The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the_______________?

Related Mcqs:

Consumable electrodes are used in the ____________________ welding?

A. Gas B. Arc C. Thermit D. Resistance...

The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6) ?

A. 4.4 B. 5.6 C. 8.4 D. 2.4...

A material being tested for endurance strength is subjected to the _____________ load?

A. Impact B. Completely reversed C. Dynamic D. Static & dynamic...

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode________________?

A. Occurs higher in the electro-chemical series of metals B. Is exemplified by magnesium plate C. Is much cheaper than the cathodic base material to be guarded against corrosion D. All A, B. & C....

Unbreakable crockeries are made from ______________ polymers?

A. Polystyrene B. Melamine C. Polystyrene D. Polyurethane...