A right balance meter cannot measure
A.Pressure
B.Flow
C.Mass flow rate
D.All of the above
Category: Mechanical Engineering Mcqs
According to the Kinetic theory of gases the collision between the molecules are assumed to be
A.Perfectly elastic
B.Perfectly inelastic
C.50% elastic
D.Partly elastic
E.Partly inelastic
An imaginary curve drawn through a flowing fluid in such a way that the tangent to it at any point gives the direction of the velocity of flow at that point, is known as
A.Flow-contour
B.Line of flow
C.Flow line
D.Path line
E.Streak line
For the same maximum pressure and heat input the least efficient cycle is
A.Brayton
B.Otto cycle
C.Diesel cycle
All of the following pollutants affect heart EXCEPT :
A.Cadmium
B.Arsenic
C.Lead
D.Carbon monoxide
A Carnot refrigerator operates between 300.3 K and 273 K. The fraction of cooling effect required as work input is
A.20%
B.10%
C.50%
D.Not possible to find with the data
Total sulphur content in a diesel fuel oil must not exceed
A.1%
B.0.50%
C.0.10%
D.0.05%
E.0.01%
Which one of the following is known as trarmel?
A.A pair of steel legs joined by a screw and nut
B.A steel bar and two sliding legs which can be adjusted
C.A divider with a spring
D.None of the above
In a nozzle if back pressure is equal to inlet pressure
A.no flow occurs
B.maximum flow occurs
C.flow is subsonic in diverging section
D.flow is supersonic in converging as well as supersonic sections
Normally the colour of exhaust from a diesel engine is
A.black
B.white
C.yellow
D.reddish
