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This is an MCQ-based quiz on the topic of the First Law of Thermodynamics.
This includes the following:-
First Law for a Closed System
Energy
Enthalpy
Specific Heat at Constant Volume and Pressure and Control Volume
Mass Balance & Energy Balance in a Simple Steady Flow Process
The infinitesimal amount of work done on changing the length of a wire with tension T from L to L+dL is
A 1200 hp engine has a drive shaft rotating at 2000 RPM. Find the torque on the shaft?
A 1200 hp engine drives a car with a speed of 100 km/h. Find the force between the tires and the road?
The work done per unit volume on a magnetic material is dW=-Hdl where H is
Field strength
Magnetization field
Induced current
None of the mentioned
The work is equal to the integral of the product of an intensive property.
True
False
The surface tension acts to make the surface area of the liquid
Maximum
Minimum
Zero
None of the mentioned
A work of 2.5 kJ is delivered on a rod from a piston/cylinder where the air pressure is 500 kPa. What should be the diameter of cylinder to restrict the rod motion to maximum 0.5 m?
Work done in stretching a wire is given by
When a battery(12 V) is charged with 6 amp for 3 hours how much energy is delivered?
A force of 1.2 kN moves a car with 60 km/h up a hill. Find the power?
