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- Question
A typical ceiling fan would be best described as a(n)
Options- A. radial flow impeller
- B. axial flow impeller
- C. intermig impeller
- D. Rushton turbine
- Correct Answer
- axial flow impeller
- 1. Which of the enzyme combination is commercially used for the removal of oxygen?
Options- A. Glucose oxidase-cellulase
- B. Glucose oxidase-catalase
- C. Glucose oxidase-lactase
- D. All of these Discuss
- 2. The radius of the filter with a depth of 14 cm required for a volumetric airflow rate of 10 m3/min is approximately
Options- A. 1.6 m
- B. 0.6 m
- C. 3
- D. 6 m Discuss
- 3. The volume of liquid (VL) in a cylindrical reactor can be calculated from the liquid height (HL) and tank diameter (Dt) using the following equation
Options- A. VL = 4/3 x ? x HL x Dt3/8
- B. VL= HL x ? x Dt2/4
- C. VL= HL x ? x Dt2
- D. VL = 4 x ? x Dt2 Discuss
- 4. In sterilization process, spore of which of the following organism is considered as control?
Options- A. Bacillus subtilis
- B. Clostridium botulinum
- C. Bacillus stearothermophilus
- D. Aspergillus niger Discuss
- 5. The deviation from ideal plug flow due to axial mixing can be described by the
Options- A. dispersion model
- B. Langmuir model
- C. Friedlander model
- D. Pasceri model Discuss
- 6. Small propellers turn at the speed of either
Options- A. 20 or 150 rpm
- B. 150 or 300 rpm
- C. 400 or 800 rpm
- D. 1150 rpm or 1750 rpm Discuss
- 7. The oxygen transfer rate in a bioreactor will increase if
Options- A. oil is added
- B. antifoam is added
- C. detergent like molecules are added
- D. increase in the reactor temperature Discuss
- 8. Lysozyme
Options- A. catalyses hydrolysis of ?-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptideoglycan
- B. catalyses hydrolysis of ?-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptideoglycan
- C. catalyses hydrolysis of ?-1-4 linkages between N-diacetyl muranic acid and N-diacetyl glucosamine in peptideoglycan
- D. all of the above Discuss
- 9. The intraparticle mass transfer resistance can affect the rate of enzyme reaction, if enzymes are immobilized by
Options- A. copolymerization or microencapsulation
- B. crosslinking using multifunctional reagents
- C. adsorption
- D. all of the above Discuss
- 10. The maximum desirable limit Bureau of Indian Standards (BIS) of lead in the drinking water is
Options- A. 0.05 mg/l
- B. 0.09 mg/l
- C. 0.1 mg/l
- D. 1.0 mg/l Discuss
More questions
Correct Answer: Glucose oxidase-catalase
Correct Answer: 0.6 m
Correct Answer: VL= HL x ? x Dt2/4
Correct Answer: Bacillus stearothermophilus
Correct Answer: dispersion model
Correct Answer: 1150 rpm or 1750 rpm
Correct Answer: detergent like molecules are added
Correct Answer: catalyses hydrolysis of ?-1-4 linkages between N-acetyl muranic acid and N-acetyl glucosamine in peptideoglycan
Correct Answer: copolymerization or microencapsulation
Correct Answer: 0.05 mg/l
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