ISRO Scientist or Engineer Mechanical 2018

Instructions

For the following questions answer them individually

ISRO Scientist or Engineer Mechanical 2018 - Question 61


A small percentage of Boron is added to steel in order to

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ISRO Scientist or Engineer Mechanical 2018 - Question 62


A material that exhibits the same elastic properties in all directions at a point is called

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ISRO Scientist or Engineer Mechanical 2018 - Question 63


No of atoms per unit cell of a face centered cubic (FCC) lattice is

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ISRO Scientist or Engineer Mechanical 2018 - Question 64


In asheet metal of 3 mm thickness of a hole of 7 mm diameter needs to be punched. The yield strength in tension of the sheet material is 120 MPa and its ultimate shear strength is 100 MPa. The force required to punch the hole is

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ISRO Scientist or Engineer Mechanical 2018 - Question 65


Profile of a gear tooth can be checked by

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ISRO Scientist or Engineer Mechanical 2018 - Question 66


The reflector combined with auto collimator can be used for checking

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ISRO Scientist or Engineer Mechanical 2018 - Question 67


PERT has following time estimate

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ISRO Scientist or Engineer Mechanical 2018 - Question 68


Which of the following is an amorphous material?

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ISRO Scientist or Engineer Mechanical 2018 - Question 69


In a party, each person shook hands with every other person present. The total number of hand shakes was 45. The number of people in the part are

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ISRO Scientist or Engineer Mechanical 2018 - Question 70


Which of the following method is said to be a direct method in numerical methods?

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