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【单选题】

Zinc rods are installed in the refrigeration system （）.

A、liquid strainer

B、liquid receiver

C、saltwater condenser

D、evaporator

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更多“Zinc rods are installed in the refrigeration system （）.”相关的问题
第1题
[单选题] Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）

A、Decreased connecting rod bearing clearance  B、Increased connecting rod bearing clearance  C、Decreased compression ratio  D、Increased compression ratio  

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第2题
[单选题] Masts and derricks of cargo ships are made of（）.

A、steel  B、copper  C、bross  D、zinc  

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第3题
[单选题] Two rams of the hydraulic gear are linked at their outer ends to （） by a crosshead and swivel block.

A、the piston rod  B、the tiller arm  C、the connecting rod  D、the rudder  

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第4题
[单选题] The cast iron guide-ways for （） are attached to the top section and seal off the crankcase.

A、the connecting rod  B、the cross-head  C、the piston rod  D、the air box  

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第5题
[] Masts and derricks of cargo ships are made of（）.

A、A.steel  B、B.copper  C、C.bross  D、D.zinc  

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第6题
[单选题] The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit.

A、connecting rods  B、main bearing  C、column  D、tie rods  

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第7题
[] The slippers run （） in the crosshead guides as the piston and rod are （）and prevent the top of the connecting rod from moving sideways.

A、A.up and down；reciprocating  B、B.up and down；rotating  C、C.back and forth；reciprocating  D、D.back and forth；rotating  

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第8题
[单选题] Where are the zinc plates located?（）

A、saltwater side of the condenser  B、refrigerant side of the condenser  C、in the evaporator coils  D、in the suction strainer  

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第9题
[单选题] In order to increase the wearing resistance, the cylinder liner surfaces are sometimes （）.

A、aluminum-plated  B、bronze-plated  C、zinc-plated  D、chromium-plated  

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