Related Questions

Cleaning is done by
(i) Scraping and removal in filters slow sand
(ii) Back washing in slow sand filters
(iii) Scraping and removal in filters rapid sand
(iv) Back washing in rapid sand filters
The correct answer is
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.
Reason R: The sand used in slow sand filters is finer than that in rapid sand filters
Select your answer based on the coding system given below:
What is coiled tubing used in the petroleum industry?
Consider the following statement. i. Slow sand filter is not flexible in variation in demand ii. The rapid sand filter is flexible in fluctuations in demand iii. The method of cleaning of a slow sand filter involves agitation and back-washing Which of the above statement is/are correct?
The carpogonium of lichen is a special cellular filament consisting of two portions, the lower coiled portion and the upper straight portion. The coiled portion constitutes the
What is the most common use of Coiled tubing?
In the petroleum industry, Coiled Tubing is faster or slower than a workover rig?
Why does coiled tubing have a faster rate of penetration than rotary drilling rig?
The function of the tubing head is to hang the tubing string inside the well.
An oil well is having a true vertical depth of 10000 ft and measured depth of 12000 ft. the tubing shut-in pressure is 500 psi and the weight of the fluid in the tubing is 4 ppg. Calculate the formation gradient in psi/ft of the well?