Question

Due to the turbidity of the water in the boiler feedwater, _____ is caused.

1. sludge
2. embrittlement
3. corrosion
4. cracking

Answer 1

Correct Answer - Option 1 : sludge

Explanation:

Turbidity:

• Turbidity is the measure of the cleanliness of boiler feed water.
• Less turbidity indicates clean water and high turbidity indicates contaminated water.
• Contaminated water contains suspended insoluble particles like mud, sand, sediments, etc. and during boiler operation, it settles down in the boiler which is called sludge.
• Turbidity decreases when filtration is perfect.

 

Embrittlement:

• When there is the loss of ductility and toughness in steel with little change in other properties then it is termed as embrittlement and it can lead to sudden failure.
• Embrittlement is a form of stress corrosion cracking that takes place along grain boundaries.