MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Biology

Which of the following is TRUE about primary treatment?

After which of the following process effluents from anaerobic sludge digesters are released in natural water bodies?

Which of the following occurs during tertiary treatment?

Which of the following is/are found in discharge from industrial waste?

In the process of biogas production which of the following anaerobic bacteria are used?

Small part of activated sludge is passed back into ______ and major part is pumped into large tanks called ______.

The function of stress-related hormone viz. abscisic acid is to ______

Which of the following occurs during secondary treatment?

Into which of the following the sewage water is pumped after preliminary treatment?

Identify the type of microorganisms involved in floe formation during sewage treatment.

Identify the secondary messenger(s).

Identify the INCORRECT statement with respect to sewage treatment.

What happens during the course of sewage decomposition?

In cardiac cycle for how Long atrial systole lasts?

______ refers to the organic matter which settles down after physical treatment of sewage.

During tertiary treatment, the bacterial floes sediment in the sedimentation tank, this sediment is called ____________.

Study the following statements regarding tertiary treatment of sewage and choose the correct option.

i. It produces methane gas.

ii. The effluents formed from these plants undergo chlorination.

iii. BOD is significantly increased at this step.

iv. It includes screening and passage of effluent through grit chamber.

After which of the following treatment BOD of the effluent is significantly reduced?

Which of the following process is a part of preliminary treatment of sewage?

With which of the following event the cardiac cycle starts?