The mean free path of a gas molecule increases with
A.increase in temperature
B.decrease in temperature
C.increase in density
D.increase in pressure
Category: Mechanical Engineering Mcqs
A Founeyron turbine is
A.Outward flow reaction turbine
B.Inward flow reaction turbine
C.Outward flow impulse turbine
D.Inward flow impulse turbine
E.None of the above
Springs are made of
A.Mild steel
B.Carbon steel
C.High speed steel
D.Stainless steel
E.Spring steel
The electrical conductivity of ferrites is
A.Less than that of ferromagnetic materials
B.Equal to that of ferromagnetic materials
C.Greater than that of ferromagnetic materials
D.Very high as compared to that of ferromagnetic materials
E.Very low as compared to that of ferromagnetic materials
Which act provides for medical care of workmen?
A.Industrial Disputes Act
B.Workmen’s Compensation Act
C.Employees State Insurance Act
D.Employees Provident Fund Act
E.All of the above
Compared to air helium is preferred for solar Brayton cycles because
A.of higher cycle efficiency
B.it has high heat transfer capability
C.it is inert
D.all of the above
The temperature of a gas is a measure of
A.the average kinetic energy of the gaseous molecules
B.the average distance between the molecules of the gas
C.The average potential energy of the molecules
D.None of the above
The critical temperature of carbondioside is 31.1?C. If the room temperature is 34.7?C, then carbondioxide at room temperature is
A.gas
B.wet vapour
C.vapour
D.superheated vapour
A system comprising a single phase is called a
A.Closed system
B.Open system
C.Isolated system
D.Homogeneous system
E.Heterogeneous system
