Basics of Chemical Engineering Concepts MCQ - Set 12 - ObjectiveBooks

Basics of Chemical Engineering Concepts MCQ - Set 12

Practice Test: Question Set - 12

1. Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)
    (A) H
    (B) H/2
    (C) H/4
    (D) H/6

2. Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are
    (A) Cobalt, chromium & tungsten
    (B) Cobalt, chromium & nickel
    (C) Molybdenum, tungsten & chromium
    (D) Cobalt, zirconium & molybdenum

3. Austempering process results in the formation of __________ structure.
    (A) Martensitic
    (B) Bainitic
    (C) Carburized
    (D) Stressed

4. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
    (A) Insulator for heat & electricity transmission
    (B) Ferritic
    (C) Behave like paramagnetic materials
    (D) Superconductor

5. Good design of the casing of a centrifugal pump aims at minimizing the
    (A) Cavitation
    (B) Frictional losses
    (C) Kinetic energy loss
    (D) Static head

6. Oxygen cylinders used for autogenous (cutting/welding) purposes are
    (A) Seamless & made of steel
    (B) Heat treated before use
    (C) Made by sand casting
    (D) Welded steel cylinders

7. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
    (A) 159
    (B) 1837
    (C) 2537
    (D) 10000

8. Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is
    (A) 5CaO. 3 Al2O3
    (B) 3CaO. Al2O3
    (C) 3CaO. SiO2
    (D) 2CaO. SiO2

9. Matte smelting is used in the extraction of
    (A) Lead
    (B) Zinc
    (C) Aluminium
    (D) Copper

10. Which of the, following is not associated with the functioning of a petrol engine?
    (A) Compression ignition system
    (B) Spark plug
    (C) Carburettor
    (D) Otto cycle

11. Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
    (A) Entropy
    (B) Pressure
    (C) Volume
    (D) Heat

12. The pressure outside a bubble/droplet of liquid is __________ the internal pressure.
    (A) Greater than
    (B) Less than
    (C) Equal to
    (D) Unpredictable; depends on the bubble size

13. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
    (A) Flanged iron
    (B) Collar
    (C) Flexible
    (D) Expansion

14. _________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.
    (A) Collar
    (B) Flanged
    (C) Bell and Spigot
    (D) Expansion

15. A dummy activity is used in PERT network to describe the
    (A) Precedence relationship
    (B) Resource idleness
    (C) Resource restriction
    (D) Necessary time delay

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