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Define Diving Equipments for Underwater Inspection of Bridge?
Generally two types of diving, Scuba diving and surface supplied air diving, is employed in underwater inspection of bridges. In Scuba diving, air supply is provided by the pressure tank carried by the diver. Surface supplied air diving equipment includes a compressor, which collects and pumps air into a volume tank for storage. The compressed air is regulated to the diver through a hose, which passes through an air filter. The hose is part of a tether, which includes a safety line, communication line and Pneumofathometer hose.
The Pneumofathometer provides depth measurements to the surface. A reserve air tank may also be carried by the diver for emergency. In addition to above, following personal equipments are required with the diver:
- Exposure suit (wet or dry)
- Face mask or helmet
- Breathing apparatus
- Weight belt
- Swim fins
- Knife
- Wrist watch
- Buoyancy compensator (a floatation device capable of maintaining a diver face up at the surface)
- Depth gauge
- Pressure gauge
Assessing Maintenance Needs: Maintenance needs can be assessed by a careful inspection of roads at regular intervals, observing defects such as : potholes cracks
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Q. False set in pile driving? For pile driving in certain soils such as dense silt and weathered rock, occurrence of false set phenomenon isn't uncommon. During the driving pro
define traverse.purpose of traverse, procedures of traverse, taking linner measurment, types of traverse, convert the following quardnatal bearing to wcb. 1.OA= N15 deg10mins ''E,
TERMINOLOGY 1. Focus: The point on the fault where slip begins is the focus. It is also called as hypocentre 2. Epicentre: The point vertically above the focus on the su
Calculate the Total Area (acre) for Lot A 30-ft wide parabolic shaped stream divides the property as shown. The total area (acre) for Lot 6 is most nearly: Solution:
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What is hollow core flush door?
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