Basic Terms in Chemical Engineering - Set 58 - ObjectiveBooks

Basic Terms in Chemical Engineering - Set 58

Practice Test: Question Set - 58

1. Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?

    (A) High speed steel
    (B) Stainless steel
    (C) Tungsten carbide
    (D) Superalloys

2. Nickel is a _________ material.

    (A) Ferromagnetic
    (B) Semi-conductor
    (C) Paramagnetic
    (D) Ferroelectric

3. Function of fusible plug in a boiler is to

    (A) Drain out water and sludge from the boiler during repair
    (B) Put off fire in the furnace when water level in the boiler falls to unsafe limit
    (C) Guard the boiler in case of abnormal rise in steam pressure
    (D) All (a), (b) & (c)

4. Optical activity is a/an _________ property.

    (A) Additive
    (B) Constitutive
    (C) Both (a) & (b)
    (D) Neither (a) nor (b)

5. The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

    (A) Resilience
    (B) Toughness
    (C) Ductility
    (D) Impact strength

6. High endurance limit of carburized machine parts is because of the fact that carburization

    (A) Suppresses any stress concentration produced in the parts
    (B) Enhances the yield point of the material
    (C) Introduces a compressive layer on the surface
    (D) Produces a better surface finish

7. "Encyclopaedia of Chemical Technology" has been

    (A) Authored by Kirk Othmer
    (B) Edited by Perry and Chilton
    (C) Edited by Kirk Othmer
    (D) Authored by Perry and Chilton

8. A material being tested for endurance strength is subjected to the _________ load.

    (A) Impact
    (B) Completely reversed
    (C) Dynamic
    (D) Static & dynamic

9. A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

    (A) -0.8
    (B) 0.8
    (C) +0.08
    (D) -0.24

10. Otto cycle used in spark ignition petrol engines is also known as the constant _________ cycle.

    (A) Volume
    (B) Pressure
    (C) Heat
    (D) None of these

11. _________ is not used as a material of construction in thermocouples.

    (A) Alumel
    (B) Rhodium
    (C) Constantan
    (D) Duralumin

12. For dynamic strain measurement, the Wheatstone bridge used is of _________ type.

    (A) Voltage sensitive null
    (B) Voltage sensitive deflected
    (C) Current sensitive deflected
    (D) None of these

13. The size of the tetrahedral void in the closest packing of atoms is _________ that of the octahedral void.

    (A) Equal to
    (B) Greater than
    (C) Less than
    (D) Either (a), (b) or (c); depends on the size of atom

14. CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

    (A) Specific fuel consumption is very low due to the use of heavy water
    (B) Fuel cost is much lower than that used in pressurized water or boiling water reactor
    (C) Heavy water is used both as coolant as well as moderator
    (D) Both 'b' & 'c'

15. Elimination of brittleness resulting from welding of saw blades is done by _________ of the welded portion.
    (A) Annealing
    (B) Toughening
    (C) Work hardening
    (D) Tempering

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