The increase of temperature
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Category: Mechanical Engineering Mcqs
In case of belt conveyors, a tripper is used to
A.facilitate loading
B.facilitate unloading
C.prevent shock loading
D.prevent damage to belt
If a column fails due to buckling, it is likely to be a
A.Long column
B.Short column
C.Strut
D.Reinforced column
E.None of the above
The triple point for carbondioxide is at about -56.7 C and about 5 atm, pressure. It means that
A.When solid CO2 is exposed to 1 atm pressure it begins to change directly to gas
B.When CO2 is exposed to a below 5 atmosphere pressure only solid and liquid phase exist together
C.Below 57.7 C CO2 exists only in liquid form
D.Above 56.7 C CO2 exists only as a liquid
E.Mass transfer at triple point is maximum
A wankel engine is
A.Rotory engine
B.Reciprocating engine
C.Hybrid engine
D.Turbine engine
E.Jet engine
A heat-treated glass generally used in automobiles upon cracking bursts into
A.Sharp edged fragments
B.Small particles
C.Does not disintegrate
D.Either of the above
E.None of the above
Tranqil flow must always occur
A.At normal depth
B.Above normal depth
C.Below normal depth
D.Below critical depth
E.Above critical depth
In control cooling water system, chromates, phosphates and silicates are added to water
A.To prevent scale formation
B.To remove odour
C.To increase remove foreign particle
D.To inhibit corrosion
E.To prevent algae growth
An open system
A.Is a specified region where transfers of energy and/or mass take place
B.Is a region of constant mass and only energy is allowed to cross the boundaries
C.Cannot transfer either energy or mass to or from the surroundings
D.Has a mass transfer across its boundaries, and the mass within the system is not necessarily constant
E.None of the above
