Which type of pump is preferred for pumping lubricating oil in automobile
A.Reciprocating type
B.Open impeller type
C.Centrifugal pump with impeller shrouded on one side only
D.Centrifugal pump with impeller shrouded on both sides
E.Gear pump
Category: Mechanical Engineering Mcqs
Thermodynamic processes are those
A.Where a difference is observed in any macroscopic property of the system between different times or state
B.Where a difference is observed in any microscopic property of the system between different times or state
C.Which occurs in the direction of an intensive property or driving force contained within the system
D.Which require an agency outside the system to force the process
E.None of the above
The cycle of life, death and decay involving organic nitrogeneous matter is called
A.The sulphur cycle
B.The nitrogen cycle
C.The carbon cycle
D.The hydrological cycle
E.None of the above
A mould which has good erosion resistance to metal flow and is also collapsible is
A.green sand mould
B.skin dry sand mould
C.dry sand mould
D.none of the above
Which of the following is not a high pressure boiler?
A.Loeffler
B.Lancashire coiler
C.Velox boiler
D.La Mont boiler
E.None of the above
A ductile fracture is characterized by
A.Rapid rate for crack propagation
B.Negligible deformation
C.Fragmentation into more than two pieces
D.Appreciable plastic deformation prior to propagation of crack
E.None of the above
The maximum temperature in a gas turbine is of the order of
A.700?C
B.1000?C
C.1500?C
D.2000?C
E.2500?C
A pirani gauge is used to measure
A.Pressures above 100 kg/cm2
B.Pressure upto 100 kg/cm2
C.Atmospheric pressure
D.Very low pressures
E.All pressures
Preheating of material to be welded is necessary in case of
A.Carbon steel
B.Stainless steel
C.High speed steel
D.Cast iron
E.Non-ferrous materials
