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  • Question
  • Friction factor for fluid flow in pipe does not depend upon the


  • Options
  • A. pipe length.
  • B. pipe roughness.
  • C. fluid density & viscosity.
  • D. mass flow rate of fluid.

  • Correct Answer
  • pipe length. 


  • Chemical Engineering Basics problems


    Search Results


    • 1. Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

    • Options
    • A. 10-3
    • B. 103
    • C. 10-15
    • D. l015
    • Discuss
    • 2. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

    • Options
    • A. hard
    • B. soft
    • C. silicon carbide
    • D. aluminium oxide
    • Discuss
    • 3. Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

    • Options
    • A. yield strength
    • B. elastic limit
    • C. proportional limit
    • D. maximum point
    • Discuss
    • 4. Absolute zero pressure can be attained at a temperature of

    • Options
    • A. 0°C
    • B. 50°K
    • C. 0°R
    • D. none of these
    • Discuss
    • 5. Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

    • Options
    • A. A
    • B. l
    • C. A2
    • D. both 'a' & 'b'
    • Discuss
    • 6. Fog is an example of colloidal system of

    • Options
    • A. solid dispersed in gas.
    • B. solid dispersed in liquid.
    • C. liquid dispersed in gas.
    • D. gas dispersed in liquid.
    • Discuss
    • 7. The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

    • Options
    • A. parabolic
    • B. hyperbolic
    • C. straight line
    • D. none of these
    • Discuss
    • 8. The product out from a cupola is called

    • Options
    • A. wrought iron
    • B. pig iron
    • C. cast iron
    • D. none of these
    • Discuss
    • 9. In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that

    • Options
    • A. compared to the mass flow rate of cooling water, the rate of condensation of steam is invariably smaller.
    • B. maintaining vacuum on tube side is more difficult than that on the shell side.
    • C. water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam.
    • D. condenser can act as a storage unit for condensed steam.
    • Discuss
    • 10. Which one of the following is incombustible?

    • Options
    • A. H2
    • B. CCl4
    • C. C2H2
    • D. S
    • Discuss


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