Electrostatic separation of minerals from each other is based on their differences in the following property.
Densities
Magnetic permeabilities
Electrical conductivities
Hardness
- In case of compression of one kg of air, the work done will be the least, when the value of polytropic…
- The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.
- Brittleness induced due to the presence of sulphur in steel can be reduced by adding
- Which one can be directly solidified from gaseous state without entering into liquid state?
- The trace metal present in insulin is
- The substance used as a smoke screen in warfare is
- Which of the following is not a charge material for cupola?
- Tesla metre per ampere (T. m/A) is the unit for the measurement of
- Which of the following approaches the ideal gas behaviour most closely?
- Pick out the wrong statement.
- In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
- If the demand for an item is trebled and the order cost is reduced to one third, then the economic order…
- Quartz is a __________ material.
- Which of the following is an unconventional source of energy?
- Cemented carbide tools are not suitable for cutting
- Viscoelastic behaviour is observed in __________ materials.
- Current employed in resistance welding ranges from __________ kVA/.
- Superheating of steam is done at constant
- Primary designation of steel is based on its
- Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________…
- Ceramic compounds as compared to metallic compounds
- Electrochemical corrosion can occur, only if __________ is present in contact with metal.
- Which of the following materials does not form adherent oxide film on surface?
- Out of the following, the __________ pipe has the least corrosion resistance.
- Pearlite comprises of
- Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
- Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement.…
- A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K…
- Hot & cold working of material causes its __________ deformation.
- Ammonia gas can be dried by