On a Charleston Harbor dock reconstruction, employees work from an unguarded barge deck over open water where a drowning hazard exists. OSHA 29 CFR 1926.106 requires those employees to be provided with which of the following?
Safety Marine
Question · Easy
Divide by twenty-seven
Short
At a Cooper River wharf job with a drowning hazard, OSHA 1926.106 requires ring buoys that meet which combination of line length and spacing?
Question · Medium
OSHA 29 CFR 1926.106 requires which rescue-craft provision at locations where employees work over or adjacent to water?
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Under OSHA 1926.106, when must buoyant work vests or life preservers be inspected for defects that would reduce strength or buoyancy?
OSHA 1926.605 requires that the vicinity of each barge in use have at least which combination of lifesaving equipment?
Before driving piles or excavating for a bulkhead that does not involve a subaqueous facility, South Carolina law requires the excavator to notify SC811 within which window, not counting the day notice is given?
A Beaufort contractor will jet and drive piles near a marked subaqueous utility under a tidal creek. Under S.C. Code § 58-36-60, notice to SC811 must be made within which window, not counting the day notice is given?
An 8-inch-diameter gas main is marked on a Hilton Head bulkhead alignment, and the diameter is known. Under S.C. Code § 58-36-20, the land-side tolerance zone extends how far on each side of the designated center line?
For a marked subaqueous facility under Winyah Bay, S.C. Code § 58-36-20 defines the tolerance zone as which clearance on either side of the indicated facility?
Question · Hard
SC811 locators mark facilities with the APWA Uniform Color Code. Which color identifies gas, oil, steam, petroleum, or gaseous materials?
Inside a marked land-side SC811 tolerance zone, an excavator may use mechanized equipment only after which condition is met?
A 600-foot Georgetown pier face has a drowning hazard. OSHA 1926.106 limits the distance between ring buoys to 200 feet. If buoys are placed at both ends and at equal spacing, what is the minimum number of ring buoys required?
OSHA 29 CFR 1926.603 requires stop blocks on pile-driver leads for which primary purpose?
Pile Driving
While a loft worker sets a pile cushion under a raised diesel hammer on an Ashley River job, OSHA 1926.603 requires which protection in the leads?
OSHA 1926.603 requires pile-driver operator overhead protection that will not obscure vision and that is equivalent in strength to which of the following?
A steam hose serving a steam pile hammer or jet pipe must be secured to the hammer so a broken joint cannot whip. OSHA 1926.603 requires that attachment to be which of the following?
OSHA 1926.603 requires safety chains, or equivalent means, at each pile-hammer hose connection for which reason?
While piling is being hoisted into the leads on a Port Royal pile-driving barge, OSHA 1926.603 requires which control of personnel?
During pile driving, OSHA 1926.603 requires engineers and winchmen to accept signals from whom?
OSHA 1926.603 requires steam-line controls on a steam pile hammer to consist of which arrangement?
When leads must be inclined to drive batter piles, OSHA 1926.603 requires which additional control?
To maintain stability of a pile-driver rig, OSHA 1926.603 requires which of the following as necessary?
A Folly Beach crew must cut off the tops of driven timber piles while the driver continues on the same bent. The longest pile is 40 feet. OSHA 1926.603 allows driving to continue during cutoff only if the cutting is located at least how far from the driver?
When steel tube piles are being blown out on a Myrtle Beach pier job, OSHA 1926.603 requires employees to be kept where?
When piles are driven in an excavated pit, OSHA 1926.603 requires the pit walls to be which of the following?
When driving jacked piles, OSHA 1926.603 requires all access pits to have which combination of protections?
OSHA 1926.603 requires fixed pile-driver leads to be provided with a ladder and with which fall-protection attachment for the loft worker?
A crawler crane on a Charleston pile barge will drive H-piles with hanging leads. OSHA 1926.1404(p) requires which configuration during pile-driving operations?
Barges or floats that support pile-driving operations must meet the applicable requirements of which OSHA section?
OSHA 1926.603 requires guards across the top of the pile-driver head block for which purpose?
Boilers and piping used with pile-driving equipment must meet ASME Power Boilers (Section I). Pressure vessels used with that equipment must meet which ASME section?
Which pile type is a rolled steel section with a wide-flange shape, commonly used where the pile must be driven through debris or to rock for a marine bent?
A vibratory hammer is generally most effective for installing steel sheet piles in which soil condition?
What is the primary purpose of a drive helmet (drive cap) between the hammer and a steel or concrete pile?
On prestressed concrete piles, a pile cushion (often laminated plywood) is placed between the helmet and the pile head primarily to do which of the following?
Using the Engineering News formula for a drop hammer, Q = 2WH / (S + 1), find the allowable pile load. The hammer weighs 5,000 lb, the fall is 10 feet, and the average set of the last blows is 0.50 inch.
Using the Engineering News formula for a steam hammer, Q = 2WH / (S + 0.1), find the allowable pile load. The striking parts weigh 12,000 lb, the stroke is 3.0 feet, and the average set is 0.20 inch.
In the Engineering News pile formula, the term S is which measured quantity?
Batter piles are driven at an inclination primarily to resist which loading on a marine structure?
A driving template (or gate) is used on a multi-pile dock bent primarily to do which of the following?
Interlocking steel sheet piles are the usual choice for which marine element?
Jetting is used as a pile-driving aid primarily by which mechanism?
The rated striking energy of a single-acting drop or single-acting steam/air hammer is computed as which product?
A single-acting hammer has a 6,000 lb ram and a 3.5-foot stroke. What is its rated energy?
What is the primary function of pile-driver leads?
When a long marine pile must be lengthened during driving, which splice practice is appropriate?
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