Ask a Question

In the process of directional solidification, weight always remains constant for all the materials.

← Prev Question Next Question →
+1 vote
89 views
in Casting-Forming-Welding I by (687k points)
In the process of directional solidification, weight always remains constant for all the materials.

(a) True

(b) False

The question was asked in an interview.

My question is taken from Directional Solidification in chapter Pattern and Mould, Principles of Gating & Risering of Casting-Forming-Welding I

1 Answer

+2 votes
by (828k points)
selected by
 
Best answer
Right choice is (b) False

The explanation: According to the conservation of mass, weight remains constant until occurring of any reaction in the process. So, in some cases of materials, weight loss can occur by evaporation when the vapour pressure is very high. For example, vapour pressure of chromium is relatively high, about ten times the vapour pressure of silicon at the processing temperatures.

Related questions

Welcome to TalkJarvis QnA, a question-answer community website for the people by the people. On TalkJarvis QnA you can ask your doubts, curiosity, questions and whatever going in your mind either related to studies or others. Experts and people from different fields will answer.

Most popular tags

biology – class 12 biology – class 11 construction & building materials chemistry – class 12 electronic devices & circuits network theory data structures & algorithms ii cell biology ic engine insurance finance money computational fluid dynamics engineering physics i discrete mathematics chemistry – class 11 aerodynamics casting-forming-welding i engineering mathematics operating system casting-forming-welding ii engineering drawing mysql engineering geology digital circuits wireless mobile energy management electrical measurements digital communications cyber security analytical instrumentation embedded systems electric drives cytogenetics advanced machining computer fundamentals life sciences basic civil engineering iot design of electrical machines physics – class 12 applied chemistry dairy engineering basic chemical engineering cloud computing microprocessor bioinformatics aircraft design aircraft maintenance software engineering drug biotechnology digital signal processing biochemistry data structures & algorithms i automotive engine design avionics engineering material & metallurgy energy engineering cognitive radio unix electrical machines biomedical instrumentation object oriented programming electromagnetic theory power electronics analog communications bioprocess engineering civil engineering drawing engineering metrology physics – class 11 mathematics – class 12 engineering chemistry i basic electrical engineering unit processes mongodb signals and systems cryptograph & network security hadoop mathematics – class 11 engineering physics ii html control systems engineering mechanics antennas analog circuits computer network java sql server javascript concrete technology chemical process calculation artificial intelligence design of steel structures c++ database management computer architecture engineering chemistry ii corrosion engineering chemical technology dc machines
Powered by TalkJarvis
...