题目内容
(请给出正确答案)
提问人:网友fupeng
发布时间:2022-01-06
[主观题]
【单选题】Which screw thread term is the nominal diameter?
A、Major diameter
B、Minor diameter
C、Pitch diameter
D、Crest
简答题官方参考答案
(由简答题聘请的专业题库老师提供的解答)
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A、Major diameter
B、Minor diameter
C、Pitch diameter
D、Crest
A、A. 2, 4 and 6
B、B. 1, 5 and 6
C、C. 3, 4 and 5
D、D. 1, 2 and 3
A. may jam against the stops
B. will not automatically position the boat at the embarkation station
C. screw may come out of the sheath
D. will chafe against the falls and may cause their failure
A、Gravity separators (drop-out boxes)
B、Baghouse collectors
C、Wet scrubbers
D、Electrostatic precipitators (ESPs)
A、d
B、0.85d
C、0.75d
D、1.1d
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