2nd Fireman Exam Written 6/15/99
1.Describe the boiler in the picture. (it was a Scotch marine dry back)
2.Draw the side view of a Scotch marine wet back boiler.
3.How many drums on a Sterling boiler?
4.How does feed water enter the Sterling boiler?
5.Where is the main steam outlet on a Sterling boiler?
6.Why are baffles used on water tube boilers and what happens if they deteriorate?
7.How can you tell if an H.R.T. boiler has settled?
8.Why are fire tubes beaded?
9.Why do we have a check valve in the feed water line?
10.Where on the feed water line and in what position can we install the check valve?
11.How are safety valves properly sized on a boiler?
12.Why do we use safety valves?
13.What steps would you take if you lost main flame? (firing oil)
14.What is the difference between a rotary and a centrifugal pump?
15.Why and how are are flat surfaces supported?
16.Your pressure gauge reads 50PSI, the safety valve is set to lift at 100PSI and lifts, what do you do?
17.What causes a pump to go steam bound and what do you do?
18.What is saturated steam and what is superheated steam?
19.What is the difference between a gate and a globe valve?
20.Name 6 different safety devices on a boiler.
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