P99 LOW PRESSURE BOILERS CH 8 EXAM EXPECTED QUESTIONS AND CORRECT ANSWERS

P99 LOW PRESSURE BOILERS
CH 8 EXAM EXPECTED QUESTIONS
AND CORRECT ANSWERS

When taking over a shift, preliminary safety checks
allow the boiler operator to identify any possible
problems.
True
A routine set of duties helps the operator to complete
all assigned tasks.
True
In general, boilers should be blown down every 24 hr.
True
The main steam stop valve should be closed during
normal plant start-up.
True
The boiler vent must be closed during warm-up to
prevent pressure from escaping.
False
A bottom blowdown can be used to control chemical
concentrations in the boiler.
True
The furnace brickwork should be cooled rapidly for
energy efficiency.
False
There should be pressure in the boiler when dumping.
False

, The boiler should be blown down when it is on a
heavy load.
False
The operator's hand must always be kept on the
blowdown valve during blowdown.
True
The blowdown valve should be kept open long enough
for the water level in the gauge glass to drop out of
sight.
False
The quick-opening valve is opened first and closed
last during blowdown.
True
The low water fuel cutoff is checked for proper
operation with the burner firing.
True
Try cocks can be used as a boiler water level
indicator.
True
Steam discharged from the top try cock indicates a
low water level.
False
An evaporation test is performed by blowing down the
low water fuel cutoff.
False
Water added to a boiler with a low water level
condition could cause a boiler explosion.
True
Furnace explosions are caused by steam in the fuel
oil.
False