Image
MCQ
8564. which is a regulatory requirement for environment clearance of industries according to environment conservation rule 1997
ΕΙΑ
IEE
EMP
All of the above
8565. Choose the correct answer:
A few number of students were present.
A few number of students was present.
A few number of student were present.
A small number of students were present.
8567. For plumbing drainage of a high rise building who is system is suitable
one pipe system
two pipe system
single structure system
none of these
8568. which disinfection system is suitable for public water supply system (কোন বিশুদ্ধকরণ ব্যবস্থা পাবলিক জল সরবরাহ ব্যবস্থার জন্য উপযুক্ত)
chlorination
ultraviolet radiation
Ozone
boiling
8571. if hardness of a water sample is greater than alkalinity then which of the following statement is true (যদি একটি জলের নমুনার কঠোরতা ক্ষারত্বের চেয়ে বেশি হয় তবে নিচের কোন বিবৃতিটি সত্য)
total hardness = carbonate hardness
none of the above
Ozonenon carbonate hardness = 0
boilingcarbonate hardness = alkalinity
8572. which one is not a Greenhouse gas.
ozone
oxide of Sulphur
oxide of Nitrogen
water vapour
8573. who is statement is not true in the case of turbidity.
turbidity can affect disinfection process and increase filtration cost
turbidity is used as a proxy of suspended solid
Organic particle can cause turbidity
colour producing dissolved substance can also cause turbidity
8574. ধূমপান স্বাস্থ্যের জন্য ক্ষতিকর- Correct translation in English:
Smoking is bad for health
Smoking is telling upon health.
Smoking was a bad habit.
Smoking is dangerous for health.
8579. which of the following does not produce disinfection by_products (নিচের কোনটি..... যুক্ত হলেও পানীয় জল বিশুদ্ধ করে না)
chloramine
ozone
free chlorine
chlorine dioxide
8580. which of the statement is generally true for ground water (কোন বিবৃতিটি সাধারণত ভূগর্ভস্থ পানির জন্য সত্য)
has low dissolved Oxygen and low carbon dioxide
has low dissolved Oxygen and high number of microorganism
has high dissolved oxygen and low turbidity
has low turbidity and high carbon dioxide