Which Material Used in Chemical Plant Multiple Choice Questions - Set 26 - ObjectiveBooks

Which Material Used in Chemical Plant Multiple Choice Questions - Set 26

Practice Test: Question Set - 26

1. Residual magnetism in steel for magnets is increased by the addition of
    (A) Nickel
    (B) Cobalt
    (C) Tungsten
    (D) Chromium

2. Brine (15% concentration) can be stored in a vessel made of
    (A) Monel
    (B) Karbate
    (C) Cast iron
    (D) None of these

3. The maximum percentage of chromium that can be added to steel is about
    (A) 12
    (B) 18
    (C) 24
    (D) 30

4. Which of the following is not used as the ceramic material in ‘cermets’?
    (A) Silicides
    (B) Oxides
    (C) Carbides
    (D) Nitrides

5. The hardest material just prior to diamond in Mho's scale is
    (A) Topaz
    (B) Carborundum
    (C) Corundum
    (D) Calcite

6. Percentage of silver in German silver is
    (A) 5
    (B) 10
    (C) 20
    (D) 0

7. Which of the following is not an alloy of nickel and chromium?
    (A) Inconel
    (B) Hastelloy
    (C) Nimonic alloys
    (D) Duralumin

8. Invar contains the highest percentage of
    (A) Vanadium
    (B) Iron
    (C) Tungsten
    (D) Cobalt

9. Cast iron has very high
    (A) Compressive strength
    (B) Ductility
    (C) Shock resistance
    (D) Resistance to brittleness

10. Brinell Hardness Number (BHN) for talc is approximately in the range of
    (A) 1-5
    (B) 20-30
    (C) 100 -150
    (D) 200 - 250

11. Concrete tank can be used to store
    (A) Alum
    (B) Ferrous sulphate
    (C) Sulphuric acid
    (D) Saturated brine

12. Aqueous nitric acid is stored in
    (A) Steel drum
    (B) Stainless steel vessel
    (C) Cast iron vessel lined with acid-proof masonry brick
    (D) Cast iron vessel

13. Zinc is not used
    (A) For producing zinc base die casting alloys
    (B) In its oxide form as pigments
    (C) As anode for corrosion prevention in boiler
    (D) As an alloying element in various bronzes

14. Urea autoclave is made of
    (A) Cast iron
    (B) Refractory blocks
    (C) Stainless steel
    (D) Lead lined steel

15. Kel-F is a material, which is
    (A) Chemically known as Polychlorotrifluoroethylene (PTFE)
    (B) Having excellent chemical & high temperature resistance (upto 200°C)
    (C) Having elastomeric properties
    (D) All (a), (b) and (c)

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