ISRO Scientist or Engineer Mechanical 2018
For the following questions answer them individually
ISRO Scientist or Engineer Mechanical 2018 - Question 51
The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the
ISRO Scientist or Engineer Mechanical 2018 - Question 52
The frequency of ultrasonic waves is
ISRO Scientist or Engineer Mechanical 2018 - Question 53
Loudness of the sound does not change with the change in
ISRO Scientist or Engineer Mechanical 2018 - Question 54
The hydraulic diameter, $$D_h$$, of a rectangular channel with sides ‘a’ and ‘b’ is
ISRO Scientist or Engineer Mechanical 2018 - Question 55
Which of the following has maximum value of thermal conductivity?
ISRO Scientist or Engineer Mechanical 2018 - Question 56
The value of Biot number is very small (< 0.01) when
ISRO Scientist or Engineer Mechanical 2018 - Question 57
A steam pipe is to be insulated by 2 insulating materials put over each other. For best results
ISRO Scientist or Engineer Mechanical 2018 - Question 58
The main objective of ‘shot peening’ is to improve which property of metal parts
ISRO Scientist or Engineer Mechanical 2018 - Question 59
A hole is of dimension $$\phi 60^{\frac{+0.015}{-0.000}}$$ and the corresponding shaft is of dimension $$\phi 60^{\frac{+0.011}{-0.001}}$$. When they are assembled they will form a
ISRO Scientist or Engineer Mechanical 2018 - Question 60
Which of the following carbon steels is most weldable?
