Top 350+ Solved Public Health Engineering MCQ Questions Answer
Q. The maximum permissible total solid content in water for domestic purposes should not exceed
a. 300 ppm
b. 400 ppm
c. 500 ppm
d. 1000 ppm
Q. Cleaning of rapid sand filters is done by
a. scraping the top layer of filter media
b. back washing
c. providing new sand layers
d. all of these
Q. Bleaching powder is
a. slaked lime
b. chloride of lime
c. hypo-chloride of lime
d. hypo-chlorite of lime
Q. The efficiency of sedimentation tank for a given discharge, can be increased by
a. increasing the depth of tank
b. decreasing the depth of tank
c. increasing the surface area of tank
d. decreasing the surface area of tank
Q. The most common cause of acidity in water is
a. hydrogen
b. oxygen
c. carbon dioxide
d. all of these
Q. In designing a water works for a city to meet the water demand for public use, a provision of about
a. 5%
b. 10%
c. 20%
d. 25%
Q. A pipe used to carry discharge from sanitary fittings like bathrooms, kitchens etc, is called
a. waste pipe
b. soil pipe
c. vent pipe
d. anti-siphonage pipe
Q. The equipment used for checking the levels of the sewer inverts is
a. dumpy level
b. theodolite
c. boning rod
d. all of these
Q. The pH value of water for public supplies is limited from
a. 2.5 to 6.5
b. 6.5 to 8
c. 8 to 10.5
d. 10.5 to 15
Q. The yield of a underground source may be obtained by
a. pumping test
b. recupating test
c. both (a) and (b)
d. none of these