Which of the following can have positive or negative charge?
A.Electron
B.Iron
C.Hole
D.Neutron
E.Isotope
Category: Engineering Materials Mcqs
Limestone is added in blast furnace to flux
A.Silicon xoide
B.Carbon
C.MnO2
D.Sulphur
E.None of the above
The properties of cast iron are regulated by
A.The composition of raw material
B.Heating temperature
C.Heat treatment
D.Percentage of carbon present
E.Control of amount, type, size and distribution of various carbon formations
Age hardening is generally applicable to
A.Cast iron
B.Medium carbon steels
C.High alloy steels
D.Alloys of aluminium, magnesium, nickel etc
E.Alloys of chromium, vanadium etc
Thermoplastic and thermoset polymers differ in
A.Glass transition temperature
B.Thermal behaviour
C.Mechanical behaviour
D.All of the above
Cadmium sulphide cell is a
A.Photo conductive cell
B.Solar cell
C.Photovoltaic cell
D.Thermocouple
E.Photo emissive cell
Which of the following alloy does not contain tin?
A.Gun metal
B.Phosphor bronze
C.Fusible plug material
D.White metal
E.All of the above
Which process is used for joining parts or materials?
A.Tumbling
B.Parkerizing
C.Swaging
D.Extruding
E.Sintering
Lead is used for joining pipes made of
A.Cold iron steel
B.Cast iron
C.Concrete
D.Asbestos cement
E.Vitrified clay
The limiting load beyond which the material no longer behaves elastically is known is
A.Breaking load
B.Limiting load
C.Load bearing capacity
D.Plastic limit
E.Elastic limit
