi-conductor by doping with

A material lacking in toughness is usually termed as

The basic constituent of vegetable oils is

Increase in temperature, in general results in the

Which of the following can be manufactured using powder metallurgy techniques?

Boiler rating is normally done in terms of

Metal shots used in shot blasting are made of

At the point of boundary layer separation in fluid flow, the

Basic open hearth furnace (BOF) is not used for producing __________ steel.

Principal alloying element in Elinvar (used for making hair springs for watches) is

__________ stress can not be sustained by a fluid in equilibrium.

__________ test can be termed as the semi-distructive test.