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ESE 2022 ME - Technical Quiz 24
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Question 1
The oil with specific gravity 0.8, dynamic viscosity of 8 × 10–3 Ns/m2 flows through a smooth pipe of 100 mm diameter and with Reynolds number 2100. The average velocity in the pipe is:
Question 2
Assigning the basic dimesion to mass, length, time and temperature respectively as M,L, T and (Temperature), what is the dimesion of entropy?
Question 3
A fluid is flowing over a flat plate. At distance of 8 cm from the leading edge, the Reynolds number is found to be 25600. The thickness of the boundary layer at this point is
Question 4
To get supersonic velocity of steam at nozzle exit with a large pressure drop across it, the duct must
Question 5
A reversed Carnot cycle working as a heat pump has a COP of 7. What is the ratio of minimum to maximum absolute temperatures?
Question 6
Which one of the following accessories is connected to the steam supply pipe line to maintain constant pressure?
Question 7
The core in the centrifugal casting is made of ________.
Question 8
Who said the following theorem?
Deflection of the point of application of an external force acting on a beam is equal to the partial derivative of the work of deformation with respect to this force.
Deflection of the point of application of an external force acting on a beam is equal to the partial derivative of the work of deformation with respect to this force.
Question 9
A wagon of mass 1000 kg moves with a velocity of 50 km/h on smooth horizontal rails. A mass of 250 kg is dropped into the wagon.The velocity (in km/h) with which the system now moves is ____.
Question 10
Angular acceleration of a link AB is given by
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