Second law of theromodynamics defines
A.Heat
B.Work
C.Enthalpy
D.Entropy
E.Internal energy
Category: Mechanical Engineering Mcqs
Which of the following measures the heat of combustion?
A.Bomb’s calorimeter
B.Thermostat
C.Beckmann’s thermometer
D.Refrigerator
Bearing suitable for fluctuating loads is
A.Bush bearing
B.Sleeve bearing
C.Ball bearing
D.Roller bearing
E.Needle roller bearing
Under the Apprenticeship Act
A.All industries have to necessarily train the Apprentices
B.Industries have to train Apprentices according to their requirement
C.Only industries owned by Government have to recruit apprentices
D.Only industries employing more than 500 workers have to recruit apprentices
E.None of the above
The Ackermann steering gear consists of a four bar mechanism with
A.Only one pair turning and three paris sliding
B.Only two pairs turning and low pairs sliding
C.Only three pairs turning and one pair sliding
D.All four pairs turning
E.All four pairs sliding
Sag is provided in overhead transmission lines so that
A.Repairs can be done easily
B.Corona can be reduced
C.Skia effect can be reduced
D.Safe tension is not exceeded
E.None of the above
If the wind is blowing with a 10 kilometer per hour the dominant heat loss mechanism(s) between the top cover plate of flat-plate solar collector and the ambient air is / are
A.convection
B.radiation
C.conduction
D.convection and radiation
The design of gate should be such as to
A.avoid erosion of cores and mould cavity
B.prevent scum, slag and eroded sand particles from entering the mould cavity
C.minimize turbulence and dross formation
D.all of the above
The principle on which a disappearing filamment type pyrometer works is known as
A.Kirchhoff’s law
B.Fourier’s law
C.Wien’s law
D.Peltier effect
E.Seeback effect
