Chemical Engineering MCQ - Set 45 - ObjectiveBooks

Chemical Engineering MCQ - Set 45

Practice Test: Question Set - 45

1. Methyl orange indicator turns
    (A) Orange yellow in alkaline medium
    (B) Orange yellow in acidic medium
    (C) Colorless in acidic medium
    (D) Colorless in basic medium

2. Limestone addition in the blast furnace is done to flux __________ present in the raw materials.
    (A) SiO2
    (B) Al2O3
    (C) MnO2
    (D) P

3. Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.
    (A) Invar
    (B) Hastelloy
    (C) Duralumin
    (D) Monel metal

4. Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
    (A) Parting
    (B) Synthetic
    (C) Loam
    (D) Dry

5. Titanium is produced by __________ of Ti Cl4.
    (A) Electrolytic reduction
    (B) Calcium reduction
    (C) Magnesium reduction
    (D) Thermal dissociation

6. For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
    (A) 100% indirect reduction
    (B) 100% direct reduction
    (C) 50-60% indirect reduction
    (D) 30-40% indirect reduction

7. Atomic __________ is a whole number for an element.
    (A) Number
    (B) Weight
    (C) Radius
    (D) None of these

8. Tip of the match stick contains a mixture of
    (A) K + S
    (B) K + S + K2Cr2O7
    (C) S + K2Cr2O7 + White P
    (D) None of these

9. Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.
    (A) Hexagonal close, packed (hcp)
    (B) Face centered cubic (fcc)
    (C) Body centered cubic (bcc)
    (D) Simple cubic

10. Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V - b) = RT, depends upon its
    (A) Pressure & temperature
    (B) Pressure & specific volume
    (C) Temperature & specific volume
    (D) Temperature only

11. An abrupt and sudden fall in the reading of barometer is an indication of the
    (A) Storm
    (B) Rain
    (C) Clear weather
    (D) Cold wave

12. The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)
    (A) 4.4
    (B) 5.6
    (C) 8.4
    (D) 2.4

13. For the Stoke's law to be valid in the case of a falling sphere in a fluid, the
    (A) Reynolds number (based on sphere diameter) should be < 1
    (B) Flow around the sphere should be in turbulent region
    (C) Sphere must be metallic
    (D) Fluid density should be constant

14. The swift cup test evaluates the following property of a sheet metal.
    (A) Stretchability
    (B) Drawability
    (C) Bendability
    (D) None of these

15. Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be
    (A) Wet
    (B) Saturated
    (C) Superheated
    (D) None of these

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