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Q. Patching touch up stick?
Pipe requiring limited coating repair resulting from scars, slivers, holidays, etc. shall be repaired by an OWNER approved patching system. The amount of patching shall be limited to not more than two repairs per one metre length of coating (for example a maximum of forty eight (48) repairs on a 24 m joint). Any coating requiring patching in excess of this amount shall be re-coated.
Areas of pipe requiring small spot repairs shall be cleaned by a surface grinder to remove dirt, scale, rust, damaged coating or any other foreign material. Edges of the adjacent coating shall be feathered by hand sanding and all dust produced by cleaning and feathering shall be removed prior to patching. Defective coatings containing only pinholes do not require the full surface preparation. In these cases surface dirt, oil, grease or other contaminants which may impair the adhesion of the patching material shall be removed.
Only one of the following repair systems shall be used:
a) Patching touch up stick
b) Patching compound
Brazing is a technique of joining two similar of dissimilar metal pieces together by heating the surfaces and by using a non-ferrous filler metal having its melting point above 42
what is strength of material?
A fictious force or pseudo force is an imaginary force that acts on a body in non inertial frame. it is opposite in direction of accelaration of non inertial frame.
What type of low lube oil security recommended for API612 steam turbines.(Electronic/Mechanical). Please give refrences
Connecting Rod : It connects the piston and the crankshaft and transmits the power from the piston to the crankshaft. It has a small end (through which gudgeon pin passes to conne
Before installing a bolt, stud or nut, threads shall be examined to ensure that there are no incompletely cut threads in the engagement zone (both internal and external) or burns,
Let consider the breakwater configuration shown in the figure below. The incident wave conditions at the breakwater are a wave height of 1.5m, wave period of 7.0s and a wave crest
(a) A 50 mm dia. jet having a velocity of 18 m/sec. impinges without shock on a flat plate inclined at an angle to the axis of jet. If the plate is moving at 5 m/sec in the directi
Which conducts heat faster steel copper or brass? Ans) Copper conducts heat faster than steel or brass. Any material that is good for conducting heat is also good for electricit
Q. Corrosion in Steam Condensate System? Carbon dioxide and oxygen, either acting alone or in combination, account for the majority of steel corrosion problems in the condensat
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