Which of the following is NOT done when preparing a steam boiler feedwater system?
Open the feedwater control bypass valve.
Place the feedwater
... [Show More] pre-treatment equipment in service.
Verify that the boiler feedwater pumps are in service.
Confirm that the boiler water level is within range. - ✔✔ Open the feedwater control bypass valve.
R4B04-03-01-01 A light fuel oil flame should
impinge on the refractory, to stabilize ignition.
be bright yellow, with orange at the tips of the flame.
be predominantly blue, with orange at the tips of the flame.
be bright yellow, with smoke at the tips of the flame. - ✔✔ be bright yellow, with orange at the tips of the flame.
R4B04-02-01-01 Boilers should be warmed up
with maximum combustion air, to prevent smoking
rapidly, so the metal heats up faster
slowly, to minimize differential expansion and thermal shock
using only the pilot burner. - ✔✔ slowly, to minimize differential expansion and thermal shock
Which of the following is a desiccant used for dry layup?
Silicone Gel
Lime soda
Quick lime
Soda ash - ✔✔ Quick lime
R4B04-01-02-03 If a new boiler is not boiled out correctly, the result may be:
Refractory damage
Excessive waterside corrosion
Excessively high water circulation rates
Foaming - ✔✔ Foaming
Because natural gas is colourless and odourless, ___________ is added to the gas so that it is easier to detect a leak.
fluorescent dye
propane
an irritant
mercaptan - ✔✔ mercaptan
Mechanical chart recorders
require regular replacement of paper and ink.
need their charts replaced each month.
require constant winding of their clock mechanisms.
are used so regular readings do not need to be taken. - ✔✔ require regular replacement of paper and ink.
What is the recommended test frequency for flame safeguard devices?
every shift
daily
weekly
annually - ✔✔ weekly
What is the recommended boiler water pH for wet layup?
7
7.5
12
10 - ✔✔ 10
In the event of a power failure, which of the following will likely require a manual restart when power is restored?
small condensate return pumps
large air compressors
unit heater fans
air dryers - ✔✔ large air compressors [Show Less]