ISRO Scientist or Engineer Mechanical 2016
For the following questions answer them individually
ISRO Scientist or Engineer Mechanical 2016 - Question 71
A wire has a mass ($$0.3 \pm 0.003$$) g, radius ($$0.5 \pm 0.005$$) mm and length ($$6 \pm 0.06$$) cm. The maximum percentage error in the measurementof density is
ISRO Scientist or Engineer Mechanical 2016 - Question 72
Match the items in column-1 and column-2 and choose the correct combination
ISRO Scientist or Engineer Mechanical 2016 - Question 73
Which ofthe following pressure gauge is generally used for the calibration of other pressure measuring gauges
ISRO Scientist or Engineer Mechanical 2016 - Question 74
In a ball bearing, if the number of balls is reduced to half and diameter of the ball is increased to 4 times, then static load capacity of the ball bearing is
ISRO Scientist or Engineer Mechanical 2016 - Question 75
The velocity of sound in winter compared to summer will be
ISRO Scientist or Engineer Mechanical 2016 - Question 76
Gaseous Nitrogen at $$30^\circ C$$ is expanded through a converging nozzle from a total pressure of 0.5 MPa to a back pressure chamber.If the back pressure is increased from 0.1 MPa to 0.4 MPa in steps of 0.02 MPa, the trend in massflow rate through the nozzle
ISRO Scientist or Engineer Mechanical 2016 - Question 78
Critical to Stagnation Pressure ratio $$\left(\frac{P^*}{P_0}\right)$$ for an expansion process is
ISRO Scientist or Engineer Mechanical 2016 - Question 79
Match the items in column-1 and column-2 and choose the correct combination
ISRO Scientist or Engineer Mechanical 2016 - Question 80
A Pelton wheel turbine operates under a head of 125 m at a speed of 2000 rpm. To operate very close to the maximumefficiency, the mean diameter of the Pelton wheelis nearly
