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SSC-JE - ME : Technical Quiz-11
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Question 1
Of the radiant energy 350W/m2 incident upon a surface 250W/m2 is absorbed, 60W/m2 is reflected and the remainder is transmitted through the surface. Workout the value for reflectivity for the surface material
Question 2
Coefficient of friction in rolling operation is given as µ. What is its relation with the draft?
Question 3
The instantaneous center of rotation of a rigid thin disc rolling on a plane rigid surface is located at
Question 4
A grinding wheel of 150 mm diameter is rotating at 3000 rpm. The grinding speed is _____.
Question 5
A Carnot engine operates between 27oC and 327oC. If the engine produces 300 kJ of work, what is the entropy change during heat addition?
Question 6
What is the relationship between elastic constants E, G and K?
Question 7
Which mechanism produces intermittent rotary motion from continuous rotary motion?
Question 8
The natural vibration equation is + 3x = 0. Find wn
Question 9
Which of the following is true about Lozenge joint?
Question 10
Laminar developed flow at an average velocity of 5 m/s occurs in a pipe of 10 cm radius. The velocity at 5 cm radius is
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