The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by_______________?

Byadmin January 17, 2019June 4, 2021

The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by_______________?

A. TOD>BOD>COD
B. TOD>COD>BOD(Correct)
C. BOD>COD>TOD
D. COD>BOD>TOD

CHEMICAL ENGINEERING | Environmental Engineering

Algae growth in water is controlled by

Question: Algae growth in water is controlled by
[A].

deoxidation
[B].
chlorination
[C].
bleaching
[D].
aeration

Answer: Option B

Explanation:

No answer description available for this question.

Read More Algae growth in water is controlled by
CHEMICAL ENGINEERING | Environmental Engineering

Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.

Question: Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.
[A].

35
[B].
75
[C].
95
[D].
105

Answer: Option B

Explanation:

No answer description available for this question.

Read More Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels.
Environmental Engineering

Scour valves are provided ______________?

Scour valves are provided ______________?

A. at street corners to control the flow of water
B. at every depression and dead ends to drain out the waste water that may collect there(Correct)
C. at the foot of rising main along the slope to prevent back running of water
D. at every summit of rising mains

Read More Scour valves are provided ______________?
Environmental Engineering

The characteristics of fresh and septic sewage respectively are____________________?

The characteristics of fresh and septic sewage respectively are____________________?

A. acidic and alkaline
B. alkaline and acidic(Correct)
C. both acidic
D. both alkaline

Read More The characteristics of fresh and septic sewage respectively are____________________?
Environmental Engineering

Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?

Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?

A. hardness in water(Correct)
B. turbidity in water
C. dissolved oxygen in water
D. residual chlorine in water

Read More Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?
CHEMICAL ENGINEERING | Environmental Engineering

Brown spots in fabrics will be caused by washing with water containing large amount of .

Question: Brown spots in fabrics will be caused by washing with water containing large amount of .
[A].

iron
[B].
zinc
[C].
iodine
[D].
bromine

Answer: Option A

Explanation:

No answer description available for this question.

Read More Brown spots in fabrics will be caused by washing with water containing large amount of .

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