Energy of the sun arises mainly from __________ reactions.

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

Which of the following is not an explosive ?

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

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

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

The following type of bonding is strongly directional in solids.

Titanium alloys are welded using the following process:

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

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

Machinability of hard alloys and tool steels is improved by

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

An alloy of Fe - 0.4 % C is

In chemical dehumidification process

A solar cell converts the sunlight directly into __________ energy.

Powder metallurgy process does not make metal powder by

In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

Pick out the wrong statement.

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

Copper deposits are found in India at the following location:

Speisses is a mixture of the following:

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 ?

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

Absolute zero pressure can be attained at a temperature of

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

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

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

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

Auto collimator is used to check

Corrosion of metals can not be prevented by its

If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity

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

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

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

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

Which one of the following is incombustible ?

The product of cupola is called

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

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

Annealing of white cast iron produces __________ iron.

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

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

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.

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

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

Fog is an example of colloidal system of

Chromium molybdenum steel can not be welded using __________ welding

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

Maxwell's thermodynamic relations applies to the

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

Wrought iron is never shaped by