The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the
A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
The main constituent of bones is
Iron content in Indian iron ore is about __________ percent.
The normal stress is the same in all directions at a point in a fluid, only when the fluid
Dielectric
Potable water means the water used for
Non-ferrous alloys used for making cutting tools need not have high
The trace metal present in insulin is
Photographic plates are coated with
Diamagnetic materials
Carbon supply in pack carburising process is in the form of
Globular form of cementite is formed during the __________ process.
The heat treatment to which the steel wire containing > 0.carbon is subjected to is
A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is
Normalising of an object does not
One ton of refrigeration is not equivalent to the heat removal rate of
Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
Hardening of steel is not possible, unless it is heated __________ critical point.
In connection with corrosion of metals, passivation is the process that
For the irreversible reaction, Ca+= Ca C2 , Δ H°= -J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved atK will be
A fluid is termed as the Newtonion fluid, when the shear stress is __________ the velocity gradient.
Pipelines carrying various utilities in chemical industries are identified by their colour codes. The color of pipeline carrying steam is
Water hammer is caused in steam carrying pipelines, because of
Dislocation cross-slip is difficult in those materials, which have
With increase in temperature, the electrical conductivity of a __________ decreases.
Faraday's law of electrolysis is related to the
__________ of hard alloy and tool steel is done to make it easily machinable.
Starting friction is low in case of the __________ lubrication.
Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be
The burnout heat flux in the nucleate boiling regime is not a function of the
For a first order chemical reaction, the concentration of the reactant decreases __________ with time.
Hot extrusion of aluminium is done in the temperature range of __________ °C.
Drossing is a __________ operation.
Isotropic materials have the same __________ in all directions.
With increase in impurities in metals, their corrosion resistances
Projection welding & stud welding is categorised as the __________ welding.
Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
What is the percentage of chromium in 18-4-1 high speed steel ?
Powder metallurgy is used to produce
Shrinkage allowance on pattern is provided to compensate for shrinkage when the
All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.
The two elements required to form substitutional solid solution should not have
Coating provided on the electrodes used in the arc welding is not expected to
Which of the following mainly decides the current to be employed is arc welding ?
What is the pH of distilled water ?
The machanism involved in the removal of metal in drilling operation is by
Ultimate strength in tension as compared to that in shear for steel is
Glycerene is used as a coolant in cooling of some engines instead of water, because
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