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Hassan
1.10 Kg/s of a fluid with density 10 Kg/m3 is passed into a tank of capacity 50 m3, how much time will it take to fill the tank?
A. 5 Second
B. 50 Second
C. 500 Second
D. 5 Second
2.15 Kg/s of a fluid with density 5 Kg/m3 is passed into a tank of capacity 30 m3, how much time will it take to fill the tank?
A. 3 Second
B. 10 Second
C. 30 Second
D. 3 Second
3.20 Kg/s of a fluid with density 5 Kg/m3 is passed into a tank of capacity 60 m3, how much time will it take to fill the tank?
A. 5 Seconds
B. 10 Seconds
C. 15 Seconds
D. 5 Seconds
4.16 grams of oxygen is passed in the process in 5 minutes, what is the molar flow rate?
A. 0.1 mole/min
B. 1 mole/min
C. 10 mole/min
D. 0.1 mole/min
5.24 grams of CH4 is passed in the process in 3 minutes, what is the molar flow rate?
A. 0.1 mole/min
B. 0.3 mole/min
C. 0.5 mole/min
D. 0.1 mole/min
6.The living environment, the biosphere consists of components?
A. 1
B. 2
C. 3
D. 1
7.The presence of gas in water is indicated by?
A. Color change
B. Bubbles
C. Foam
D. Color change
8.To test turbidity of polluted water in the field, is used?
A. Turbidity rod
B. Turbidity tube
C. Jackson Turbidimeter
D. Turbidity rod
9.Refuse may be of which types?
A. 1
B. 2
C. 3
D. 1
10.In the method of trenching, the size of the trench may be?
A. 15 x 5 x 5m
B. 12 x 3 x 2m
C. 15 x 5 x 3m
D. 15 x 5 x 5m
11.Hydrogen Peroxide is generated from?
A. Thermal power plants
B. Automobile exhausts
C. Explosive manufacturing industry
D. Thermal power plants
12.When some chemical is mixed with water, which is formed?
A. Foam
B. Bubbles
C. Floc
D. Foam
13.Which of the below leads to disturbance of nitrogen fixation in the soil?
A. Industrial effluents
B. Pesticides
C. Fertilizers
D. Industrial effluents
14.Which is the simplest equipment used for collection of solid particulates?
A. Cyclones
B. Settling chamber
C. Filters
D. Cyclones
15.Pollution cases can be classified into which types?
A. 2
B. 4
C. 6
D. 2
16.Which is a raw material sent to and processed in a waste recycling plant?
A. Recyclate
B. Particulars
C. Nodules
D. Recyclate
17.What are the main constituents of the environmental cycles?
A. Water cycle and air cycle
B. Nutrient cycle
C. Water cycle and nutrient cycle
D. Water cycle and air cycle
18.Failures within hydrosphere in oxygen cycle can result in the development of?
A. Hydroxic zones
B. Hydrolic zones
C. Hypoxic zones
D. Hydroxic zones
19.The term ‘Sullage’ refers to?
A. Toxic wastewater
B. Wastewater from kitchen, laundry
C. Septic wastewater
D. Toxic wastewater
20.Wastewater can become septic by the loss of?
A. Water content
B. Organic compounds
C. Carbon content
D. Water content
21.Which one of the below is not an attribute of drinking water?
A. Source
B. Safety
C. Economic
D. Source
22.The extent of water treatment depends on how many factors?
A. 2
B. 4
C. 6
D. 2
23.What is added to the water treatment tank to settle the colloidal particles?
A. Potash
B. Lime
C. Alum and lime
D. Potash
24.Disinfection of water in our country is mainly done by?
A. Filtration
B. Chlorination
C. Hydration
D. Filtration
25.Which minerals and in what form are present in ground water?
A. Cu & Mn in Cuprous and manganous
B. Fe & Mn in Ferric and manganous
C. Fe & Cu in Ferric and Cupric
D. Cu & Mn in Cuprous and manganous
26.How many types of wastewater treatment plants are there based on the type of wastewater?
A. 2
B. 3
C. 4
D. 2
27.On how many conditions does the intervention of wastewater depend on?
A. 3
B. 5
C. 7
D. 3
28.How many major sources of solid waste are there based on their origin?
A. 3
B. 5
C. 7
D. 3
29.Which of the below is not an idea behind solid waste management?
A. Stop waste generation
B. Disposal
C. Storage and collection
D. Stop waste generation
30.The number of functional components of solid waste management is?
A. 2
B. 4
C. 6
D. 2
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