M10 index of coke indicates its
Compressive strength
Hardness
Abrasion resistance
Impact strength
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- With increase in impurities in metals, their corrosion resistances
- An alloy of Fe - 0.4 % C is
- Which of the following does not discharge the dust collected as a dry solid?
- Quartz is a __________ material.
- The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
- For a spontaneous natural process at constant temperature and pressure, the free energy of the system…
- Magnetic permeability of iron is increased by its
- __________ joint is mostly used for joining pipes carrying water at low pressure.
- An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform…
- Which of the following heat treatment processes is usually applied to castings?
- The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________…
- Material of construction of foundry crucible is
- Joule-Thomson co-efficient is the ratio of
- Laser welding is widely employed in the __________ industries.
- Which of the following phenomenon will exhibit the minimum heat transfer?
- Steel is welded using the __________ flame.
- Temper brittleness of a material can be fairly detected by the __________ test.
- In the Bayer's process, bauxite is digested under pressure using
- The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the
- Cast iron contains __________ percent carbon.
- Alloy powder manufactured by the following process have spherical shapes.
- __________ is not a heat treatment process.
- The lightest non-inflammable gas is
- Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent…
- Silicon crystal can be converted to p-type semiconductor by doping with
- In inventory control theory, the economic order quantity (EOQ) is the
- Alloying elements present in Haynes stellite, which has superior performance than high speed steel,…
- Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
- Water-tube boiler is the one, in which
- Biological shield in a nuclear reactor is generally provided to protect against the