500 Best Irrigation Engineering MCQ
Q57). The maximum permissible temperature for domestic water supply is
a).5 to 10°C
b).10 to 15°C
c).15 to 20°C
d).20 to 25°C
Correct Answer:
10 to 15°C
Explanation:
Q58). The maximum permissible colour for domestic water supplies, on platinum cobalt scale is
a).5 to 10 ppm
b).10 to 20 ppm
c).20 to 30 ppm
d).30 to 40 ppm
Correct Answer:
10 to 20 ppm
Explanation:
Q59). Odours and tastes may result due to the presence of
a).Micro-organisms either dead or alive
b).Dissolved gases such as oxygen, carbon dioxide, methane etc
c).Mineral substances such as sodium chloride, iron compounds etc
d).All of the above
Correct Answer:
All of the above
Explanation:
Q60). The maximum permissible turbidity for domestic water supplies, on silica scale is
a).5 to 10 ppm
b).10 to 20 ppm
c).20 to 30 ppm
d).30 to 40 ppm
Correct Answer:
5 to 10 ppm
Explanation:
Q61). High turbidity of water can be determined by
a).Turbidity tube
b).Jackson turbidimeter
c).Baylis turbidimeter
d).Heelipe turbidimeter
Correct Answer:
Jackson turbidimeter
Explanation:
Q62). Low turbidity of water can be determined by
a).Turbidity tube
b).Jackson turbidimeter
c).Baylis turbidimeter
d).Heelipe turbidimeter
Correct Answer:
Baylis turbidimeter
Explanation:
Q63). 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
Correct Answer:
500 ppm
Explanation:
Q64). The maximum permissible chloride content in water for domestic water supplies should not exceed
a).250 ppm
b).350 ppm
c).450 ppm
d).550 ppm
Correct Answer:
250 ppm
Explanation: