In a Diesel engine the function of a fuel injector is
A.To mix fuel and air
B.To ignite air-fuel mixture
C.To provide flame front for ignition
D.To spray atomized fuel in the cylinder
E.To provide adequate air fuel mixture for combustion
Category: Mechanical Engineering Mcqs
Which cheque can be encashed by any one
A.Account payee cheque
B.Crossed cheque
C.Bearer cheque
D.none of the above
Die casting dies are generally made of
A.cast iron
B.aluminium alloys
C.alloy steels
D.bronze
The material for wire drawing should have
A.High hardness
B.High ductility
C.High melting point
D.Low boiling point
E.Stiffness
The Carnot refrigeration cycle
A.transfers energy from a low level of temperature to a high level of temperature
B.requires the addition of external work for its operation
C.performs the reverse effect of the heat engine
D.all of the above
The price of diamonds is higher than the price of wheat because
A.Diamonds are much heavier than wheat
B.Diamonds are more useful than wheat
C.The total stock of diamonds is more useful than the total stock of wheat
D.Diamonds cannot be grown whereas wheat can be grown
E.Enough people have a higher subjective value of diamonds relative to wheat
In a velocity compounded steam turbine, as steam moves along moving and guide blades
A.pressure is low and velocity gradually decreases
B.pressure gradually increases and velocity is low
C.both pressure and velocity gradually decrease
D.Both pressure and velocity gradually increase.
In case of thin cylindrical shell with hemispherical ends
A.The thickness of cylindrical is more than that of spherical ends
B.The thickness of cylinderical shell is less than that of spherical ends
C.The thickness of cylindrical is same as that of spherical ends
D.The thickness of cylindrical shell is double of the thickness of spherical shell
E.None of the above
A layer of fibrous material like jute or hessian type provided over metallic sheath on a cable is known as
A.Armouring
B.Bedding
C.Laying
D.Cover
E.None of the above
A dadial follower is
A.One that reciprocates in the guides
B.One that oscillates
C.One in which the follower translates along an axis passing through the cam centre of rotation
D.One in which the axis of the following movement is displaced from the cam centre
E.None of the above
