Self-Test C-1.5: Use Formula to Calculate Capacity
Complete Self-Test C-1.5 and check your answers.
- How much water, in imperial gallons, will a cylindrical tank hold if it is 12″ in diameter and 43″ in height?
Answer: imp. gal.
- How many US gallons of water would be required to fill a pool 10 feet in diameter and 2 feet deep?
Answer: US gal.
- Refer to the horizontal tank in Figure 1 to answer the following questions:

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- How many imperial gallons would the tank hold when completely full?
Answer: imp. gal.
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- How many imperial gallons would the tank hold if it were 80% full?
Answer: imp. gal.
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- How much would the water weigh (lbs.) if the tank were 80% full?
Answer: lbs.
- A cooling tower basin is 6 m long (20 ft.), 3 m wide (10 ft.) and 450 mm (18 in.) deep.
- How many litres would the basin hold when completely full?
Answer: L
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- How many US gallons would the basin hold if it were 75% full?
Answer: US gal.
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- What would the water weigh (lb.) if the basin were 60% full?
Answer: lb.
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- If the manufacturer required a 40:1 ratio of water to corrosion inhibiter added to the basin, how many imperial gallons of inhibitor would be required if the basin were completely full?
Answer: imp. gal.
- The capacity of the pipe and tank shown in Figure 2 is
Answer: L

- After 4,000 US gallons of water were added to a large water tank that was already filled to [latex]\frac{3}{4}[/latex] of its capacity, the tank was then at [latex]\frac{4}{5}[/latex] of its capacity. How many US gallons of water does the tank hold when filled to capacity?
Answer: US gal.
Answer Key: Self-Test C-1.5 is on the other page.