What are the some common causes of control valve noise?

580

---

Explain the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers?

587

---

Explain the significance of the angle of repose holds in the chemical industry?

648

---

Explain how instrument air is continually supplied in process plant?

656

---

Explain how can you keep our seawater used for heat rejection clean before entering our heat exchangers?

557

---

What is critical radius of insulation?

603

---

Why should a magnesium ribbon be cleaned before burning in air?

555

---

Explain the working of a spray condenser?

597

---

Define octane number?

561

---

What is a black body?

703

---

Why is respiration considered as an exothermic reaction? Explain?

545

---

Define viscosity?

643

---

List the advantages and disadvantages of a pfr?

638

---

At what temperature does water have maximum density?

547

---

What is a cstr and what are its basic assumptions?

668

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