When sulphur is to be removed from cast iron while melting the same in cupola, the flux used is
A.molasses
B.sodium carbonate with lime stone
C.zinc sulphate with lime stone
D.none of the above
Category: Mechanical Engineering Mcqs
A thermometer in the compressor discharge line
A.Confirms the flow of refrigerant
B.Indicates the efficiency of cycle
C.Helps in adjusting the compressor performance
D.Shows the heat of refrigerant leaving the cylinder on way to the condenser
E.None of the above
The angular velocity of seconds hand of a watch is
A.0.1047 sec-1
B.0.01745 sec-1
C.0.001745 sec-1
D.0.0001745 sec-1
E.0.00001745 sec-1
The process of polymerisation is associated with
A.Cast iron
B.High speed steel
C.Non-ferrous material
D.Non-metallic materials
E.Thermo-plastic
Wavelength is generally measured in
A.km
B.m
C.cm
D.mm
E.microns
Contribution of a growing production to economic growth consists in what is
A.Adds to consumption
B.Adds to production minus what it takes away from the national product in the form of consumption
C.Adds to saving and investment
D.Adds to reproducible resources
E.None of the above
For a fact be considered as information, it must relate to a thing or circumstance and be:
A.Quantitatives
B.Relevant
C.Objective
D.Added knowledge
E.All of the above
The numerical values of Young’s modulus of clasticity in ascending order for Aluminium, Bronze, Brass, Inconel and Muntz metal are given by
A.Muntz metal, Brass, Aluminium, Bronze, Inconel
B.Muntz metal, Aluminium, Bronze, Brass, Inconel
C.Inconel, Muntz metal, Aluminium, Bronze, Brass
D.Aluminium, Bronze, Muntz metal, Inconel, Brass
E.Aluminium, Bronze, Brass, Muntz metal, Inconel.
Which of the following standard can be used for defining length?
A.Bar standard
B.End standard
C.Light wave standard
D.Any of the above
E.None of the above
Micro-structure of a material is generally examined by
A.Naked eye
B.Microscope
C.Optical microscope
D.X-rays and electron diffraction
E.Spectroscope techniques
