Which of the following is an indirect method of pressure measurement?
A.Mcleod gauge
B.Thermal conductivity gauge
C.Ionisation gauge
D.Radioactive vacuum gauge
E.All of the above
Category: Mechanical Engineering Mcqs
Identify the incorrect statement. Apparent shear forces
A.Can never occur in frictionless fluid regardless of its motion
B.Can never occur when the fluid is at rest
C.Depend upon cohesive forces
D.Depend upon molecular interchange of momentum
E.May occur owing to cohesion when the fluid is at rest
Under progressive tax
A.the tax rate goes on increasing with an increase in the level of income
B.the tax rate is constant
C.the tax rate goes on decreasing with an increase in the level of income
D.the tax rate is inversely proportional to the net income
When the lower temperature is fixed, the COP of a refrigerating machine can be improved by
A.Operating the machine at higher speeds
C.Raising the higher temperature
D.Lowering the higher temperature
E.None of the above
During compression in a vapour compression cycle of the refrigerant is super heated
A.C.O.P. is reduced
B.C.O.P. is increased
C.Work done is reduced
D.Refrigerating effect is reduced
E.None of the above
In naturally aspirated engine the pressure inside cylinder at the end of suction stroke is
A.Less than atmospheric
B.Same as atmospheric
C.More than atmospheric
D.Depends on atmospheric conditions
E.None of the above
Porous materials generally
A.Absorb most of the sound
B.Reflect entire sound
C.Transmit sound
A stepped notch is
A.A notch of varying shapes along the line of flow
B.Semi-elliptical in section
C.A combination of triangular and a circular section
D.A combination of rectangular notches of different sizes
E.A combination of triangular notches of different sizes
Which of the following Bourdon tube material can be used for very high pressures?
A.Phosphor bronze
B.Stainless steel
C.Alloy steel
D.Beryllium copper
E.K-monel
In case of broad gauge track the distance between the rails is
A.0.762 metre
B.1.0 metre
C.1.562 metre
D.1.676 metre
