Home

What is the correct answer?

4

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)

Correct Answer :

D. All (A), (B) & (C)


Related Questions

The type of pump used for lifting large quantity of sewage is a __________… Copper deposits are found in India at the following location: A high pressure boiler generates steam at a pressure greater than __________… Absolute zero, pressure will occur, when the molecular momentum of the… An ideal material for making cooking vessels should have Which of the following are considered applications of ultrasonic testing? A pycnometer is used for the measurement of Preheating before welding is done to Maximum permissible air velocity in pipelines is about __________ metre/second. Melting point & boiling points of liquid oxygen are respectively - 218.8°C… __________ of hard alloy and tool steel is done to make it easily machinable. The value of for air & most common gases can be safely assumed to be Maximum consumption of limestone is in the __________ industry. Which of the following is not a principal alloying element for the structural… If a solid is compressed adiabatically in its elastic range, its __________… Electrometallurgy is not involved in the extraction of __________ from… Uniform ramming of sand in green sand moulding process leads to Dryness factor of steam is defined as the ratio of the mass of vapor in… Secondary hardening in steels arises out of the The units of the rate constant for a second order reaction are Work done by a/an __________ process is determined by ∫p. dv The product out from a cupola is called About __________ ton of coke is required in a cupola to produce one ton… Plants produce carbohydrates from the CO2 present in the atmosphere by The heat released by cooling one mole of copper from 400 K to room temperature… Insulation of liquid surface can be achieved by __________ on top of its… Name the safety device used to protect the boiler, when the water level… Nickel is a __________ material. __________ joint is mostly used for joining pipes carrying water at low… Methyl orange indicator turns