Q:underwater does air move faster thru metal or plastic tubing?

it's exactly the same. unless the plastic tubing is under pressure by the water. if it's the same size tube, it won't matter.

Q:Can plastic tubes be used for pool installations?

Yes, plastic tubes can be used for pool installations. They are commonly used for the plumbing system of pools to transport water to and from the pool, as well as for other pool-related purposes such as drainage and filtration systems. Plastic tubes are lightweight, durable, and resistant to corrosion, making them a suitable choice for pool installations.

Q:Can plastic tubes be used for storing powders or granules?

Yes, plastic tubes can be used for storing powders or granules. They are commonly used in various industries such as pharmaceutical, food, and chemical, as they provide a convenient and hygienic storage solution. Plastic tubes offer good barrier properties, protecting the contents from moisture and external contaminants. Additionally, they are lightweight, easy to handle, and can be sealed tightly to ensure the integrity of the stored powders or granules.

Q:There is a plastic tube under the motorcycle

It doesn't matter. It's oil and gas

Q:My house is two floors, though I think it was originally a one-story cape cod, and the upstairs was a single semi-second floor/attic. Anyways, the attic is now higher up, but the walls still slope on the sides. The air/heating unit is in the crawl space, duct work runs directly to vents/returns on the first floor, but for the second floor there are these two really large plastic(?) pipes that run up to the second floor from which I believe the ductwork is distributed. What are these called?

Vertical duct work. In general, if forced air, heated, cooled or even unconditioned, goes through it it is called duct work, unless it is an accessory / fitting such as a grille, diffuser, register etc. It's called duct work or vertical duct work if you would like.

Q:In the begging she chops off her arm but she puts the yellow thing around at the top her arm. WHY!!!!!!!!!!!!!!!!!!!!!!!!!!!!

You mean like she tied it tightly around her upper arm? To slow down circulation to her arm, so she wouldn't bleed out and die so fast when she did.

Q:What are the different end cap options for plastic tubes?

Some of the different end cap options for plastic tubes include screw caps, snap-on caps, push-on caps, flip-top caps, and threaded caps. These options provide varying degrees of security, convenience, and ease of use for sealing and accessing the contents of the tube.

Q:Is the white plastic pipe hanging on the outside of the air conditioner broken?

The plastic pipe is discharging the condensed water, long time outside bare weathered, if your air conditioner indoor machines Water Leakage, Flanagan plastic outdoor water pipe flow does not affect the downstairs neighbors if you can not ignore it. The 2 copper tubes are the refrigerant inlet and return pipe. If a large area of leakage in the outside, affecting the cooling effect, it is best to find a maintenance for you to do the next insulation.

Q:Are plastic tubes suitable for use in the telecommunications industry?

Yes, plastic tubes are suitable for use in the telecommunications industry. They are lightweight, flexible, and can easily be installed in various settings. Plastic tubes are also resistant to corrosion and offer protection to the cables and wires used in telecommunications systems.

Q:Can plastic tubes be used for storing perishable goods?

No, plastic tubes are not suitable for storing perishable goods as they do not provide an airtight or insulated environment needed to maintain the freshness and prevent spoilage of perishable items.