Identify the incorrect statement w.r.t. biogas plant - Vidyadip

MCQ

Identify the incorrect statement w.r.t. biogas plant

A
It consists of a concrete tank, $10-15$ feet deep in which bio-wastes are collected and a slurry of dung is fed
✓
A floating cover is placed over the slurry, which keeps on rising as the gas is consumed in the tank
C
It has an outlet, which is connected to pipe to supply biogas to nearby houses
D
The spent slurry is removed and may be used as fertiliser

✓

Answer

Correct option: B.

A floating cover is placed over the slurry, which keeps on rising as the gas is consumed in the tank

b
A floating covers is placed over slurry which keeps on rising as the gas is produced in the tank due to microbial activity.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Given below are two statements:
Statement I: During $G _1$ phase of cell cycle Initiation of DNA replication occurs.
Statement II: The centrosome undergoes duplication during M phase of interphase.
Choose the most appropriate answer from the option below:

The proximal convoluted tubule has a brush border which is due to

Which one of the following symbols and its representation, used in human pedigree analysis is correct?

$ACTH$ secreted by....

In males, the essential hormone for secondary sexual characteristics is

Statement I: Louis Pasteur demonstrated that life comes only from pre-existing life.
Statement II: Oparin of England and Haldane of Russia proposed that the first form of life could have come from pre existing non-living organic molecules.

Given below are two statements:
Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleolus.
Choose the correct answer from the options given below:

A comparison of the volume of the filtrate formed per day 180 litre per day with that of the urine released (1.5 litres), suggest that nearly 99 per cent of the filtrate has to be reabsorbed by the renal tubules. Which statement true for reabsorption ?
(i) Nearly all of the essential nutrients, 70-80 per cent of electrolytes and water are reabsorbed by this segment.
(ii) Reabsorption in loop of Henle is maximum.
(iii) Loop of Henle plays a significant role in the maintenance of high osmolarity of medullary interstitial fluid.
(iv) The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes.
(v) The ascending limb is impermeable to water but allows transport of electrolytes actively or passively.
(vi) Conditional reabsorption of Na and water takes place in PCT.
(vii) Large amounts of salt could be reabsorbed from collecting duct to produce a concentrated urine.

The hormone that have influence on other endocrine glands of the body such as thyroid, gonad etc. are secreted by

The velocity of blood flow is minimum in