Answer :
Final answer:
The question focuses on the pressure that low pressure boiler pipes can carry. Based on common definitions in the engineering field, low pressure boilers are those not exceeding 15 psi. Therefore, the answer to the question is A. 15 psi.
Explanation:
The subject of your question focuses on low pressure boiler pipes specifically as it relates to the pressure they can carry. In the context of boilers, 'low pressure' often refers to a system where the steam pressure does not exceed 15 psi. Therefore, the correct answer to your question is A. 15 psi. This simply means that these systems are designed not to carry steam pressure above 15 psi.
Relating it to your provided exercises, remember that pressure plays a significant role in systems like turbines. In challenge problem 87, for instance, the turbine chamber and steam condenser rely on a significant pressure difference for the effective functioning of the turbine. If there is a decrease in pressure such as a result of a leak, this impacts the functioning of the system as steam does not pass optimally through the turbine chamber.
Learn more about boiler pipe pressure here:
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