1702. Hastelloy comprises of
Copper and tin
Copper and nickel
Molybdenum and nickel
Lead and tin
✅ The correct answer is option C.
1704. Polymorphism is not exhibited by
Carbon
Iron
Phosphorous
None of these
✅ The correct answer is option D.
1706. Glass lined vessels are not used for handling
Dilute HNO₃
Dilute HNO₃
Dilute HCI
Hydroflouric acid
✅ The correct answer is option D.
1708. Which of the following is the most prone to atmospheric corrosion?
Silver
Iron
Tin
Copper
✅ The correct answer is option B.
1710. How many molecules per unit cell are there in a face centred cubic lettice?
2
4
6
8
✅ The correct answer is option B.
1712. When the steel is subjected to normalising, its __________ decreases.
Yield point
Ductility
Ultimate tensile strength (UTS)
None of these
✅ The correct answer is option B.
1714. The behaviour of visco-elastic material is time dependent. This behaviour is commo in __________ materials.
Non-crystalline solid
Crystalline
Rubberry
Non-crystalline organic polymeric
✅ The correct answer is option D.
1690. Biological shield in a nuclear power reactor is made of
Concrete
Steel
Cadmium
Zircalloy
✅ The correct answer is option A.
1692. Steel balls for ball bearings are generally made of __________ steel.
Cast
Stainless
Free carbon
Carbon chrome
✅ The correct answer is option D.
1693. Which of the following will have the highest melting point?
Pig iron
Mild steel
Wrought iron
High carbon steel
✅ The correct answer is option C.