ISRO Scientist or Engineer Mechanical May 2017
For the following questions answer them individually
ISRO Scientist or Engineer Mechanical May 2017 - Question 31
The point where the plane x + 3y + 2z − 6 = 0 meets the line joining P (2, 1, 1) and Q (1, 3, − 2) is,
ISRO Scientist or Engineer Mechanical May 2017 - Question 32
$$\int_{0}^{\frac{\pi}{2}}\sin^{7}x dx $$ is
ISRO Scientist or Engineer Mechanical May 2017 - Question 33
Laplace transform of $$t \cos (at)$$ is
ISRO Scientist or Engineer Mechanical May 2017 - Question 34
If two vectors $$\overrightarrow{a} = 3i + 4j - 7k$$ and $$\overrightarrow{b} = Pi - 6j + 3k$$ are perpendicular, the value of $$P$$ is
ISRO Scientist or Engineer Mechanical May 2017 - Question 35
The arithmetic mean of 12 data point is 79. Later it was found that two data points were wrongly taken as 83 and 68 in place of 78 and 97. The actual mean is
ISRO Scientist or Engineer Mechanical May 2017 - Question 36
How does cetane number varies with octane number in fuels in IC engines?
ISRO Scientist or Engineer Mechanical May 2017 - Question 37
The relationship of the shear angle $$\phi = \frac{\pi}{4} - \beta + \frac{\alpha}{2}$$ is as per ('$$\alpha$$' is rake angle and '$$\beta$$' is friction angle)
ISRO Scientist or Engineer Mechanical May 2017 - Question 38
For a plate with an elliptical hole subjected to tensile stress, $$\sigma$$ as shown in the figure, the maximum tensile stress at point P is
ISRO Scientist or Engineer Mechanical May 2017 - Question 39
A centrifugal compressor is suitable for which of the following?
ISRO Scientist or Engineer Mechanical May 2017 - Question 40
The optimum cutting speed for maximum production is (‘n’ is tool constant and ‘Tc ’ is time required to change the tool)
