Q1. Affinity law
▶️The affinity laws for pumps/fans are used in hydraulics, hydronics and/or HVAC to express the relationship between variables involved in pump or fan performance and power. They apply to pumps, fans, and hydraulic turbines
Capacity q varies with n
∆H varies with n²
Power p varies with n³
Q 2 . Why Rotameter not used to find velocity of aeroplane
▶️because it is used to measure flow of fluid in vertical position . can not used in horizontal .
Q 3. Assumptions of Bernoulli equation
▶️steady flow
Incompressible flow
Flow must be Irrotational
Q 4. Lmtd curve when one fluid evaporate and when one codensate which type of flow counter or co will use?
▶️ any one can be used because same delta T or same heat transfer area required.
Q 5. Tube pitch
▶️ the center to centre distance between two tube is called as tube pitch
Q 6. Which type of pump most commonly used in industry
▶️ Centrifugal pumps: These are the most common type of pump used in the chemical industry. They are highly efficient pumps, simple in design and operation, and generally less expensive than other types of pumps
Q6(a)- for high viscous fluid which pump is used?
▶️ gear pump
Q 7. What do you know about uop?
▶️ Honeywell UOP, is a multi-national company developing and delivering technology to the petroleum refining, gas processing, petrochemical production, and major manufacturing industries.
It’s ranked in top 500 fortune company.
Q8. Structure of ZnS
▶️ Sphalerite-fcp by anions and 1/2 tetrahedralvoids by cations
Wurtzite- hcp
Q9. Low pressure to high pressure fluid flow example
▶️In ventutimeter from throat to full pipe diameter or diverging section
Q10. Why is it possible?
▶️ Loss in pressure head is compensated by increase in kinetic head and the fluid with kinetic energy keeps flowing