Related Questions
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4
Tesla metre per ampere (T. m/A) is the unit for the measurement of
A. Magnetic susceptibility
C. Permeability of free space
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4
Laser welding is widely employed in the __________ industries.
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4
Rankine cycle comprises of two isothermal and two __________ processes.
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Oxyacetylene reducing flame is used while carrying out welding on
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Which of the following alloying elements is present in maximum percentage in high speed steel?
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4
Vernier calipers cannot be used to measure the
A. I.D. & O.D. of the shaft
D. Clearance between two mating surfaces
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4
The leaching solvent used in Baeyer's process for the purification of bauxite is
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4
Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.
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In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?
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Temper brittleness of a material can be fairly detected by the __________ test.
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4
For preparation of porous bearings by powder metallurgy, preferred particle shape is
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__________ property of a material is determined by the Herbert Pendulum device.
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Addition of __________ to steel does not impart hardness.
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Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.
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4
Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.
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4
Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.
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4
Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
A. Small punches, broaches reamers and springs
B. Cutlery, screws, rivets and files
C. Mandrels, twist drills, small lathe tools and razors
D. Forgings like can shaft, structural steel plate, threading dies and drawing dies
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4
With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.
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4
__________ test is the appropriate test to determine whether a material is ductile or brittle.
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4
Gross national product (GNP) means the total value of __________ in a country.
C. Earning of the citizens
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4
Unit of viscosity in CGS system is
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Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore?
A. High fusibility & fluidity
B. High thermal conductivity
D. High chemical activity
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4
Neutrons are present in all atoms except that of
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Solute atoms which cause yield point phenomenon in mild steel are/is
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Reynolds number of a fluid flowing in a circular pipe is 10,000. What will be the Reynolds number when the fluid velocity is decreased by 30% & the pipe diameter is increased by 30%?
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Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.
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4
The same volume of all gases is representative of their
C. Gas characteristic constants
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4
Lead pencil contains
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4
Faraday's law of electrolysis is related to the
B. Atomic number of the cation
C. Equivalent mass of the electrolyte
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The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.