ISRO Scientist or Engineer Mechanical 2008

Instructions

For the following questions answer them individually

ISRO Scientist or Engineer Mechanical 2008 - Question 31


Interchangeability can be achieved by

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ISRO Scientist or Engineer Mechanical 2008 - Question 32


The centre and radius of the circle $$z\overline{z} - (2 + 3i)z - (2 - 3i)\overline{z} + 9 = 0$$ are

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ISRO Scientist or Engineer Mechanical 2008 - Question 33


Enlarging an existing circular hole with rotating single point toolis called

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ISRO Scientist or Engineer Mechanical 2008 - Question 34


Plug gauges are used to

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ISRO Scientist or Engineer Mechanical 2008 - Question 35


Basic shaft and basic hole are those whose upper deviations and lower deviations respectively - are

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ISRO Scientist or Engineer Mechanical 2008 - Question 36


The general equation of continuity for three-dimensional flow of a compressible fluid for steady flow is (where u, v, w are components of velocity in x, y and z directions respectively)

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ISRO Scientist or Engineer Mechanical 2008 - Question 37


The density of air at $$10^\circ C$$ and 1MPa abs,in SI units is

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ISRO Scientist or Engineer Mechanical 2008 - Question 38


In centrifugal pumps, maximum efficiency is obtained when the blades are

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ISRO Scientist or Engineer Mechanical 2008 - Question 39


If the characteristics of a pump are as shown in fig. What is represented by abscissa

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ISRO Scientist or Engineer Mechanical 2008 - Question 40


A rocket exists exhaust gases with $$\rho = 0.5 kg/m^3$$ out a 50 cm diameter nozzle at a velocity of 1200 m/s The thrust, is

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