ISRO Scientist or Engineer Mechanical 2011
For the following questions answer them individually
ISRO Scientist or Engineer Mechanical 2011 - Question 11
A fluid jet is discharging from a 100 mm nozzle and the vena contracta formed has a diameter of 90 mm. If the coefficient of velocity is 0.95, then the coefficient of discharge for the nozzle is
ISRO Scientist or Engineer Mechanical 2011 - Question 12
A fully developed laminar viscous flow through a circular tube has the ratio of maximum velocity to average velocityas
ISRO Scientist or Engineer Mechanical 2011 - Question 13
If the surface tension of water-air interface is 6.073 N/m, the gauge pressure inside a rain drop of 1 mm diameter will be
ISRO Scientist or Engineer Mechanical 2011 - Question 14
A stream function is given by $$(x^2 - y^2)$$. The potential function of the flow will be
ISRO Scientist or Engineer Mechanical 2011 - Question 15
The temperature profile between two metal walls joined together is shown in Fig.From the figure it can be concluded that
ISRO Scientist or Engineer Mechanical 2011 - Question 16
According to Fourier’s law, amount of heat flow (Q) through the body in unit time is equal to
ISRO Scientist or Engineer Mechanical 2011 - Question 17
Pitch diameter is equal to the product of
ISRO Scientist or Engineer Mechanical 2011 - Question 18
The tension in the cable supporting a lift moving upwardsis twice the tension when the lift moves downwards. Whatis the acceleration of the lift? |
ISRO Scientist or Engineer Mechanical 2011 - Question 19
Whirling speed of a shaft coincides with the natural frequency of its
ISRO Scientist or Engineer Mechanical 2011 - Question 20
Oscillation of a particle is prescribed by the equation $$ x = 3 \cos(0.25 \pi t),$$ where t is the time in seconds. The time taken by the particle to move from position of equilibrium to maximum displacement is
