Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron. September 6, 2025 by Admin A. Manganese B. Phosphorous C. Magnesium D. Chromium ✅ The correct answer is option C.
Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position. September 6, 2025 by Admin A. Horizontal B. Vertical C. Inclined D. Any ✅ The correct answer is option D.
The most commonly used moderator in nuclear power plants is September 6, 2025 by Admin A. Graphite B. Light water C. Heavy water D. Berellium ✅ The correct answer is option A.
The material used for coating the welding electrode is termed as the September 6, 2025 by Admin A. Flux B. Slag C. Protective layer D. Binder ✅ The correct answer is option B.
A floating body oscillates about its __________ when it is displaced slightly. September 6, 2025 by Admin A. Centre of gravity B. Metacentre C. Centre of buoyancy D. Centre of pressure ✅ The correct answer is option B.
Methyl orange indicator turns September 6, 2025 by Admin A. Orange yellow in alkaline medium B. Orange yellow in acidic medium C. Colourless in acidic medium D. Colourless in basic medium ✅ The correct answer is option A.
Young’s modulus of a material is the measure of its September 6, 2025 by Admin A. Stiffness B. Malleability C. Creep resistance D. Tensile strength ✅ The correct answer is option A.
Cobalt – 60 is used as a source of __________ in medical therapy & industrial radiography. September 6, 2025 by Admin A. X-rays B. Γ-rays C. Α-rays D. Β-rays ✅ The correct answer is option B.
Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing 50 wt% B is September 6, 2025 by Admin A. R ln 2 B. -R ln 2 C. 3 R ln 2 D. -3R ln 2 ✅ The correct answer is option A.
Holes for rivetting purposes should be preferably made by September 6, 2025 by Admin A. Cutting torch B. Drilling C. Punching D. None of these ✅ The correct answer is option B.