Question
a.
Both annealing and normalising release the internal stresses of the material besides improving the mechanical properties.
b.
Low carbon steel does not respond to the heat treatment for hardening of the material, hence it is subjected to case hardening or surface hardening processes like cyniding, carburising, nitriding etc., which produces high carbon outer layers resulting in increase of surface hardness.
c.
Induction hardening and flame hardening techniques are also used for surface hardening.
d.
Martempering of a material is a hardening process.
Posted under Basic Chemical Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Pick out the wrong statement.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Use of flux during soldering is done to
View solution
Q. Resilience of a bolt can be increased by increasing its
View solution
Q. A boy weighing 110lb climbs up a 50 ft high vertical destination in 100 seconds. Horse power of the boy is __________ hp.
View solution
Q. Endurance is a measure of fatigue limit of a metal. Fatigue crack in nitrided machine parts originates
View solution
Q. Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with
View solution
Q. Draft allowance given to patterns is for
View solution
Q. Which of the following welding processes employs the highest welding temperature ?
View solution
Q. The best criterion for analysing an economic investment is the
View solution
Q. Deformation band is absent in materials having __________ lattice crystal structure.
View solution
Q. Out of the following, the rays having the lowest wavelength is the
View solution
Q. A fine grained grinding wheel should not be used for grinding __________ materials.
View solution
Q. What is the effect on the performance of the economiser in the thermal power plant boiler, if the feed water temperature is very low due to preheaters being out for repairs or starving of steam supply ?
View solution
Q. A good abrasive
View solution
Q. Out of the following, __________ pipe is the least corrosion resistant.
View solution
Q. In order to protect the aquatic creatures, the dissolved oxygen content in fresh water stream should never be less than __________ PPm.
View solution
Q. For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg) ?
View solution
Q. Sheardising process is used for
View solution
Q. Mechanism/phenomenon involved in the improvement of fatigue strength of a material by shot peening is the
View solution
Q. Springs are not made of
View solution
Q. Pick out the wrong statement.
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
