Courses

# Test: Quality Control of Water Supply - 1

## 10 Questions MCQ Test GATE Civil Engineering (CE) 2022 Mock Test Series | Test: Quality Control of Water Supply - 1

Description
This mock test of Test: Quality Control of Water Supply - 1 for Civil Engineering (CE) helps you for every Civil Engineering (CE) entrance exam. This contains 10 Multiple Choice Questions for Civil Engineering (CE) Test: Quality Control of Water Supply - 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Quality Control of Water Supply - 1 quiz give you a good mix of easy questions and tough questions. Civil Engineering (CE) students definitely take this Test: Quality Control of Water Supply - 1 exercise for a better result in the exam. You can find other Test: Quality Control of Water Supply - 1 extra questions, long questions & short questions for Civil Engineering (CE) on EduRev as well by searching above.
QUESTION: 1

Solution:
QUESTION: 2

Solution:
QUESTION: 3

### One True Colour Unit (TCU) is the colour produced by

Solution:
QUESTION: 4

The threshold odour number (TON) for a water sample of 40 ml, diluted to standard 200 ml mixture, in which odour is just barely detectable to the sense of smell, is

Solution:

Threshold odour number represents the dilution ratio at which the odour is hardly detectable,
TON  = 200/40 = 5

QUESTION: 5

Water is considered ‘hard’, if its hardness is of the order of

Solution:

Water with hardness upto 75 ppm are considered soft while those with 200 ppm and above are considered hard. In between the waters are considered as moderately hard.

QUESTION: 6

Higher quantities of copper, more than 2.5 mg/l or so, may cause diseases pertaining to

Solution:

High quantities of copper are likely to affect human lungs and other respiratory organs.

QUESTION: 7

The maximum allowable concentration of iron in water is

Solution:

Higher concentration of iron above 0.3 ppm causes discolouration of clothes and incrustation in water mains.

QUESTION: 8

The commonly used indicator for measuring iron concentration in water is

Solution:

Eriochrome black T is used to measure hardness. Phenolphthalein is used to measure alkalinity. Blue litmus is used to measure acidity of water.

QUESTION: 9

The maximum safe permissible limit of chlorides in domestic water supplies is

Solution:
QUESTION: 10

Breweries and distilleries preferably require

Solution: