1. List the three main categories of pressure regulators, and state where they
are used.
2. How the area of diaphragm can affect the droop?
3. List four effects that too large an orifice would have in a
regulator.
4. Describe bath-tub stopper effect.
5. Describe the operation of a typical gas appliance pressure regulator
6. What is the another name for zero governer?
7. Name two configuration of balanced regulator?
8. List two of the primary advantages of pilot-operated regulators using two path control.
9. List two advantages of pilot-operated regulators using unloading controls.
10.What is the difference between the spring actions of the pilot and of the main regulator?
11. What is the difference between DOR and POR? (at least 3 differences)
Answer(s) should be submitted before 11.59 p.m, Aug 8. You can answer both in Malay or English.
