Crystalline Silica
What is the PEL for crystalline silica?
50 ug/m3
Any employee exposed to fall hazards of greater than __ feet that are not protected by other means, must utilize a personal fall arrest system.
6'
A
T or F: It is okay to use a power industrial vehicle as a personal lift.
False
What are some symptoms of a heat stroke?
High body temp, nausea/vomiting, racing heart rate, headache, rapid breathing, change in behavior, and flushed skin.
What is the most common form of silica?
Quartz
Fall protection systems can include which three of the following: a) Personal fall arrest systems b) Working on flat roofs only c) Guardrail systems d) Safety nets e) Off-site video monitoring
a) Personal fall arrest systems, c) Guardrail systems, d) Safety nets
All excavations ____ feet or more in depth must have an OSHA approved protective system installed.
5
If a forklift begins to tip over, what should the operator do?
A. Jump out quickly
B. Brace themselves and stay in the seat
C. Climb on the mast
D. Turn off the engine mid-fall
B. Brace themselves and stay in the seat
Heat index is based on air temperature and what?
Humidity
What is the Action Level for crystalline silica?
25 ug/m3
All guardrails must consist of a:
top rail, midrail, and a toe board
Which of the following is NOT a type of protective system used in trenching?
A. Sloping
B. Shielding
C. Shoring
D. Surfacing
D. Surfacing
How often should a forklift be inspected?
Daily and prior to each use.
Define “Acclimatization”
Temporary adaption of the body to work in the heat that occurs gradually when a person is exposed to it.
What are the primary health hazard associated with exposure to respirable crystalline silica? a) Skin Irritation b) Silicosis c) Eye irritation d) Gastrointestinal issues
b) Silicosis
Wire rope must have a minimum breaking strength of ______lbs.
5000
Excavations with limited exposure or no pedestrian traffic may be protected with 42 inch orange barrier fence placed at least __ feet away from the edges of the excavation.
6
When is a lift hook required?
When conducting lifting operations under the forks.
At 106 degrees heat index what is the required work to break ratio?
Every 50 minutes you must have a 10 minute break
What is the recommended method for cleaning up silica dust? a)Dry sweeping b) Compressed air c) HEPA vacuuming d) Wet sweeping
c) HEPA vacuuming
Anchor points for a fall restraint system must be capable of supporting _____ lbs. per worker attached.
1,000 lbs.
Excavations greater than ___ feet in depth must be designed by a registered Professional Engineer with expertise in soils and protective systems.
20
What is the minimum safe approach distance in feet for a voltage range of 0 to 50kV?
10
Define heat illness
A serious medical condition resulting from the body’s inability to cope with a particular heat load, and includes heat cramps, heat exhaustion, heat syncope and heat stroke.