TEST YOURSELF
1 Whatever its state, the only risk
related to nitrogen is suffocation. True -False
2 The smell of nitrogen immediately
identifies an oxygen deficient environment.
True /False
3 Testing for flammable gases in
pipe s purged with nitrogen does not pose any problems with explosimeters. True
/False
4 There is no risk in leaving a
bottle of nitrogen in a small room. True /False
5 An air purifying respirator will
adequately protect me in an oxygen deficient atmosphere. True /False
6 It is safe to pour liquid nitrogen
on myself. True /False
7 Even if I inhale pure nitrogen, I
will be safe for a few minutes thanks to the oxygen stored in my blood.
True /False
8 Nitrogen is not the only gas that
can cause suffocation. True /False
9 Nitrogen is only used on the site
for preparing equipment for maintenance (never for other purposes or in the
tank farms ). True /False
10 Unregenerated catalyst can be
pyrophoric. True /False
11 Handling, unloading, storage and
shipment of unregenerated catalysts is normally carried out under nitrogen
cover. True /False
2 Catalyst dust is not a threat to
our health and therefore air-line respirators are not required.
True /False
13 Dust masks always provide
adequate protection to prevent inhalation of catalyst particles.
True /False
14 Specialist contractors for inert
gas confined space entry projects use conventional SCBA because they are
trained underwater divers. True /False
15 Providing the atmosphere is
between 19.5% and 23.5% oxygen, it is always safe to enter the confined space. True
/False
16 Open manholes are dangerous
because technicians are likely to put their heads inside.
True /False
17 Oxygen deficient atmospheres can
be created outside a confined space.
True /False
18 An occupational health risk
assessment is required prior to any possible exposure to catalyst, to protect
the technicians and the environment from harmful effects. True /False
19 Conventional breathing apparatus
normally found in refineries provides adequate protection for working in an
inert / nitrogen-filled confined space. True /False
20 All air compressors provide the
quality of air necessary for breathing apparatus. True /False
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