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For the following questions answer them individually
On a ladder resting on a smooth ground and leaning against vertical wall, the force of friction will be:
For a given steam temperature of $$850^\circ$$ C and vacuum of 0.1 kg/$$cm^2$$ absolute, the Rankine cycle efficiency will be maximum when steam pressure is:
In a two-fluid heat exchanger, the inlet and outlet temperature of the hot fluid are 65°C and 40°C respectively. For the cold fluid, these are 15°C and 42°C. The heat exchanger is a:
If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and the floor is equal to:
A spherical vessel with an inside diameter of 2 m is made of material having an allowable stress in tension of 500 kg/$$cm^2$$. The thickness of a shell to withstand a
pressure of 25 kg/$$cm^2$$ should be:
A pump delivers water at a rate of 0.025 $$m^3$$/s against a head of 30 m. If the overall efficiency of the pump is 75%, the power required by the pump is:
