1. What is the heat value for a 15 gram sample of refuse-derived fuel that is combusted in a calorimeter having a heat capacity of 10,500 calories/° C? The temperature rise is measured as 7°C.
- 4900 calories/gram
- 5600 calories/gram
- 7400 calories/gram
- 9300 calories/gram
2. Twenty five tons of a mixture of paper and other compostable materials has a moisture content of 18%. How many gallons of water must be added so that the moisture content is 50%? The density of water is 8.34 lb/gallon.
- 72.7 gallons
- 3840 gallons
- 6000 gallons
- 17,400 gallons
3. What is the heat value for a 15 gram sample of refuse-derived fuel that is combusted in a calorimeter having a heat capacity of 10,500 calories/° C? The temperature rise is measured as 7°C.
- 4900 calories/gram
- 5600 calories/gram
- 7400 calories/gram
- 9300 calories/gram
4. Twenty five tons of a mixture of paper and other compostable materials has a moisture content of 18%. How many gallons of water must be added so that the moisture content is 50%? The density of water is 8.34 lb/gallon.
- 72.7 gallons
- 3840 gallons
- 6000 gallons
- 17,400 gallons