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ME Quiz - 14
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Question 1
Pressure intensifier increases the pressure in proportion to ________.
Question 2
The stream function in a two-dimensional flow field is given by Ψ = 3x – 4y +17xy. Then the magnitude of velocity at point (0,0) is:
Question 3
Which term defines the fluctuation of speed of a flywheel in terms of angular speeds?
Question 4
The efficiency of circumferential joint is 62%. Calculate the pitch of circumferential joint if diameter of rivets is 25mm.
Question 5
The temperature of solid surface changes from 27 °C to 627 °C. The emissive power changes would then confirm to the ratio ________.
Question 6
A particle is moving such that s = t3 – 6t2 + 18t + 9, where s is in metres and t is in second. The minimum velocity attained by the particle is
Question 7
A Carnot cycle refrigerator operates between 250 K and 300 K. Its coefficient of performance is
Question 8
In counter flow induced draft water and air enters the cooling tower
Question 9
An R-12 plant working on ideal vapour compression cycle between 0.14 MPa and 0.8 MPa develops 4 tonnes of refrigeration. The volume flow rate handled by the compressor is
Use the following data:
At P = 0.14 MPa, h1 = 236.05 kJ/kg, s1 = 0.9322 kJ/kg K, v1 = 0.12 m3/kg
At P = 0.8 MPa, h2 = 272.05 (superheated vapour), h3 = 93.42 kJ/kg (saturated liquid)
Use the following data:
At P = 0.14 MPa, h1 = 236.05 kJ/kg, s1 = 0.9322 kJ/kg K, v1 = 0.12 m3/kg
At P = 0.8 MPa, h2 = 272.05 (superheated vapour), h3 = 93.42 kJ/kg (saturated liquid)
Question 10
Which of the following is more commonly used firing order for six-cylinder stroke engine _________?
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Oct 21AE & JE Exams
