海船船员考试

单选题The all-purpose nozzle will produce a fog spray when you().A pull the nozzle handle all the way back toward the operatorB pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzleC push the nozzle handle for

题目
单选题
The all-purpose nozzle will produce a fog spray when you().
A

pull the nozzle handle all the way back toward the operator

B

pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle

C

push the nozzle handle forward as far as it will go

D

insert a fog applicator between the fire hose and nozzle

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相似问题和答案

第1题:

The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to ______.

A.a difference in water pressure

B.the method of breaking up the water stream

C.the length of the applicator

D.All of the above


正确答案:B

第2题:

The high-velocity fog tip used with the all-purpose fire fighting nozzle should always be ______.

A.Attached by a chain

B.Coated with heavy grease to prevent corrosion

C.Painted red for identity as emergency equipment

D.Stored in the clip at each fire station


正确答案:A

第3题:

One advantage of the all-purpose nozzle is that it ______.

A.can fit any size hose

B.converts a stream of water into a fog

C.increases the amount of water reaching the fire

D.can spray two streams of water at the same time


正确答案:B
多用喷嘴的一个优点是能把水柱变为水雾。

第4题:

单选题
The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as().
A

Radiation fog

B

Frontal fog

C

Convection fog

D

Advection fog


正确答案: A
解析: 暂无解析

第5题:

单选题
In a jerk pump, the amount of fuel that will be forced through the spray nozzle on each upward stroke of the plunger depends on ()
A

the pump supply pressure

B

the slope of the fuel cam

C

how the plunger is rotated

D

the number of sleeve segments engaged with the rack


正确答案: C
解析: 暂无解析

第6题:

If a firefighting situation calls for low-velocity fog you would ______.

A.order the engine room to reduce pressure on the fire pump

B.put the lever on an all-purpose fire nozzle all the way forward

C.attach a low-velocity fog applicator with the nozzle shut down

D.put the lever on an all-purpose fire nozzle all the way back


正确答案:C

第7题:

单选题
If a firefighting situation calls for low-velocity fog you would().
A

order the engine room to reduce pressure on the fire pump

B

put the lever on an all-purpose fire nozzle all the way forward

C

attach a low-velocity fog applicator with the nozzle shut down

D

put the lever on an all-purpose fire nozzle all the way back


正确答案: B
解析: 暂无解析

第8题:

A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?

A.When the towing vessel enters the fog

B.When the drilling rig enters the fog

C.When the towing vessel can no longer be seen from the rig

D.Immediately


正确答案:D

第9题:

单选题
You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?().
A

Your speed must be reduced to bare steerageway

B

A look-out is not required if the radar is on

C

Fog signals are only required when a vessel is detected by radar

D

The radar should always be kept on a short-range scale


正确答案: A
解析: 暂无解析

第10题:

单选题
On the all-purpose nozzle,the position of the valve when the handle is all the way forward is().
A

shut

B

fog

C

solid stream

D

spray


正确答案: B
解析: 暂无解析

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