An ideal flow of any liquid must fulfil
A.Newton’s second law of motion
B.Bernulli’s theorem
C.The Newton’s law of viscosity
D.Law of conservation of energy
E.Countinuity equation
Category: Engineeeing Mcqs
Which braking system is not used in case of earth moving machinery?
A.Pneumatic braking system
B.Hydraulic braking system
C.Vacuum braking system
D.Mechanical braking system
A thermometer in vapour compression system is installed in the main line close to the compressor
A.As it helps the operator to adjust compressor for greatest efficiency
B.As temperature indicates whether liquid or vapour refrigerant is going to compressor
C.As temperature helps in calculating the coefficient of performance
D.As the performance of other units of the cycle can be controlled
E.None of the above
Which of the following road offers maximum resistance to automobiles?
A.Wood paving
B.Macadam
C.Well rolled gravel
D.Loose sand
A pure substance at its triple point
A.exists in gas liquid and solid phases simultaneously
B.changes directly from solid to vapour
C.loses phase distinction between liquid and vapour
D.behaves as an ideal gas
A Kaplan turbine is suitable for
A.High head low discharge
B.High head high discharge
C.Low head low discharge
D.Low head high discharge
E.None of the above
In case of carbondioxide moulding, the binder used is generally
A.sodium silicate
B.china clay
C.coal dust
D.graphite
Eutectic is
A.a phase transformation in which all the liquid phase transforms on cooling to two solid phases simultaneously
B.A phase transformation which occurs above the glass transition temperature
C.a solid solution of one component in another
D.None of the above
The maximum efficiency of a scres jack having square threads and friction angle of 30 degree will be
A.9%
B.11%
C.20%
D.33%
E.5%
In a thermocouple, the potential between the two junctions is due to the temperature gradient along the conductors in the circuit. This effect is named as
A.Peltier’s effect
B.Thomson’s effect
C.Seebeck effect
D.none of the above
