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91. List some 3D modelling softwares.

Solidworks, Creo, Catia, Autodesk Inventor, Unigraphics.

92. What is Kaizen?

Kaizen is a japanese business philosophy of continuous improvement of working practices.

93. What is JIT?

JIT is just in time production system used to reduce inventories and storage spaces.

94. What is ABS?

Anti-Lock brake system.

95. Which instrument measures speed in a car? 

A speedometer helps measure the speed in the car

96. What is a Vernier Scale?

This is used to measure very small unit with greater accuracy. It consists of a primary scale and a vernier scale. Vernier scale slides on the primary scale. 

Least count of vernier caliper: 0.1mm

Least count of micrometer: 0.01mm.

97. What is Automation?

Automation is any action which can reduce human efforts.

98. Which is the hardest material on earth?

Diamond is currently the hardest material, made up of carbon atoms which cannot move. Carbon is the only atom that can have four electrons in the second shell surrounding the carbon nucleus, precisely why making a diamond the hardest material. However, there also are claims by a few a new rare material called Wurtzite Boron Nitride which has a structure similar to a diamond but has some other atoms in place of carbon.

99. What is Bauschinger effect?

According to Bauschinger, the limit of proportionality of material does not remain constant but varies according to the direction of stress under cyclic stresses.

100. What are the points in the stress-strain curve for steel?

Proportional limit, elastic limit or yield point, ultimate stress and stress at failure.


Mechanical Engineering important question for interview.

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