TLE Practice Test

This question tests knowledge of different types of valves used in plumbing systems. A ball valve is a quarter-turn valve that provides quick shutoff and is commonly used for isolating sections of plumbing for maintenance or repairs. Understanding the functions and applications of various valves is crucial for proper plumbing system design and maintenance.

This question tests knowledge of basic plumbing tools and their applications. A pipe wrench is specifically designed for gripping and turning pipes and fittings. Understanding the correct tools for different plumbing tasks is essential for effective and efficient work.

Plumbing ventilation is designed to carry sewer gas out of the system and relieve pressure within the drainage pipes. This helps prevent harmful gases from entering the living spaces and ensures proper flow and functioning of the drainage system. The other options describe other functions or benefits of plumbing systems but not the primary purpose of ventilation.

A down spout is a pipe that conveys rainwater from the roof to the ground. While gutters collect rainwater, they channel it into down spouts. Conductors and vents have different roles in the plumbing system.

The standard slope for a soil pipe is typically around 2%, which ensures proper drainage and flow of waste. A slope of 1% may not provide enough gradient for efficient drainage, while 5% and 10% are too steep, potentially causing problems with water flow and pipe pressure.

A minimum safe distance of 15 meters is recommended between the source of potable water and a septic tank to prevent contamination of the water supply. This distance helps ensure that any potential leakage or seepage from the septic tank does not infiltrate the potable water source.

PVC pipes commonly come in standard lengths of 10 feet, which is equivalent to about 3 meters. This standard length facilitates easier handling, installation, and fitting during plumbing projects.

The standard length for G.I. (galvanized iron) pipes is typically 6 feet. Knowing this length helps in estimating the number of pipes needed to cover a certain distance from a house to the main supply line.

An emery board is a nail care tool used to shape and smooth the free edge of the nails. It does not affect the cuticle, lunula (the white crescent at the base of the nail), or the root of the nail.

Round nails are often recommended for short nails as they help to give a more elongated appearance and prevent the nails from looking too stubby. Square nails may appear too harsh for short nails, and pointed or oval shapes are generally less flattering for very short nails.

Applying the top coat is the final step in both manicuring and pedicuring. The top coat seals the color and provides a glossy finish. Other steps are performed earlier in the process.

Face cleansers are essential for maintaining healthy skin as they remove dirt, oil, and impurities. Toners, lotions, and serums also play important roles but are secondary to cleansing.

Applying a cleansing cream is the first step in giving a facial, as it prepares the skin for further treatments by removing impurities and makeup. Other steps follow in the process.

A hot oil mask facial is particularly beneficial for dry, scaly skin and can help to deeply hydrate and reduce the appearance of wrinkles. Packs and masks also help, but the hot oil treatment is more intensive.

The cosmetologist should work closely with the client’s physician to ensure that any facial treatments are aligned with the medical care being provided. It is essential to collaborate to avoid any adverse effects.

While reducing oiliness and cleaning the face are appropriate measures, applying moisturizer is typically not restricted and can be beneficial in managing acne-prone skin when used correctly.

Cutting hair that is both wet and dry can lead to uneven results due to differences in hair texture and length when dry versus wet. Consistent hair conditions are important for an even cut.

Starting at the nape of the neck is effective for removing tangles as it allows for a systematic approach to detangling, ensuring all hair is evenly and thoroughly addressed.

The Philippine Electrical Code specifies a fuse rating of 20 amperes for lighting outlets to provide adequate protection and prevent electrical hazards.

A Triple Pole Double Throw Switch is used to control a three-phase system from two different power sources.

An alternator generates alternating current (AC), whereas other devices listed are not typically sources of AC.

Secondary batteries, such as rechargeable batteries, can be recharged after their chemical energy is depleted.

Geothermal energy is derived from the internal heat of the Earth.

The total resistance of resistors in parallel is given by 1 / R_total = 1 / R1 + 1 / R2 + ... + 1 / R18. For 18 resistors of 36 ohms, R_total is approximately 2 ohms.

The power factor is calculated as Power / (Voltage x Current). Thus, 110 W / (110 V x 1.2 A) = 0.833.

For resistors in parallel, the equivalent resistance is one-third of the value of one resistor when all resistors are equal.

Flat cable assembly is typically used for exposed work only, not concealed work.

A surface type device extends beyond the wall surface and is visible.

When lamps are connected in series, the voltage across each lamp is reduced, resulting in less light output.

Conductors of size 8.0 mm squared and larger are required to be stranded when installed in raceways.

Margarine is often avoided in low-cholesterol diets due to its high trans fat content.

Breakfast is often considered the most important meal of the day as it breaks the overnight fast and provides essential energy for the day.

Planning meals to be expensive and entail high costs is not a principle of meal planning.

Dirty plates should not be stacked on the guest table; they should be cleared separately.

Vitamins regulate physiological processes in the body.

With 16g of carbohydrates, the kilocalorie value can be estimated using the caloric value of carbohydrates (4 kcal/g), which equals 64 kcal for 25g of biscuit.

Eggs act as a binding agent when used to hold ingredients together.

Roux is a mixture of flour and fat (usually butter) cooked together to thicken sauces and soups.

The caloric value can be estimated by calculating the calories from fat (9 kcal/g), carbohydrates (4 kcal/g), and protein (4 kcal/g).

Waste pipes carry wastewater from fixtures other than toilets.

A check valve prevents backflow by allowing water to flow in only one direction.

Vent pipes are required by the National Plumbing Code to ensure proper drainage system function.

A reducer is used to connect pipes of different sizes, reducing the diameter of the pipe flow.

A pipe wrench is used to grip and turn pipes for tightening or loosening.

A plumber’s snake is a tool used to clear clogs in pipes, often with a hook or corkscrew end.

A gate valve is typically used to shut off the flow of water completely.

Teflon tape is used to seal threaded pipe joints and prevent leakage.

A minimum distance of 15 meters is required to ensure the safety of potable water from contamination by septic tanks.

G.I. pipes are often available in 6-foot lengths for plumbing installations.