Chapter 140

Question 0

Who should be responsible for doing frequent boiler inspections?

Answer 0

The boiler operator

Question 1

When plugging off a tube in a boiler, the plug taper should be:
A) 10 to 1
B) 20 to 1
C) 15 to 2

Answer 1

B) 20 to 1

Question 2

A steam heating boiler to be shut down for six months during the summer should be:
A) drained, thoroughly dried out, slaked lime placed inside and left open
B) drained, thoroughly dried out, slaked lime placed inside and closed up
C) left with the water at normal working level but opened up to atmosphere
D) left with the water at normal working level and pressurized with air to 50kPa
E) a completely water filled boiler with the vent open to atmosphere

Answer 2

B) drained, thoroughly dried out, slaked lime placed inside and closed up

Question 3

The final step in replacing a fire tube is:
A) closing the boiler
B) ensuring all tools and debris have been removed from the boiler
C) conducting a hydrostatic test
D) informing the boiler inspector the tube replacement is completed

Answer 3

C) conducting a hydrostatic test

Question 4

Who is qualified to do a weld repair on boilers and pressure vessels?
A) shift engineer
B) millwright
C) pressure welder
D) pipe fitter

Answer 4

C) pressure welder

Question 5

State the name of the device that is used to detect fine cracks when used in combination with a fluorescent penetrant.

Answer 5

Black light