302Ca Flashcards
Two types of protective structures can be mounted on an off-road machine to protect
the operator from harm. Identify these two (2) types of structures.
a) Falling Object Protective Structure (FOPS)
b) Roll Over Protective Structure (ROPS)
Protective structures must be mounted on the machine so that impact forces are
transmitted through the mounting arrangement to the main frame.T/F
true
Protective screens and guards may be mounted on the basic protective structure.
These components must be mounted so that maximum operator protection exists
while operator visibility is restricted as little as possible.T/F
true
Lights and other accessories can be mounted on a protective structure. Holes for the
mounting brackets should be drilled through the structural members (vertical beams)
to provide the maximum support for the lights and accessories.T/F
false;
When you repair a protective structure you should follow the instructions and
recommendations provided by the particular manufacturer.T/F
true
What safety precaution should you follow when you remove and replace a protective
structure?
Always use proper lifting equipment that can handle the weight of the structure. Use
slings and/or beams to balance the load. Keep other workers clear of the area during
this process.
Identify three (3) reasons why fire suppression equipment should be installed on off-road equipment.
a) The cost of equipment is very high.
b) The cost of equipment downtime and lost production is very high.
c) Huge quantities of fuel, oil, lubricants and hydraulic fluids are carried on large
off-road machines.
Some fire suppression systems are manually activated. Other fire suppression
systems are manually and/or automatically activated. T/F
true
Identify the two (2) different types of heat detection sensors that could be used on a
fire suppression system that has an automatic control centre.
a) Spot sensors – detect high temperature at specific locations.
b) Linear detection wire - detects high temperature wherever the wire is installed.
The only gas used to signal, trigger and pressurise the fire suppression system is
carbon dioxide.T/F
false;
Dry chemical powder and liquid chemical solutions can both be used in a fire
suppression system.T/F
true
When an automatic fire suppression system detects a fire, several steps occur quite
quickly within a short delay period. Identify four (4) of those steps.
a) An audible and often a visual alarm is sounded.
b) The engine shut down process is automatically started.
c) The fire control system begins to vent the hydraulic tanks.
d) The fire suppression system is automatically started.
A fire suppression system can pose some danger to an operator or personnel in the
vicinity when the system is activated. Identify the three (3) main system components
that could affect human life.
a) The chemical agents (dry or liquid).
b) The compressed gas (the dispersant gas).
c) The high system pressure that drives the chemical from the nozzles.
The fire suppression system should be inspected by a qualified fire equipment
serviceperson, at least every six months at a minimum.T/F
true
The following are examples of ground-engaging tools.
a) cutting edges
b) corner bits
c) ripper points
d) scarifier points
e) all of the above
All of the above are examples of ground-engaging tools.
