TLE Practice Test

A "waste pipe" is specifically designed to convey only liquid waste. A soil pipe handles solid and liquid waste, a vent pipe aids in air circulation, and a main pipe can refer to the principal pipe in a system.

A gate valve is commonly used to shut off the flow of water in a plumbing system. It is designed to completely stop the flow with a 90-degree turn. While angle and globe valves can control water flow, they are not typically used for complete shut-off. A check valve prevents backflow, not for shutting off flow.

A plug is used to stop the flow of water from a female adapter. While caps are used for male threads, plugs fit inside female threads to seal them. A coupling is used for connecting pipes, and an elbow changes the direction of the pipe.

The correct order for cleaning nails is to first cut and file the nails to the desired length and shape. Next, apply cuticle remover to soften the cuticles. Then, push back the cuticles, and finally, trim any excess cuticle. This process ensures proper cleaning and grooming of the nails.

Direct current (DC) flows in a single direction, as opposed to alternating current (AC), which changes direction periodically.

Connecting appliances in parallel ensures that each one operates independently, and they receive the full voltage of the power supply, which is why parallel connections are preferred.

A solar cell produces electric current when exposed to light.

An ohmmeter is used to detect short circuits by measuring resistance; a short circuit will show very low resistance.

Galvanized pipes are commonly used for potable water, though other types like CPVC and PEX are also used.