Magnesium addition to cast iron increases its September 6, 2025 by Admin A. Corrosion resistance B. Creep strength C. Ductility and strength in tension D. Hardness ✅ The correct answer is option C.
Increasing sulphur content in pig iron tends to make it September 6, 2025 by Admin A. Soft B. Hard C. Tough D. Ductile & malleable ✅ The correct answer is option B.
A material having good damping property is likely to have September 6, 2025 by Admin A. Greater defect density B. Fine grained structure C. Lesser defect density D. High tensile strength ✅ The correct answer is option A.
Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at September 6, 2025 by Admin A. High vacuum B. Zero pressure C. 0°K D. Earth ✅ The correct answer is option B.
The suction and delivery pressure for a two stage compressor are 1 and 25 atm respectively. The intermediate stage pressure would be around __________ atm. September 6, 2025 by Admin A. 5 B. 10 C. 15 D. 20 ✅ The correct answer is option A.
For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be September 6, 2025 by Admin A. 100% indirect reduction B. 100% direct reduction C. 50-60% indirect reduction D. 30-40% indirect reduction ✅ The correct answer is option C.
Which of the following is the most elastic material? September 6, 2025 by Admin A. Plastic B. Glass C. Steel D. Rubber ✅ The correct answer is option C.
Fatigue strength of a material can not be increased by September 6, 2025 by Admin A. Cold working B. Hot working C. Shot peening D. Any of these ✅ The correct answer is option B.
The condition of diffraction from a crystal is given by September 6, 2025 by Admin A. nλ = 2d Sin θ B. λ = d Sin 2θ C. λ = 2d Sin 2θ D. nλ = d Sin θ ✅ The correct answer is option A.
The ratio of the shear stress to the principal stress on a principal plane is September 6, 2025 by Admin A. 0 B. 1 C. 1/2 D. 1/3 ✅ The correct answer is option A.