Solid Waste Management Questions
Solid & Hazardous Waste Management (Code: 393)
Q1. A city with a population of 1 million generates 600 tonnes of municipal solid waste per day. What is the per capita waste generation rate?
A) 0.3 kg/capita/day
B) 0.6 kg/capita/day
C) 1.2 kg/capita/day
D) 6.0 kg/capita/day
B) 0.6 kg/capita/day
Calculation: Total waste in kg = 600 tonnes × 1000 kg/tonne = 600,000 kg. Per capita generation = 600,000 kg / 1,000,000 people = 0.6 kg/capita/day.
Q2. If a landfill receives 500 tonnes of waste daily with a compacted density of 0.8 tonnes/m³, what is the volume required per day?
A) 400 m³
B) 500 m³
C) 625 m³
D) 800 m³
C) 625 m³
Calculation: Volume = Mass / Density = 500 tonnes / 0.8 tonnes/m³ = 625 m³.
Q3. A composting facility processes 100 tonnes of organic waste per week. If the composting process takes 6 weeks, what is the minimum capacity of the composting facility?
A) 100 tonnes
B) 300 tonnes
C) 600 tonnes
D) 1200 tonnes
C) 600 tonnes
Calculation: Capacity = Waste processed per week × Processing time = 100 tonnes/week × 6 weeks = 600 tonnes.
Q4. A waste collection truck has a capacity of 10 tonnes. If the total waste to be collected in a route is 40 tonnes, what is the minimum number of trips required?
C) 4
Calculation: Number of trips = Total waste / Truck capacity = 40 tonnes / 10 tonnes/trip = 4 trips.
Q5. If 80% of households in a community segregate their waste at source and the community has 5,000 households, how many households do not segregate their waste?
A) 500
B) 800
C) 1000
D) 1500
C) 1000
Calculation: Percentage of households not segregating = 100% - 80% = 20%. Number of households not segregating = 20% of 5,000 = 0.20 × 5,000 = 1,000 households.
Q6. A hospital generates 2 kg of biomedical waste per bed per day. If the hospital has 250 beds, what is the total biomedical waste generated per week?
A) 350 kg
B) 1,750 kg
C) 3,500 kg
D) 7,000 kg
C) 3,500 kg
Calculation: Total waste per week = (2 kg/bed/day) × 250 beds × 7 days/week = 3,500 kg.
Q7. A city generates 200 tonnes of plastic waste per month. If 60 tonnes are recycled, what is the recycling rate?
A) 20%
B) 25%
C) 30%
D) 40%
C) 30%
Calculation: Recycling Rate = (Tonnes recycled / Total tonnes generated) × 100% = (60 / 200) × 100% = 30%.
Q8. A landfill receives 1000 m³ of rainfall annually. If 40% of the rainfall percolates as leachate, how much leachate is generated per year?
A) 200 m³
B) 400 m³
C) 600 m³
D) 800 m³
B) 400 m³
Calculation: Leachate generated = Total rainfall × Percolation rate = 1000 m³ × 40% = 1000 m³ × 0.40 = 400 m³.
Q9. A hazardous waste storage facility is designed for 500 drums, each holding 200 litres. What is the total storage capacity in cubic metres?
A) 10 m³
B) 50 m³
C) 100 m³
D) 200 m³
C) 100 m³
Calculation: Total volume in litres = 500 drums × 200 litres/drum = 100,000 litres. Since 1 m³ = 1000 litres, total capacity = 100,000 litres / 1000 litres/m³ = 100 m³.
Q10. If 1 tonne of waste yields 600 kWh of energy upon incineration, how much energy is recovered from 50 tonnes?
A) 3,000 kWh
B) 12,000 kWh
C) 30,000 kWh
D) 60,000 kWh
C) 30,000 kWh
Calculation: Total energy recovered = Energy yield per tonne × Total tonnes = 600 kWh/tonne × 50 tonnes = 30,000 kWh.
