Rate of chemical reaction is not much affected, if the reactants are in __________ form.
Rate of chemical reaction is not much affected, if the reactants are in __________ form.
The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the
The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the
The product out from a cupola is called
The product out from a cupola is called
The increase in hardness of metal due to its cold working is termed as the __________ hardening.
The increase in hardness of metal due to its cold working is termed as the __________ hardening.
Desalination of water
Desalination of water
Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.
Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.
Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
Classification of metal forming processes into hot and cold working is based on the following parameters.
Classification of metal forming processes into hot and cold working is based on the following parameters.
A reduction process is accompanied with increase in the
A reduction process is accompanied with increase in the
Diamagnetic materials
Diamagnetic materials
Electrostatic separation of minerals from each other is based on their differences in the following property.
Electrostatic separation of minerals from each other is based on their differences in the following property.
Between 230 and 370°C, blue brittleness is caused in mild steel because of the
Between 230 and 370°C, blue brittleness is caused in mild steel because of the
Pressure exerted by a liquid depends upon its
Pressure exerted by a liquid depends upon its
Iron content in Indian iron ore is about __________ percent.
Iron content in Indian iron ore is about __________ percent.
Dew point of air indicates its
Dew point of air indicates its
The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres.
The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres.
Ester is formed, when an alcohol reacts with
Ester is formed, when an alcohol reacts with
Stainless steel is welded with difficulty because of
Stainless steel is welded with difficulty because of
Nickel is a __________ material.
Nickel is a __________ material.
Baffles provided on the shell side of a shell and tube heat exchanger are meant for
Baffles provided on the shell side of a shell and tube heat exchanger are meant for
Puddling process is used for converting pig iron into
Puddling process is used for converting pig iron into
Dew point temperature always gives an indication of the __________ of the moist air.
Dew point temperature always gives an indication of the __________ of the moist air.
The product out from a cupola is called
The product out from a cupola is called
__________ is not used as a material of construction in thermocouples.
__________ is not used as a material of construction in thermocouples.
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.
Addition of silicon to cast iron
Addition of silicon to cast iron
Scab is a defect developed during __________ of metals.
Scab is a defect developed during __________ of metals.
Which of the following is the largest quantum of pressure?
Which of the following is the largest quantum of pressure?
Fibrous fracture is normally encountered in the __________ materials.
Fibrous fracture is normally encountered in the __________ materials.
Titanium alloys are welded using the Following process:
Titanium alloys are welded using the Following process:
Dowtherm is a
Dowtherm is a
Wood is a/an __________ material.
Wood is a/an __________ material.
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation
Probability of cavitation occuring becomes very high, when the local __________ resulting in water bubbles formation, which on rupture cause cavitation
Identify the correct statement.
Identify the correct statement.
Pick out the wrong statement.
Pick out the wrong statement.
Gratings is associated with the measurement of
Gratings is associated with the measurement of
Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)
Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)
Which of the following is a disaccharide?
Which of the following is a disaccharide?
Copper deposits are found in India at the following location:
Copper deposits are found in India at the following location:
Pick out the wrong statement.
Pick out the wrong statement.
The main constituent of bones is
The main constituent of bones is
Pick out the wrong statement.
Pick out the wrong statement.
With increase in temperature, the electrical conductivity of semiconductors
With increase in temperature, the electrical conductivity of semiconductors
Compressed dry air is used as the cutting fluid, while machining
Compressed dry air is used as the cutting fluid, while machining
Ganister contains maximum percentage of
Ganister contains maximum percentage of
Tip of the match stick contains a mixture of
Tip of the match stick contains a mixture of
Constituents of stellite are
Constituents of stellite are
Which of the following is an acidic constituent of B.F. slag ?
Which of the following is an acidic constituent of B.F. slag ?
Working of linear variable differential transducer (LVDT) is based on the principle of variable
Working of linear variable differential transducer (LVDT) is based on the principle of variable
Drills are usually made of
Drills are usually made of
Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8
Ceramic compounds as compared to metallic compounds
Ceramic compounds as compared to metallic compounds
Titanium is produced by __________ of Ti Cl₄.
Titanium is produced by __________ of Ti Cl₄.
An oxidation process is accompanied with decrease in the
An oxidation process is accompanied with decrease in the
Which of the following properties of a solid is not dependent on crystal imperfection ?
Which of the following properties of a solid is not dependent on crystal imperfection ?
Hard magnetic materials have high
Hard magnetic materials have high
A friction lighter is normally used for lighting gas welding torch, because of the reason that
A friction lighter is normally used for lighting gas welding torch, because of the reason that
Powder metallurgy processing can be used for making
Powder metallurgy processing can be used for making
Silicon percentage in acid resistant cast iron is about
Silicon percentage in acid resistant cast iron is about
X-rays do not exhibit the property of
X-rays do not exhibit the property of
Cast iron compared to steel is better in
Cast iron compared to steel is better in
Which drug is made from vegetables ?
Which drug is made from vegetables ?
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
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
Absolute zero pressure can be attained at a temperature of
Absolute zero pressure can be attained at a temperature of
A jet engine turbine blade is normally manufactured by
A jet engine turbine blade is normally manufactured by
Coarse grained steels have
Coarse grained steels have
Often earing defects are found during deep drawing operation, because the
Often earing defects are found during deep drawing operation, because the
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.
The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________ allowance.
Which of the following commonly used condenser tube materials has the lowest thermal conductivity?
Which of the following commonly used condenser tube materials has the lowest thermal conductivity?
Which of the following contains the least percentage of carbon ?
Which of the following contains the least percentage of carbon ?
Largest application of laser welding is in __________ welding.
Largest application of laser welding is in __________ welding.
The entropy change for a spontaneous process is
The entropy change for a spontaneous process is
During brazing, if the fluxes are entrapped, it results in the
During brazing, if the fluxes are entrapped, it results in the
Which is the most lethal weapon ?
Which is the most lethal weapon ?
Which of the following is the most effective inhibitor of grain growth, when added in small quantity in steel ?
Which of the following is the most effective inhibitor of grain growth, when added in small quantity in steel ?
__________ remains constant during the adiabatic cooling of moist air.
__________ remains constant during the adiabatic cooling of moist air.
Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is
Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is
Lead is most readily dissolved in
Lead is most readily dissolved in
Holes in a plate for rivetted joints is preferably made by
Holes in a plate for rivetted joints is preferably made by
A dense structure of grinding wheel is not used for the
A dense structure of grinding wheel is not used for the
The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.
The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.
Which one of the following is incombustible ?
Which one of the following is incombustible ?
Metal shots used in shot blasting are made of
Metal shots used in shot blasting are made of
Ceramic materials are
Ceramic materials are
In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is
In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is
Globular form of cementite is formed during the __________ process.
Globular form of cementite is formed during the __________ process.
In BOF, desiliconisation is a first order reaction. So the silicon content of the metal decreases
In BOF, desiliconisation is a first order reaction. So the silicon content of the metal decreases
Suitability of steel for its use in cable is judged by its strength in
Suitability of steel for its use in cable is judged by its strength in
The hardness of a grinding wheel is specified by the
The hardness of a grinding wheel is specified by the
Colloids can be purified by
Colloids can be purified by
Corrosion is
Corrosion is
Which of the following is the most wear resistant grade of carbide used for the cutting tools?
Which of the following is the most wear resistant grade of carbide used for the cutting tools?
Out of the following the refractive index is the highest for
Out of the following the refractive index is the highest for
Reynolds number of a fluid flowing in a circular pipe is 10000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?
Reynolds number of a fluid flowing in a circular pipe is 10000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30% ?
The tensile load-elongation curve of a metal does not describe
The tensile load-elongation curve of a metal does not describe
Which of the following manufacturing processes produces the strongest components ?
Which of the following manufacturing processes produces the strongest components ?
Aromatics are desired constituents of
Aromatics are desired constituents of
Tungsten in high speed steel is responsible for its
Tungsten in high speed steel is responsible for its
Nitriding of steel is a process for
Nitriding of steel is a process for
