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- Question
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.
- Correct Answer
- water velocity can be increased conveniently to increase the overall heat transfer co-efficient because of its lower specific volume compared to steam.
- 1. The product out from a cupola is called
Options- A. wrought iron
- B. pig iron
- C. cast iron
- D. none of these Discuss
- 2. 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
- 3. 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
- 4. 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. Discuss
- 5. Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
Options- A. 10-3
- B. 103
- C. 10-15
- D. l015 Discuss
- 6. Which one of the following is incombustible?
Options- A. H2
- B. CCl4
- C. C2H2
- D. S Discuss
- 7. __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.
Options- A. Beryllia
- B. Zirconia
- C. Alumina
- D. Magnesia Discuss
- 8. Machinability of hard alloys and tool steels is improved by
Options- A. spherodising
- B. annealing
- C. tempering
- D. normalising Discuss
- 9. If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.
Options- A. critical
- B. breeder
- C. fertile
- D. heterogenous Discuss
- 10. Maxwell's thermodynamic relations applies to the
Options- A. chemical systems in equilibrium.
- B. mechanical systems in equilibrium.
- C. irreversible thermodynamic processes.
- D. reversible thermodynamic processes. Discuss
Chemical Engineering Basics problems
Search Results
Correct Answer: cast iron
Correct Answer: parabolic
Correct Answer: liquid dispersed in gas.
Correct Answer: pipe length.
Correct Answer: 10-3
Correct Answer: CCl4
Correct Answer: Alumina
Correct Answer: annealing
Correct Answer: breeder
Correct Answer: chemical systems in equilibrium.
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