DAE CH 213 Chapter 6 MCQs

DAE | CH-213

APPLIED CHEMISTRY

CHAPTER : 06

DIPLOMA OF ASSOCIATE ENGINEERING

EXAM PRAPARATION

COMMON WITH:

APPLIED CHEMISTRY

MULTIPLE CHOICE QUESTION

Chapter:06 (Water)

Question 1:

The ratio of water on our planet as compared to dry land is

75% 76% 77% 78%

Question 2:

The percentage of hydrogen to oxygen in water is:

11.11 & 88.89 12 & 88 13 & 87 10 & 90

Question 3:

The bond angle between H–O–H is

\({104.4}^0\) \({104.2}^0\) \({104.3}^0\) \({104.5}^0\)

Question 4:

The most and readily soluble gas in water is

\(C{O_2}\) \(CO\) \({O_2}\) \({N_2}\)

Question 5:

The water used in the boiler is

Heavy water hard water soft water common water

Question 6:

1 PPM is equal to mg/L

1 2 3 4

Question 7:

The isolation of salts from the sea water is called

salinity salivation salts desalination

Question 8:

The chemical name of water is

hydroxide hydrogen oxide hydrogen peroxide hydrogen di oxide

Question 9:

The alternate name for the zeolite method is

Cation process Anion process Caustic soda Process Permutit method

Question 10:

The formula of cation exchange resin is

\(R{H_2}\) \(R{H_2}\) \(R{(OH)_2}\) \(R{(OH)_3}\)

Question 11:

The insoluble impurities that sticks firmly to the inner walls of the boiler tubes is called

scale sludge silica all three

Question 12:

The insoluble impurities that remain suspended in the inner walls of the boiler tubes and do not settle down are called

scale sludge silica all three

Question 13:

used for the internal treatment of scales in boiler

Colloidal conditioning Phosphate conditioning Calgon conditioning all three

Question 14:

Prevention of water, is most obligatory because it is directly responsible for soil infertility and indirectly for air pollution

pollution soluble salts hardness salinity

Question 15:

The sewage treatment can be done by the following methods

primary treatment secondary treatment tertiary treatment all three

Question 16:

The make seawater fit for domestic use it is made pure by the following steps:

Sedimentation & Filtration Desalination Sterilisation all three

Question 17:

Certain coagulating chemicals are used to separate suspended impurities in the sea water like

lime silica alums & ferric chloride oxygen

Question 18:

The water used in the boiler is usually made soft by the method

Zeolite soda ash lime soda all these three

Question 19:

For the treatment of sewage water a huge amount of is required

\({(O)}\) \({O_2}\) \({{CO}\) \({C{O_2}}\)

Quiz Results

Total Questions:

Correct Answers:

Incorrect Answers:

Percentage:

NOTE

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INSTRUCTOR

MUHAMMAD BIN JAMEEL

BSC ENGG. CIVIL