Review Questions
When working at heights _________ must be worn.
Safety harness
Supercritical boilers can operate at pressures as high as _______ psi.
4500
Cutting materials inside a boiler presents an added hazard due to?
Combustion residue fumes
Personnel entering a confined space must sample the atmosphere when?
before entering
When lifting a load, one must consider?
CRUSH ZONE
The weight of an object to be lifted should not exceed the _______ of the lifting equipment.
Safe working load
The term that means asbestos insulation is easily crumbled into fibers that become airborne is?
friability
One of the places on a boiler where asbestos may be found is?
door seals
According to section 4.4.0 what situation requires testing for resistance to ground by an electrician?
Welding inside a boiler on a suspended scaffold
According 3.1.0 Asbestos is classified as a friable material. which means that it?
crumbles easily into fibers and becomes airborne
The hazards associated with hot work performed on areas coated with led base paint are minimized in the workplace by?
Performing an area survey prior to performing cutting or grinding operations.
Grinding operations inside a boiler present an explosion hazard due to?
Combustible gases
One way of identifying insulation that may contain asbestos is through?
testing by qualified personnel
According 4.1.0 who needs to inspect safety harness before use?
Employee
According to 3.5.2 The fumes produced during welding upon _______ pose a respiratory hazard.
Galvanized steel
Before entering a confined space, a worker should?
Inspect the spaces shoring and support
A boilermaker working at extreme heights must follow safety precautions not only to prevent falls but also to prevent causing?
injury to personnel working below from falling objects
When welding with shielding gas, extra ventalation is needed due to the fact that gas used
is heavier than air and collects in low areas
According to 2.6.0 Chemical hazards are unique to a job site because?
types of chemicals vary from one site to another
According to 3.3.0 Lead base paint can cause?
muscle pain
Advanced steam boilers can operate at temperatures as high as _____ degrees?
1,150
Suspended scaffolds are particularly useful when working on?
boiler interiors
At the beginning of a shift boilermakers are normally given a?
safety briefing
According to 4.3.0 A rule for operation of personnel lifts is that?
They should never be moved with the lift extended
According to 3.1.1 Insulation should assume to be asbestos if?
it is not marked otherwise