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Chemical Engineering (Biochemical Engineering) Practice Test Questions
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Biochemical Engineering mainly deals with the design, construction, and advancement of unit processes that involve biological organisms (such as fermentation) or organic molecules (often enzymes) and has various applications in areas of interest such as biofuels, food, pharmaceuticals, biotechnology, and water treatment processes. (Source: Wikipedia)

Chemical Engineering (Biochemical Engineering) Practice Test Questions
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25 Questions

1. A closed stationery system consists of a 5 kg mass. During a certain process 50 kJ of work are done on the system and internal energy increased by 5000 J per kg. The total amount of heat exchange with the system is:
2. A shell-and-Tube exchanger is designed assuming design coefficient of 600. The prediction of the design coefficient reveal its value to be 400. What should be done by the designer:
3. If your eyes are to mutate and become sensitive to slightly shorter wavelengths than they are now, what portion of the spectrum would become visible:
4. If a system consists of two immiscible luiquids (such as CCL4 and CH3OH), how many phases are there:
5. A flow in which liquid particle has definite path of flow and don’t cross each other is called:
6. A 1000W heater is rated to operate at a direct current (DC) of 10A. If the heater is supplied alternating current (AC) for producing the same quantity of heat the value of current should be
7. Triphenylphosphine is often given the abbreviated formula PPh3. The correct name for Rh(PPh3)3 Cl is:
8. The wall of an oven consists of two layers of insulating bricks. In between the layers there is an air gap. The pressure of air gap will be:
9. The equilibrium constant for the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g) is K = 1.03 × 105 at 298.15 K. Calculate the standard reaction Gibbs energy at this temperature.
10. Preliminary design are ordinarily used as a basis for ……………………………….. whether further work should be done on the proposed process.
11. The maximum current will pass through:
12. A shell - and - tube heat exchanger is used to heat sugar solution by using steam. No data about the exchanger is given. Which film resistance is likely to control the overall heat transfer process:
13. Which one of the following is sodium thiosulfate:
14. Select the equation which relates the position of the end of the cable B to the position of block
15. Can one piece of equipment be treated as a set of several subsystems:
16. The flow rate of a liquid (density 1.26 gm/cm3) flowing under isothermal conditions in a pipe of length 1ft and inside diameter ft/min. What is the entrance length in feet? (1 inch for a pressure drop of 40psi is 0.00398)
17. If a control system should respond to long term errors, but not respond to sudden changes, what type of cont
18. For a counter-current heat exchanger the clean overall heat transfer coefficient is 500 W/m2.K and the overall fouling factor is 0.00035 m2 K/W. What will be the value of the design overall heat transfer coefficient:
19. The frictional resistance of a pipe varies approximately with _________________ of the liquid:
20. If y=f(x) is a linear equation then a definite integral can exactly be found by:
21. A thin sphere of copper, with its internal surface highly oxidized (e= 0.57), has a diameter of 4 inches. How small a hole must be made in the sphere to make an opening that will have an absorptivity of 0.99
22. Fouling factor is obviously__________ for a new heat exchanger and __________ with time as the solid deposits build up on the heat exchanger surface.
23. The lifting of a Helicopter is based on:
24. For beam loaded as shown in figure below, what will be the location of point from A where bending moment will change sign:
25. Dead Weight Tester is used for the calibration of:

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