A Best Way To Crack Gorenment Job Exams

Civil Engineering Objective Questions { Environmental Engineering }

295. In a sludge tank, the gas mainly produced. Is
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide
Discuss in Forum

296.  For house drainage minimum gradient is
A. 1 in 60
B. 1 in 80
C. 1 in 10
D. 1 in 400.
Discuss in Forum

297. Removal of oil and grease from sewage, is known
A. screening
B. skinning
C. filtration
D. none of these.
Discuss in Forum

298. In septic tanks, decomposition of organic bacteria, is done by
A. anaerobic bacteria
B. aerobic bacteria
C. both types of bacterias
D. none of these.
Discuss in Forum

299.  The self-cleansing velocity of water flowing through pipe lines, is
A. 2 metres/sec
B. 1 metre/sec
C. 0.5 metre/sec
D. 0.25 metre/sec.
Discuss in Forum

300. Dry water flow in a combined sewer, is
A. industrial sewage
B. domestic sewage
C. storm water
D. inclusive of domestic and industrial sewage but excludes storm water.
Discuss in Forum

301.  Drop manholes at the junctions of sewer lines, are provided if
A. invert level of a branch sewer is more than 60 cm that of the main sewer
B. sewer line runs along a main road
C. ordinary manhole cannot be built
D. two sewer lines intersect.
Discuss in Forum

Page 43 of 52

« 41 42  43  4445 »