ISRO Scientist or Engineer Mechanical Dec 2017

Instructions

For the following questions answer them individually

ISRO Scientist or Engineer Mechanical Dec 2017 - Question 51


A point P moves along the path $$y = x^2 - 4$$. What is the displacement when the point moves from x = 1 to x = 3

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 52


The pulley system shown in figure has a mass of 1.5 kg and a radius of gyration of 0.2 m. The angular acceleration of the pulleys, when the suspended masses are released is

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 53


A U tube manometer shown in figure is used to measure the gauge pressure of water of density $$\rho_1 = 1000 kg/m^3$$. If the density of manometer liquid $$\rho_2$$ is $$12000 kg/m^3$$ hl = 0.5 m & h2 = 1.0 m, gauge pressure at ‘A’, the centre of tube is (take g = 10 m/s$$^2$$)

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 54


A man draws 3 balls from a jug containing 5 whiteballs and 7 black balls. He gets Rs. 20 for each white ball and Rs. 10 for each black ball. What is his expectation?

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 55


The missing dimension in the following simple part is

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 56


Which one of the following is FALSE about Boronizing process?

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 57


In dynamic balancing of machines, which of the following is NOT a method of measuring the magnitude andlocation of correction weight for a two plane correction?

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 58


The stress produced in a wire of diameter 6 mm, when it is bend around a large cylinder of diameter 2 m can be obtained as (Young’s modulus of both wire and cylinder = 200 GPa, the stress strain curve of the material is given below)

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 59


The critical pressure ratio for maximum discharge in steam nozzle is

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ISRO Scientist or Engineer Mechanical Dec 2017 - Question 60


The type of locator used to prevent jamming during locating of a workpiece is

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