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  • Question
  • The opening of a 200 mesh screen (Taylor series) is


  • Options
  • A. 0.0074 cm
  • B. 0.0074 mm
  • C. 0.0047 cm
  • D. 74 mili-microns

  • Correct Answer
  • 0.0074 cm 


  • More questions

    • 1. Which of the following is the most suitable for extraction in a system having very low density difference?

    • Options
    • A. Mixer-settler extractor
    • B. Centrifugal extractor
    • C. Pulsed extractor
    • D. Packed extraction tower
    • Discuss
    • 2. Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty?

    • Options
    • A. Sieve plate column
    • B. Bubble cap column
    • C. Randomly packed column
    • D. Wetted wall column
    • Discuss
    • 3. A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternery system containing twopairs of partially miscible liquids?

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 3
    • Discuss
    • 4. Which is the most suitable fertiliser for paddy?

    • Options
    • A. CAN
    • B. Ammonium sulphate
    • C. Ammonium nitrate
    • D. Superphosphate
    • Discuss
    • 5. Which is a catalyst promoter used in catalytic ammonia synthesis reaction?

    • Options
    • A. Al2O3
    • B. Cr2O3
    • C. K2O
    • D. MnO
    • Discuss
    • 6. Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?

    • Options
    • A. 1.5:1
    • B. 3.5:1
    • C. 10:1
    • D. 15:1
    • Discuss
    • 7. N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (molecular weight of urea = 60)

    • Options
    • A. 80%
    • B. 90%
    • C. 95%
    • D. 98%
    • Discuss
    • 8. Which of the following is not a colligative property?

    • Options
    • A. Osmotic pressure
    • B. Depression of freezing point
    • C. Lowering of vapor pressure
    • D. none of these.
    • Discuss
    • 9. Which of the following is a thermodynamic property of a system?

    • Options
    • A. Concentration
    • B. Mass
    • C. Temperature
    • D. Entropy
    • Discuss
    • 10. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?

    • Options
    • A. Vapor compression cycle using expansion valve.
    • B. Air refrigeration cycle.
    • C. Vapor compression cycle using expansion engine.
    • D. Carnot refrigeration cycle.
    • Discuss


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