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A pattern is shaken by striking it with a wooden piece. A negative allowance is provided for this. Which allowance is it?

A pattern is shaken by striking it with a wooden piece. A negative allowance is provided for this. Which allowance is it? Correct Answer Rapping Allowance

In rapping or shake allowance, the pattern is taken out of the mould and it is rapped or shaken, so as to free it from the adjoining sand. Due to this, there may be a little increase in the size of the mould cavity.

Related Questions

When a pattern is to be withdrawn from the mould, it is first shaken, by striking over it from side to side, so that its surface may be free of the adjoining sand wall of the mould. That causes the size of the mould cavity increases a little and a negative allowance is to be provided in the pattern to compensate the same, is known as:
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
Two statements are followed by three Conclusions I, II and III. You have to consider the statements to be true, even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions can definitely be drawn from the given statements and indicate your answer accordingly. Statements: I. After a Pay Commission bonanza of 2% hike in dearness allowance in March, central government employees and pensioners can expect another round of salary increase with the government set to modify the index and base year for calculating dearness allowance.  II. The labour ministry is working on a new series of consumer price index for industrial workers (CPI-IW), which is used to determine dearness allowance (DA).  Conclusions: I. DA is a cost of living adjustment allowance paid to government employees, public sector employees and pensioners in the country. It is calculated as a percentage of an employee’s basic salary to mitigate the impact of inflation on people.  II. Since theindex is used to determine dearness allowance of all government employees and industrial workers there may be significant financial implication. III. The trend so far is that the weightage of transport, healthcare and housing has gone up many fold in the new series in the monthly expenditure of an industrial worker, especially consumption of petrol and diesel with the addition of cars to it, while there is decline in overall food basket which is being diversified.
Identify the segment in the sentence, which contains the grammatical error. Wooden birds fluttered among the trees and wooden cows were browsing upon the wooden grass; but most amazing things of all were the wooden people--the creatures known as Gargoyles.
There are some chairs and some tables in a shop. Some are wooden while other are steel made. If two items are picked up at random without replacement then find the probability that both are wooden. Statement I: There are total 42 chairs and 30 tables in the shop. Statement II: 24 items are not wooden in the shop which is 1/3rd of the total items in the shop. 
Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement. Statement: I: All windows are aluminium. II: Some windows are wooden. Conclusion: I: Some wooden are not aluminium. II: Some wooden are aluminium. III: Some aluminium are window.
In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if theyseem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statements:
(I) Demand of wooden furniture has gone down in an aggregate scenario.
(II) Wooden furniture has been replaced by fiber or plastic made furniture. Conclusion:
(I) Wooden furniture needs more maintenance and it is difficult to handle.
(II) Plastic furniture is termite free and can be easily handled.
Select a figure from amongst the four alternatives, which when placed in the blank space of figure (X) would complete the pattern.
Completion of Incomplete Pattern mcq question image
Select a figure from amongst the four alternatives, which when placed in the blank space of figure (X) would complete the pattern.
Completion of Incomplete Pattern mcq question image
Select a figure from amongst the four alternatives, which when placed in the blank space of figure (X) would complete the pattern.
Completion of Incomplete Pattern mcq question image