Agricultural Engineering/Agricultural Engineering MCQs Set-7 Sample Test,Sample questions

Question:
 Which of the following are the solid residues from incineration?

1.Slag, fly ash, APC

2.Klink, ash, BPC

3.Gas, slag, APC

4.Liquids, ash, slag


Question:
Anaerobic digestion is generally applied to BOD wastes above ________ ppm.

1.3000

2.6000

3. 9000

4.12000


Question:
Anaerobic treatment is mediated through _______

1.Enzyme catalysis

2.Enzyme

3.Chemical

4.Sulphur


Question:
Bio filters are fed with effluent only after ____________

1.Initial settlement

2.Bio-accumulation

3.Bio-degradation

4.Bio-magnification


Question:
Chemical precipitation is used in conjunction with neutralisation.

1.True

2.False


Question:
Chemical precipitation makes the hazardous waste _________

1.Soluble

2.Insoluble

3. Volatile

4.Acidic


Question:
Chemical precipitation treatment is effective in wastewater containing _______

1.Chemicals

2.Chloride

3.Toxic metals

4.Impurities


Question:
Chemical precipitation treatment is user economic.

1.True

2.False


Question:
Compensation for lower temperatures can be achieved by reducing hydraulic and organic loading rates thereby increasing _____________

1.Retention time

2.Mixing

3.Aeration

4.Sparging


Question:
Effective preliminary treatment can also be used to remove the ____

1.Girt and rag

2.Carbon dioxide

3.Nutrients

4.Oxygen


Question:
Evaporation of liquids from hazardous waste through multiple evaporator, distillation etc. is dependent on ________

1.Melting point

2.Freezing point

3.Boiling point

4.Vapour pressure


Question:
Evaporation units may be operated without obtaining a permit if ________

1.Chemicals are used

2.Resins are associated

3.Unit is enclosed

4.Waste is reused


Question:
Evaporator must have sufficient disc engaging space to achieve ________

1.Separation

2.Chemicals

3.Boiling

4.Pressure


Question:
Ferrous materials are combustible.

1.True

2.False


Question:
In the exposed lands, ______ are used to assist rotation during harsh weather conditions?

1.Wind vanes

2.Water sprayer

3.Flow bed

4.Motor drives


Question:
Ion exchange is an irreversible process.

1.True

2.False


Question:
Ion exchange is widely used to remove _________

1.Heavy metals

2.Toxic heavy metals

3.Minerals

4.Salts


Question:
Mechanical mixing of waste ensures ________

1.Flash point

2.Even distribution

3.Hydrocarbon mixing

4.Less water requirement


Question:
Most suitable treatment method for electroplating discharge is ____________

1.Reduction process

2.Ion exchange

3.Waste analysis

4.Chemical analysis


Question:
Non-methanogenic and methane-producing organisms effect anaerobic treatment.

1.True

2.False


Question:
Organic gas from condensation can be used as fuel.

1.True

2.False


Question:
Precipitation by ___________ is widely used method for treating hazardous waste.

1.Calcium hydroxide

2.Sodium hydroxide

3.Potassium hydroxide

4.Lead oxide


Question:
Residence time of waste in combustion zone is ________ seconds.

1.1

2.2

3.3

4.4


Question:
Resins can remove specific substances in a waste solution.

1.True

2.False


Question:
Sodium and potassium ions cause strong inhibition above ________ ppm.

1.10

2.100

3.1000

4.10000


Question:
Soluble ions of heavy metals are toxic above _______ ppm in industrial waste.

1.1

2.2

3.3

4.4


Question:
Steel tubes used in multiple effect evaporator are placed on surface.

1.True

2. False


Question:
The environmental issue caused by chemical precipitation is _________

1.Chemical silt

2.Salts

3.Liquid matter

4.Degradation


Question:
The gases produced from anaerobic degradation process are ________ and ________

1.Nitrogen, sulphur

2.Acetate, nitrate

3.Carbon, methane

4.Methane, sulphur


Question:
The residues produced from evaporation treatment is _________

1.Less

2.More

3.Undetermined

4. No residue


Question:
The temperature range for anaerobic process is ________ and ______ degree Celsius.

1.10-20, 20-30

2.32-37, 40-55

3.10-40, 40-55

4.10-50, 20-47


Question:
The treatability of the hazardous waste depends upon ________ content.

1.Carbon

2.Hydrocarbon

3.Nitrate

4.Sulphur


Question:
Thermal processing reduces hazard from waste.

1.True

2.False


Question:
Thermal treatment technologies are differentiated by ___________

1.Type of grate

2.Chemicals

3.Energy

4.Temperature


Question:
What is the emission limit for dioxins as per European Union?

1.0.1

2.0.2

3.0.3

4.0.4


Question:
Which of the following gas is toxic to methanogenic bacteria?

1.Carbon

2.Sulphur

3.Nitrogen

4. Oxygen


Question:
Which of the following is another name given to conventional bio filters?

1.Percolating filter

2.Filter cake

3.Injection recovery

4.Bio-luminescence


Question:
Which of the following is possible from ion exchange treatment?

1.Metal recovery

2.Oxidation reduction

3.Waste analysis

4.Chemical analysis


Question:
Which of the following is the end product of anaerobic degradation?

1.Liquor

2.Nitrogen

3.Lead

4.Sulphur


Question:
Which of the following parameters effect operating conditions of anaerobic treatment process?

1.Influent quality

2.Chemicals

3.Hydrocarbon

4. Sulphur


Question:
Which of the following resin can be used to remove copper plating rinse water?

1.ResinTech’s CG-8 (Na)

2.ResinTech’s CG-8 (K)

3.ResinTech’s CP-8 (Na)

4.ResinTech’s PG-8 (Na)


Question:
Which of the following waste characteristic is considered for combustion?

1.Flash point

2.Energy point

3.Burning point

4.Melting point


Question:
Which of the following waste is not applicable for evaporation?

1.Calcium

2.Iron

3.Copper

4.Methylene chloride


Question:
_______ is used for precipitation of heavy metals.

1.Calcium hydroxide

2.Lime

3.Potassium hydroxide

4. Lead oxide


Question:
_______ treatment is suitable for metal salts bearing wastes.

1.Neutralisation

2.Chemical precipitation

3.Hydrolysis

4.Solvent extraction


Question:
________ % of waste by weight remains after combustion.

1.20-35

2.20-40

3.40-50

4.30-50


Question:
________ emission is cited as an issue from incineration?

1.Carbon

2.Dioxin

3.Sulphur

4.Nitrogen


Question:
________ of hazardous waste plays a major role in designing combustion unit.

1.Calorific value

2.Chemical value

3.Energy value

4.Fuel value


Question:
_________ wastes can be treated in evaporator.

1.Aqueous inorganic

2.Organic

3.Aqueous organic

4.Dry


Question:
__________ from combustion of waste reduces cost.

1.Chemical analysis

2.Metals

3.Material recovery

4.LCA


More MCQS

  1. Dairy Engineering MCQs
  2. Dairy Engineering MCQs Set-2
  3. Dairy Engineering MCQs Set-3
  4. Agricultural Engineering MCQs
  5. Agricultural Engineering MCQs Set-1
  6. Agricultural Engineering MCQs Set-2
  7. Agricultural Engineering MCQs Set-3
  8. Agricultural Engineering MCQs Set-4
  9. Agricultural Engineering MCQs Set-5
  10. Agricultural Engineering MCQs Set-6
  11. Agricultural Engineering MCQs Set-7
  12. Agricultural Engineering MCQs Set-8
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!