401. Reactor used in the production of polyvinyl chloride (PVC) is made of
Nickel or glass lined steel
Aluminium
Tantalum
Lead
✅ The correct answer is option A.
Materials and Construction MCQs
402. Nickel (76%) and chromium (15%) alloys are termed as
Inconel
Monel
Aluminium bronzes
Brass
✅ The correct answer is option A.
403. Acetaldehyde is shipped in __________ drums.
Cast iron
Steel
Aluminium
Either B & C
✅ The correct answer is option D.
404. Bearings subjected to light load are made of
White metal
Phosphorous bronze
Monel
Silicon bronze
✅ The correct answer is option B.
405. For storing water and acid free benzol, use a __________ vessel.
Steel
Karbate
Stainless steel
None of these
✅ The correct answer is option A.
406. Which of the following is a low melting point metal?
Stainless steel
Wrought iron
Tin
Copper
✅ The correct answer is option C.
407. Rubber lined pumps can be used to pump
Caustic soda
Chlorinated brine
Hypochlorous acid
All of the above
✅ The correct answer is option D.
408. Most of the common metals have __________ crystal structure.
Cubic
Hexagonal
Orthorhombic
None of these
✅ The correct answer is option A.
409. Ceramic materials are
Organic in nature
Stronger in compression than in tension
Always amorphous in nature
Always bad heat conductors
✅ The correct answer is option B.
410. Hardest material so far found is
Diamond
Graphite
Carborundum
Pumice stone
✅ The correct answer is option A.