Silicon when added to copper improves September 14, 2025 by Admin machinability hardness hardness and strength strength and ductility ✅ The correct answer is option C.
The type of space lattice found in gamma-iron is September 14, 2025 by Admin face centred cubic space lattice body centred cubic space lattice close packed hexagonal space lattice none of these ✅ The correct answer is option A.
Which of the following has a fine gold colour and is used for imitation jewellery? September 14, 2025 by Admin Silicon bronze Aluminium bronze Gun metal Babbit metal ✅ The correct answer is option B.
The cupola is used to manufacture September 14, 2025 by Admin pig iron cast iron wrought iron steel ✅ The correct answer is option B.
The heat treatment process used for softening hardened steel is September 14, 2025 by Admin carburising normalising annealing tempering ✅ The correct answer is option D.
Closed packed hexagonal space lattice is found in September 14, 2025 by Admin zinc, magnesium, cobalt, cadmium, antimony and bismuth gamma-iron, aluminium, copper, lead, silver and nickel alpha-iron, tungsten, chromium and molybdenum none of the above ✅ The correct answer is option A.
The electric process of steel making is especially adopted to September 14, 2025 by Admin alloy and carbon tool steel magnet steel high speed tool steel all of these ✅ The correct answer is option D.
Cast iron is a September 14, 2025 by Admin ductile material malleable material brittle material tough material ✅ The correct answer is option C.
The hardness of steel increases if it contains September 14, 2025 by Admin pearlite ferrite cementite martensite ✅ The correct answer is option C.
A material is said to be allotropic, if it has September 14, 2025 by Admin fixed structure at all temperatures atoms distributed in random pattern different crystal structures at different temperatures any one of the above ✅ The correct answer is option C.