Question
a.
decreasing cooling rate.
b.
facilitating fusion of high melting metals.
c.
preventing hot cracking.
d.
ensuring full penetration.
Posted under Chemical Engineering Basics Basic Chemical Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. Preheating prior to welding is done for the purpose of
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Presence of sulphur in steel reduces the
View solution
Q. Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
View solution
Q. Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.
View solution
Q. Fire on fuel oil lines can be extinguished by
View solution
Q. In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be
View solution
Q. Optical activity is a/an __________ property.
View solution
Q. Solution loss reaction occurs
View solution
Q. Out of the following materials, the one which generally exhibits an yield point is
View solution
Q. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T1 and T2 is given by
View solution
Q. 'Flare tower' used in industry is meant for
View solution
Q. Which of the following has the highest modulus of elasticity (about 7 x 10⁶ kg/cm²) ?
View solution
Q. Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to
View solution
Q. All radiations falling on a black body are
View solution
Q. Styrofoam is the commercial name of
View solution
Q. Ceramic materials are
View solution
Q. Dryness fraction of dry steam is
View solution
Q. Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?
View solution
Q. Heat required to raise the temperature of a body by 1 °C is called its
View solution
Q. Coating of zinc over steel is known as
View solution
Q. Air-petrol ratio in an automotive petrol engine is around
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!
