Профессиональное развитие будущих инженеров-строителей средствами иностранного языка: Лексический практикум по английскому языку. Трубникова Н.В. - 88 стр.

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2. А gas boiler of 43 kW heat output and 75% efficiency is sup-

plied from a meter by a pipe 23m long. The resistance of the fit-

tings amounts to 25% of the pipe length. Find the gas supply

pipe size needed.

3. Calculate the actual gas pressure drop through a 22 mm pipe

carrying 0.81 l/s when the pipe length is 12m and the fittings re-

sistance amounts to 20% of its length.

Block D

Creative work

1. Organize the business-like play «At the exhibition of gas appli-

ances.

2. Present the project «Gas supply in modern Russia».

3. Prepare the abstract according to the topic «Gas’s types».