OSHA 30 Construction Excavation Test 2024 Solved
100% Correct
when your trench is deeper than 4 feet and hazards may be present air monitoring
must be done before entry - ANSWERA. true
Excavation safety standards have introduced in 1989 - ANSWERA. true
To be classified as type a the soil cannot be - ANSWERE. all of the above
each of the following is a type b soil except - ANSWERD. sand
A soil are usually clays and cemented soil such as caliche and hardpan - ANSWERA.
true
Which of the following are common soil classification tests - ANSWERE. all except c
the most important distinction between stable rock types is - ANSWERC. degree of
stability
the definition of type c 60 soil is provided by manufacturers to allow the competent
person an opportunity to use vertical shores or other protective systems in
accordance with tables provided by the manufacturer - ANSWERA. true
A defining feature of stable rock is that it will - ANSWERB. remain intact while
exposed
Osha requires that the competent person perform two visual and two manual tests -
ANSWERB. False
A soil cannot be type a if it is - ANSWERD. all of the above
which of the following statements is true of kick out - ANSWERD. all of the above
Which soil type is the most common - ANSWERb. Type b
True or false shores must be pumped to a minimum of 750 lbs of pressure but more
is recomended - ANSWERA.true
Type b soils afford how many options of protection - ANSWERd. four
true or false mixed oak timbers have a greater bending strength per square inch than
douglas fir. - ANSWERB. false
True or false aluminum hydraulic shoring permits both installation and removal
without entering the trench - ANSWERA. true
,In type c soil the angle o repose is very low how many degrees must the angle be -
ANSWERD. 34 degrees
the struts of a screw jack system must be adjusted manually which creates a hazard
because - ANSWERB. be in the trench in order to adjust the strut
The depth at which an excavation needs attention from a registered pro engineer is -
ANSWERD. 20 feet
T or F all systems have a set of manufacturers tabulated data to be used for proper
design and installation of the equipment - ANSWERA. True
placing a shield between the side of an excavation and the work area can minimize
the risk in the event of a cave in - ANSWERA. true
Shoring and shielding can be custom built from tabulated data approved by a
engineer - ANSWERA true
when exposed to vehicular traffic your excavation - ANSWERd. all of the above
surface encumbrance - ANSWERb hazard
eye contact outside radius - ANSWERtrue
water accumulation all are true except - ANSWERd. special shields are not allowed
walkway rails - ANSWERb 6ft
A cubic yard of soil can weigh as much as: - ANSWERA small pickup truck
To be classified as type A, the soil cannot be - ANSWERAll of the above (disturbed,
part of a mixed layered system, subject to vibration, seeping water
When your trench is deeper than 4 ft and hazards may be present, air monitoring
must be done before entry - ANSWERTrue
A soil cannot be Type A if it is: - ANSWERAll of the above
Which of the following are common soil classification tests? - ANSWERAll except C
A soils are usually clay and cemented soils such as caliche and hardpan -
ANSWERTrue
Each of the following is Type B soil EXCEPT: - ANSWERSand
, The definition of type C-60 soil is provided by manufactures to allow the competent
person an opportunity to use vertical shores or other protective systems in
accordance with tables provided by the manufacture - ANSWERTrue
The most important distinction b/w stable rock types A&B and type C is: -
ANSWERDegree of stability
A defining feature of stable rock is that it will: - ANSWERRemain intact while exposed
OSHA requires that the competent person perform two visual and two manual test
on a soil sample fresh out of the ground and not impacted by weather conditions at
the site - ANSWERFalse
Aluminum hydraulic shoring permits both installation and removal without entering
the trench - ANSWERTrue
Shores must be pumped to a minimum of 750 pounds of pressure but more is
recommended - ANSWERTrue
Type B soils afford how many options of protection? - ANSWERFour
Which soil type is the most common? - ANSWERType B
Which of the following statements is true of kickout? - ANSWERAll of the above
Mixed oak timber have a greater bending strength per square inch than Douglas fir -
ANSWERFalse
In type C soil, the angle of repose is very low, how many degrees must the angle be?
- ANSWER34
The depth at which an excavation needs attention from a registered professional
engineer is: - ANSWER20 ft
Placing a shield (e.g., trench shield or trench box) between the side of an excavation
and the work area can minimize the risk in the event of a cave in. - ANSWERTrue
Shoring and shielding can be custom built from tabulated data approved by a
registered PE. - ANSWERTrue
The struts of a screw jack system must be adjusted manually, which creates a hazard
because the worker is required to: - ANSWERBe in the trench in order to adjust the
strut
All systems have a set of manufacturer's tabulated data to be used for proper design
and installation of the equipment - ANSWERTrue
100% Correct
when your trench is deeper than 4 feet and hazards may be present air monitoring
must be done before entry - ANSWERA. true
Excavation safety standards have introduced in 1989 - ANSWERA. true
To be classified as type a the soil cannot be - ANSWERE. all of the above
each of the following is a type b soil except - ANSWERD. sand
A soil are usually clays and cemented soil such as caliche and hardpan - ANSWERA.
true
Which of the following are common soil classification tests - ANSWERE. all except c
the most important distinction between stable rock types is - ANSWERC. degree of
stability
the definition of type c 60 soil is provided by manufacturers to allow the competent
person an opportunity to use vertical shores or other protective systems in
accordance with tables provided by the manufacturer - ANSWERA. true
A defining feature of stable rock is that it will - ANSWERB. remain intact while
exposed
Osha requires that the competent person perform two visual and two manual tests -
ANSWERB. False
A soil cannot be type a if it is - ANSWERD. all of the above
which of the following statements is true of kick out - ANSWERD. all of the above
Which soil type is the most common - ANSWERb. Type b
True or false shores must be pumped to a minimum of 750 lbs of pressure but more
is recomended - ANSWERA.true
Type b soils afford how many options of protection - ANSWERd. four
true or false mixed oak timbers have a greater bending strength per square inch than
douglas fir. - ANSWERB. false
True or false aluminum hydraulic shoring permits both installation and removal
without entering the trench - ANSWERA. true
,In type c soil the angle o repose is very low how many degrees must the angle be -
ANSWERD. 34 degrees
the struts of a screw jack system must be adjusted manually which creates a hazard
because - ANSWERB. be in the trench in order to adjust the strut
The depth at which an excavation needs attention from a registered pro engineer is -
ANSWERD. 20 feet
T or F all systems have a set of manufacturers tabulated data to be used for proper
design and installation of the equipment - ANSWERA. True
placing a shield between the side of an excavation and the work area can minimize
the risk in the event of a cave in - ANSWERA. true
Shoring and shielding can be custom built from tabulated data approved by a
engineer - ANSWERA true
when exposed to vehicular traffic your excavation - ANSWERd. all of the above
surface encumbrance - ANSWERb hazard
eye contact outside radius - ANSWERtrue
water accumulation all are true except - ANSWERd. special shields are not allowed
walkway rails - ANSWERb 6ft
A cubic yard of soil can weigh as much as: - ANSWERA small pickup truck
To be classified as type A, the soil cannot be - ANSWERAll of the above (disturbed,
part of a mixed layered system, subject to vibration, seeping water
When your trench is deeper than 4 ft and hazards may be present, air monitoring
must be done before entry - ANSWERTrue
A soil cannot be Type A if it is: - ANSWERAll of the above
Which of the following are common soil classification tests? - ANSWERAll except C
A soils are usually clay and cemented soils such as caliche and hardpan -
ANSWERTrue
Each of the following is Type B soil EXCEPT: - ANSWERSand
, The definition of type C-60 soil is provided by manufactures to allow the competent
person an opportunity to use vertical shores or other protective systems in
accordance with tables provided by the manufacture - ANSWERTrue
The most important distinction b/w stable rock types A&B and type C is: -
ANSWERDegree of stability
A defining feature of stable rock is that it will: - ANSWERRemain intact while exposed
OSHA requires that the competent person perform two visual and two manual test
on a soil sample fresh out of the ground and not impacted by weather conditions at
the site - ANSWERFalse
Aluminum hydraulic shoring permits both installation and removal without entering
the trench - ANSWERTrue
Shores must be pumped to a minimum of 750 pounds of pressure but more is
recommended - ANSWERTrue
Type B soils afford how many options of protection? - ANSWERFour
Which soil type is the most common? - ANSWERType B
Which of the following statements is true of kickout? - ANSWERAll of the above
Mixed oak timber have a greater bending strength per square inch than Douglas fir -
ANSWERFalse
In type C soil, the angle of repose is very low, how many degrees must the angle be?
- ANSWER34
The depth at which an excavation needs attention from a registered professional
engineer is: - ANSWER20 ft
Placing a shield (e.g., trench shield or trench box) between the side of an excavation
and the work area can minimize the risk in the event of a cave in. - ANSWERTrue
Shoring and shielding can be custom built from tabulated data approved by a
registered PE. - ANSWERTrue
The struts of a screw jack system must be adjusted manually, which creates a hazard
because the worker is required to: - ANSWERBe in the trench in order to adjust the
strut
All systems have a set of manufacturer's tabulated data to be used for proper design
and installation of the equipment - ANSWERTrue
