A. Relieving excess pressure
B. Creating turbulence
C. Enhancing mixing rate
D. Avoiding vortex formation
Related Mcqs:
- Safety valves are provided in chemical equipments to guard against excessive_________________?
A. Temperature
B. Pressure/pressure fluctuation
C. Turbulence
D. Noise - Apex angle of conical heads used in the bottom heads of chemical process equipments is usually__________________?
A. 30°
B. 45°
C. 60°
D. 75° - Factor of safety (i.e., overdesign factor) in heat transfer equipments is about _____________ percent more than the actual/theoretical design factor?
A. 5-10
B. 15-20
C. 30-35
D. 35-40 - For high pressure process equipments/vessels, the connected nozzle should be____________________?
A. Welded
B. Screwed
C. Flanged
D. Brazed - Lug support is meant for supporting _______________ vessels?
A. Large horizontal cylindrical
B. Tall but empty
C. Small
D. Thick walled tall - Accidents in chemical plants are mostly due to___________________?
A. Inadequate equipment design
B. Faulty operating procedures
C. Improper layout of the equipments
D. Failure of equipments - The safe distance of habitation from a hazardous chemical plant (TLV of its product < 1000 ppm) should be about ______________ kms?
A. 1
B. 5
C. 15
D. 25 - Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if___________________?
A. Plain carbon steel and cast iron parts are used
B. Wall thickness is > 30 mm
C. Material of construction is high alloy steel
D. Both B. & C. - Fresh water carrying pipelines in chemical industries are coloured with _______________ color?
A. Sea green
B. Brown
C. Yellow
D. Red - Welded joint efficiency in the design of chemical process equipment is taken as_________________?
A. 0.55
B. 0.75
C. 0.85
D. 0.95