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OSHA 510 Exam questions and answers already passed| Graded A+
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OSHA 510 Exam questions and answers already passed| Graded A+
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OSHA 510 Exam questions and answers alreadypassed| Graded A+
What is determined by the company's own record of accidents and losses? -
✔✔Experience Modification Rate
EMR equation - ✔✔ACTUAL losses / EXPECTED losses
OSHA defines an excavation as any __ cut, cavity, trench, or depression in the earth's surface
formed by earth removal - ✔✔man-made
At trench is defined as a narrow underground excavation that is __ than it is wide - ✔✔deeper
A trench cannot be wider than - ✔✔15 feet
Cave-in protection is required for all excavations greater than - ✔✔5 feet in depth unless
they are entirely in sold stable rock
A ladder must be provided every - ✔✔25 feet for excavations greater than 4 feet in depth
Spoil piles, material and equipment must be kept - ✔✔2 feet from the excavation
,Excavation inspections must be conducted - ✔✔DAILY and before start of work
Excavation inspections must be conducted to determine - ✔✔soil classification
For all trenches deeper than 5 feet, OSHA requires what to protect workers from cave-in? -
✔✔a. sloping
b. shoring
c. benching
d. shielding
Stable rock - ✔✔natural solid mineral material than can be excavated with vertical sides
Type A: cohesive soils with an unconfined compressive strength of __ tons per square foot -
✔✔1.5 tons
Type B: cohesive soils with an unconfined compressive strength greater than __ tsf but
less than __ tsf - ✔✔0.5; 1.5
Type C: cohesive soils with an unconfined compressive strength of __ tsf or less - ✔✔0.5 tsf
, Type A can be sloped at a ratio of __ if the excavation will be open for less than 24 hours and is
less than 12 feet in depth - ✔✔1/2 : 1
Any excavation more than __ feet in depth requires a qualified person to design the protection
- ✔✔20 feet
The classification of soil shall be made based on the results of at least one visual and one
__ analysis conducted by a competent person - ✔✔manual
The best method to prevent injuries is to _____. - ✔✔prevent the hazard
The second best way to prevent injuries is to _____. - ✔✔eliminate the hazard
The third best way to prevent an injury is to _____. - ✔✔control exposure
The preferred method to control exposure is _____. - ✔✔engineering
The second best way to control exposure is _____. - ✔✔administrative
The least preferred way to control exposure is _____. - ✔✔PPE
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