High endurance limit of carburised machine parts is because of the fact that carburisation
Suppresses any stress concentration produced in the parts
Enhances the yield point of the material
Introduces a compressive layer on the surface
Produces a better surface finish
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- Which of the following metals reacts violently with water?
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- Pick out the wrong statement
- __________ test is the appropriate test to determine whether a material is ductile or brittle.
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- Hydrogen can be
- Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
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- A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…
- What is the value of included angle of a triangular notch for maximum discharge?
- Transformation range for ferrous material is the temperature interval during which __________ is formed…
- Minimum thermal efficiency of a steam boiler may be around __________ percent
- Difference at any instant between the value of the controlled variable and the set point is called the
- In a neutral solution
- Induced draft fans provided in large thermal power plant boilers have __________ blades.
- __________ furnace is generally used in the non-ferrous foundries.
- Which of the following material handling equipments is not suitable for moving materials in varying…
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- The pressure outside a bubble/droplet of liquid is __________ the internal pressure.
- With increase in temperature, the electrical conductivity of a __________ decreases.
- Most of the phosphorous present in the blast furnace burden enters into
- The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of…
- Milk is fat dispersed in water. It is an example of
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