The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web...

第1题

[单选题] The crankshaft is of the semi-built type, with the （） being shrunk into the forged or cast steel crank throws.

A、journal B、crank-pin C、main bearing D、large end of connecting rod

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第2题

[单选题] The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

A、shrunk into B、expanded into C、extended into D、designated into

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第3题

[单选题] The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

A、being shrunk into B、to be shrunk into C、to be shrunk with D、shrinking into

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第4题

[单选题] In the （） refrigeration compressor one end of the crank shaft extends through the crankcase house for connection, via a coupling or pulley, to an external drive motor.

A、open-type B、hermetic C、semi-hermetic D、all the above

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第5题

[单选题] If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）

A、Fixed CO₂,semi-portable CO₂, then hand portable CO₂ B、Semi-portable CO₂, fixedCO₂, then hand portable CO₂ C、Hand portable, semi-portable CO₂, then as a last resort the fixed CO₂ system D、Hand portable, fixed CO₂, then as a last resort the semi-portable CO₂

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第6题

[单选题] When there are small differences between the heights of two successive high tides or two successive low tides，the tides are called（）.

A、Diurna B、Semi-diurnal C、Solar D、Mixed

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第7题

[] You have a firewall enforcer protecting sensitive internal resources in a data center. The network traversed by endpoint traffic is semi-trusted, so you need to encrypt the traffic between the endpoints accessing the resources and the firewall enforcer.Which type of policies provide this level of protection?（）

A、A. resource access policies B、B. Host Enforcer policies C、C. source IP enforcement policies D、D. IPsec enforcement policies

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第8题

[单选题] Today, crankshafts for large 2-stroke crosshead engines are of the （）type.

A、semi-built B、built-up C、solid forged D、individual forged

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第9题

[多选题] The two focuses of the education reforms in the mid-1980s were（）

A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above

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The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.

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