351. The largest consumption of zinc for alloys is in the making of
Bearing metal
Brasses
Brazing solder
Die casting alloys
✅ The correct answer is option B.
Materials and Construction MCQs
352. Cold work tool steel should have
High toughness
Poor hardenability
High wear resistance
All of the above
✅ The correct answer is option C.
353. Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and
Moving mercury and graphite
Graphite and moving mercury
Moving mercury and carbon
Moving mercury and crimped steel wire
✅ The correct answer is option B.
354. 100% H₂SO₄ at 30°C can’t be stored in a vessel made/lined with
Cast iron and high silicon iron
Mild steel and stainless steel
Aluminium, tin and rubber
Teflon, glass and porcelain
✅ The correct answer is option C.
355. Galvanised iron is
Harder
Protected from rusting
Alumina coated iron
None of these
✅ The correct answer is option B.
356. Which of the following is the easiest to bend?
Steel
Stainless steel
Cast iron
Wrought iron
✅ The correct answer is option D.
357. Hydrocyanic acid is not shipped in
Cast iron vessels
Steel cylinders
Aluminium containers
Monel drums
✅ The correct answer is option A.
358. The material of construction of bearings is
Cast iron
Babbit metal
Pig iron
Steel
✅ The correct answer is option B.
359. The fermentor used for the production of ethyl alcohol from molasses is made of
Wood
Concrete
Copper bearing steel
Procelain
✅ The correct answer is option C.
360. Carbon tetrachloride can be stored in a storage vessel made of
High silicon iron (14% Si)
Tin
Stainless steel
All of the above
✅ The correct answer is option D.