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Welding Workshop MCQ

Welding workshop multiple choice questions for 1st year: Q. Which of the following injury is common in gas welding? (A) Electric shock (B) burns due to flame (C) bleeding due…
Posted inMaterial Science

What is phase diagram?

It is a plot on temperature-composition scale showing the stability of different phases. It shows the relationship between temperature, the compositions and the quantities of phases present in an alloy…
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IT System Short questions

IT SYSTEM SHORT QUESTIONS UNITWISE UNIT 1 IT SYSTEM SHORT QUESTIONSDownload UNIT 2 OPERATING SYSTEM SHORT QUESTIONSDownload UNIT 3 FLOWCHART ALGORITHM SHORT QUESTIONSDownload UNIT4 HTMLDownload UNIT 5 COMPUTER NETWORKING &…
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Working principle of Milling

In the field of machine tools and machining operations, milling  machine holds its place for producing surfaces and contours. Milling is a basic machining process by which a surface is…
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Engineering Mehanics MCQ

Q. A force is completely defined when we specify (A) magnitude (B) direction (C) point of application (D) all of the above Q. Forces are called concurrent when their line…
Posted inEngineering Mechanics

If a force acting on a particle is represented by a vector \(\vec{a}\)=5\(\hat{i}\)-10\(\hat{j}\), then find the angle made by the vector with Y axis.If another force \(\vec{b}\)=10\(\hat{i}\)+5\(\hat{j}\) also acts on the same particle simultaneously then, find their resultant vector and angle made with X axis.

\(\vec{a}\)=5\(\hat{i}\)-10\(\hat{j}\) So the magnitude of the vector \(\vec{a}\), |a|=\(\sqrt{5^{2}  + (-10)^{2}}\) = \(\sqrt{25+100}\) = \(\sqrt{125}\)  =5\(\sqrt{5}\)