Which one of the following factors will not assist in getting high power output from a compression ignition engine
A.High compression ratio
B.Fine atomisation of fuel
C.High charge density
D.Large quantity of excess air
E.None of the above
Category: Mechanical Engineering Mcqs
While calculating the specific speed of double suction pump, the discharge to be considered is
A.Double of the actual discharge
B.Square of the actual discharge
C.Actual discharge
D.Half of actual discharge
E.Square root of actual discharge
A right balance meter cannot measure
A.Pressure
B.Flow
C.Mass flow rate
D.All of the above
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
