Basic Principles of Chemical Engineering Calculations - Set 54 - ObjectiveBooks

Basic Principles of Chemical Engineering Calculations - Set 54

Practice Test: Question Set - 54

1. As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint.
    (A) Butt
    (B) Lap
    (C) Welded
    (D) None of these

2. Thermit welding is categorized as the __________ welding.
    (A) Forge
    (B) Fusion
    (C) Resistance
    (D) Arc

3. Often earing defects are found during deep drawing operation, because the
    (A) Surface finish of the sheet is poor
    (B) Sheet material has been given substantial spring back
    (C) Starting sheet has planer anisotropy due to its texture
    (D) Starting sheet has normal anisotropy due to its texture

4. Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and
    (A) Manganese
    (B) Silicon
    (C) Nickel
    (D) Chromium

5. Plants produce carbohydrates from the CO2 present in the atmosphere by
    (A) Polymerisation
    (B) Photochemical reaction
    (C) Oxidation
    (D) None of these

6. __________ is not used as the control rod material in a nuclear reactor.
    (A) Cobalt
    (B) Hafnium
    (C) Cadmium
    (D) Boron

7. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
    (A) Wetness
    (B) Mass flow rate
    (C) Both 'a' & 'b'
    (D) Neither 'a' nor 'b'

8. Which of the following can be manufactured using powder metallurgy techniques?
    (A) Brake linings
    (B) Bearings
    (C) Carbide tool tips
    (D) All 'a', 'b' and 'c'

9. __________ is not a heat treatment process.
    (A) Cyaniding
    (B) Parkerizing
    (C) Austempering
    (D) Martempering

10. Pick out the wrong statement about nucleate boiling.
    (A) Bubble generation is by expansion of entrapped gas/vapor at small cavities in the surface
    (B) Surface temperature is greater than the saturation temperature of the liquid
    (C) Heat transfer from the surface of the liquid is less than that in film boiling
    (D) The temperature is less than that of film boiling

11. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.
    (A) Impact strength
    (B) Percent elongation
    (C) Hardness
    (D) Both 'b' & 'c'

12. Screws are specified by their __________ diameters.
    (A) Minor
    (B) Major
    (C) Pitch
    (D) None of these

13. The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
    (A) Refrigerant cooling
    (B) Evaporator
    (C) Condenser
    (D) Throttling

14. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam.
    (A) Decreases
    (B) Increases
    (C) Remain same
    (D) May increase or decrease

15. Cupola produces __________ iron.
    (A) Pig
    (B) Cast
    (C) Wrought
    (D) Carbon free

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