_______________ does not contain tin as an alloying material?
_______________ does not contain tin as an alloying material? A. Brass B. Pewter C. Solder D. Babbitt metal
_______________ does not contain tin as an alloying material? A. Brass B. Pewter C. Solder D. Babbitt metal
Cast iron is a ______________ material? A. Brittle B. Ductile C. Tough D. Malleable
Presence of even 0.005% of _____________ in copper makes it highly brittle, rendering it useless for wire-drawing? A. Oxygen B. Arsenic C. AntimonyD. Bismuth
_____________ is added in low carbon steel to raise its yield point? A. Sulphur B. Phosphorous C. SiliconD. Manganese
Age hardening is concerned with_________________? A. Copper B. BrassC. Duralumin D. Silver
Thermosetting polymers are_________________? A. Injection mouldedB. Cast molded C. Extruded D. None of these
A material is called ‘ductile’, if it can be__________________? A. Drawn into wires B. Hammered to a thin sheet C. Fractured without deformation D. Made lustrous by heating it
A material capable of undergoing large permanent deformation, when subjected to tension is termed as___________________? A. FriableB. Ductile C. Brittle D. None of these
Corrosion involves exchange of electrons in ____________ corrosion? A. Chemical B. ElectrochemicalC. Both A. & B. D. Neither A. nor B.
Brass tubes are used in the manufacture of tubes of evaporators used in sugar and salt industries, mainly because of its ______________________? A. High co-efficient of thermal expansion B. Low thermal conductivityC. High corrosion resistance D. All A., B. and…