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explain the anti slip devices - bridge bearingit has been explained earlier that elastomeric bearings have a tendency to slip if the minimum normal
define remedial measures for problems in turbid water - refractionthere is little that can be done to overcome the effects of refraction image
define remedial measures for problems in turbid water - absorptionthe process of absorption of light can be overcome by using higher powered lighting
define problems in turbid water - underwater inspection of bridgethere are three main problems which limit the viewing performance of an underwater
define special considerations for underwater inspectiononce a diver enters the water there environment changes completely visibility decreases and is
define surface communication - underwater inspection of bridgeit is not necessary to have voice communication in all situations particularly for
define electrical tool for underwater inspection of bridgeelectrical equipment like rebar scanner for scanning of rebars underwater sonic and
define mechanical tool for underwater inspection of bridgemechanical devices that involves a schmidt test hammer for computing concrete surface
explain handheld inspection tools for underwater inspection of bridgehandheld tools such as flash lights rulers and tape measures for documenting
explain the inspection tools for underwater inspection of bridgeso many inspection tools are available the dive team should have access to the
define water jets for underwater inspection of bridgethese tools are widely used and produce a bright metal finish in one operation grit entrainment
define hydraulic tools for underwater inspection of bridgehydraulic tools involve grinders rotary brushes and scrubbers the benefits of hydraulic
define pneumatic tools for underwater inspection of bridgethese are more efficient than hand tools and cause less diver fatigue the disadvantages are
define hand tools for underwater inspection of bridgehand tools involve scrapers wire brushes chain and wire ropes tools of this kind are suited in
define surface cleaning tools for underwater inspection of bridgeto perform a thorough inspection the marine growth on the structure must be removed
define diving equipments for underwater inspection of bridgegenerally two types of diving scuba diving and surface supplied air diving is employed in
explain the dynamic or vibration tests tests of this type also known as sonic integrity test involve sub- jecting the element to a single impulsive
define limitations of radiography - underwater inspection of bridgei radiography is a costly and time consuming method which re- quires extensive
define radiography - underwater inspection of bridgeradiographic non-destructive examination of components is based on the phenomenon that materials
define limitations of underwater magnetic particle testingas with any non-destructive test method uwmt has some limitations as underi underwater
define equipments required for conducting uwmtequipments required for conducting uwmt areinspection equipmentaelectronic yoke with power cablebground
define underwater magnetic particle testingunderwater magnetic particle testing uwmt is a non-destructive testing suited for detection of surface
define the ultrasonic thickness measurementultrasonic thickness meters measure the thickness of steel by passing an ultrasonic wave through the
define reinforcing steel - limitations of ultrasonic systemthe sound velocity measurement taken parallel to the reinforcing bars embedded in the
define concrete surface finish - limitations of ultrasonic systemthe smoothness of the surface under test is important to ensure proper acoustical