Pipeline foundation questions
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—Multiple-choice question: 1. In pipeline construction drawings, the main pipelines are usually represented by ( ). A、Thick solid line, B、Thin solid line, C、Thin dashed line, D、Dashed line. 2、The test pressure for general service pipelines is ( ) times the working pressure, but it must not be less than the working pressure plus 0.3 MPa. A、1.25, B、1.5, C、2.0. 3、A pipeline with a pressure of 1.2 MPa is considered a ( ) pipeline. A、Low-pressure, B、Medium-pressure, C、High-pressure. 4、The height of indoor fire hydrants above the ground is ( ) meters. A、1.1, B、1.2, C、1.3.
1、A； 2、A ； 3、A ； 4. A.
1、A 2、A 3、B 4、A
AABB 1# Yin Xuewu
Correct answers: 1. A, thick solid line; 2. B, 1.5 times; 3. B, medium voltage; 4. A, 1.1
1.B 2.A 3.B 4.B