[Download PDF] ISRO Scientist or Engineer Mechanical 2020 Paper with Solutions

Instructions

For the following questions answer them individually

Question 41

If a block slides outward on a link at a uniform rate of 30 $$\frac{m}{s}$$, while the link is rotating at a constant angular velocity of 50 $$\frac{rad}{s}$$ counter clockwise, the Coriolis component of acceleration is ................$$ \frac{m}{sec^{2}}$$.

Video Solution

Question 42

In a screw jack of lead angle a, the effort required to lift the load Wis given by ........... ($$\phi$$ = Friction Angle)

Video Solution

Question 43

When the axes of first and last gear are co-axial, then gear train is known as

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Question 44

A disc spinning on its axis at 20 $$\frac{rad}{s}$$ will undergo precession when a torque 100 N-m is applied about an axis normal to it. If the mass momentof inertia is 1 kg-m?, then the angularvelocity of precession is?

Video Solution

Question 45

Which of the following is an absorption type dynamometer?

Video Solution

Question 46

Which of the following mechanism provides intermittent rotary motion

Video Solution

Question 47

If m, nare integers and m + n is odd then the value of $$ \int_{0}^{\pi} \sin mx . \cos nx dx $$is

Video Solution

Question 48

$$1+x+\frac{x^{2}}{2}-\frac{x^{4}}{8}-\frac{x^{5}}{15}+................\infty$$

Video Solution

Question 49

The Laplace transform of $$e^{at} \cos \omega t$$

Video Solution

Question 50

If $$\nu = yzi + 3zxj + zk$$, then curl $$\nu$$ is

Video Solution

CAT Content

ISRO Scientist or Engineer Mechanical 2020

ISRO Scientist or Engineer Mechanical 2020

If a block slides outward on a link at a uniform rate of 30 $$\frac{m}{s}$$, while the link is rotating at a constant angular velocity of 50 $$\frac{rad}{s}$$ counter clockwise, the Coriolis component of acceleration is ................$$ \frac{m}{sec^{2}}$$.

In a screw jack of lead angle a, the effort required to lift the load Wis given by ........... ($$\phi$$ = Friction Angle)

When the axes of first and last gear are co-axial, then gear train is known as

A disc spinning on its axis at 20 $$\frac{rad}{s}$$ will undergo precession when a torque 100 N-m is applied about an axis normal to it. If the mass momentof inertia is 1 kg-m?, then the angularvelocity of precession is?

Which of the following is an absorption type dynamometer?

Which of the following mechanism provides intermittent rotary motion

If m, nare integers and m + n is odd then the value of $$ \int_{0}^{\pi} \sin mx . \cos nx dx $$is

$$1+x+\frac{x^{2}}{2}-\frac{x^{4}}{8}-\frac{x^{5}}{15}+................\infty$$

The Laplace transform of $$e^{at} \cos \omega t$$

If $$\nu = yzi + 3zxj + zk$$, then curl $$\nu$$ is

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