Air diffuser - Study guides, Class notes & Summaries

NIFE ENGINES 2024 EXAM WITH 210 REAL EXAM QUESTIONS AND CORRECT ANSWERS| GRADE A+ What is Bernoulli's theorem CORRECT ANS - Any incompressible fluid that passes through a convergent opening, velocity increase, pressure decreases What is Bernoulli's Equation CORRECT ANS - Pt=Ps+Pk Which type of air is compressible? CORRECT ANS - Supersonic air What happens to Velocity and Pressure in a nozzle CORRECT ANS - Pressure decreases, velocity increases What happens to Velocity and ...

The primary purpose of using flux when soldering copper or brass parts is to: prevent oxidation. Light commercial outdoor condensing units that are installed in geographic areas where snowfalls can be heavy must be mounted: with wind barriers on all sides. Proper ductwork connections and sealing is critical to good system performance. Conditions are: Return side air leak of 15 % in a ventilated attic 2.5 ton system rated at 1,000 CFM. Attic Air 95°F The loss in delivered capacity is...

ABSA 4B Exam Questions with 100% Correct Answers 2024/2025 - answerWarm Air Heating System Equipment In a warm air heating system the cold air return registers are located a) in exterior walls b) in interior locations c) under windows d) in floors e) in ceilings - answerB The major disadvantage of an electric resistance coil furnace for warm air heating is a) the high cost of electricity b) the danger from electric shock c) the high cost of maintenance d) the large size of the fur...

Power Engineering ABSA 4B (Panglobal 4th Class ABSA study set) Questions With 100% Correct Answers. After a bearing has been removed for cleaning, it should be soaked for a period of _____ hours in clean solvent. A) 12 to 16 B) 12 to 14 C) 14 to 16 D) 10 to 12 E) 15 to 16 A If an oil's viscosity changes a great deal with little temperature change, it will then have a: A) High pour point B) High carbon residue C) High viscosity index D) Low pour point E) Low viscosity index ...

ABSA 4b Exam Latest Version. Warm Air Heating System Equipment In a warm air heating system the cold air return registers are located a) in exterior walls b) in interior locations c) under windows d) in floors e) in ceilings B The major disadvantage of an electric resistance coil furnace for warm air heating is a) the high cost of electricity b) the danger from electric shock c) the high cost of maintenance d) the large size of the furnace e) the location of electrical wi...

HVAC Journeyman Final Prep Study Exam Questions and Answers In wood structures, notches on the end of the joists shall not exceed ___________ the joist depth. A. one fourth B. 6% of C. 1/2 of D. 10% of - CORRECT ANSWER-A. one-fourth Underground inspection shall be made after trenches or ditches are excavated and bedded, piping installed, and ___________ backfill is put in place. When excavated soil contains rocks, broken concrete, frozen chunks, and other rubble that would damage...

HVAC NATE Heat Pump Exam Question With Solutions On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? - ANS 6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? - ANS Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? - ANS Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the...

A bacterial infection under sculptured nails can be caused by trapped dirt and: - Moisture A blow-dryer diffuser is designed to make air flow: - More softly A cell mass that is abnormal is called a: - Tumor A common kind of tinea unguium is distinguished by: - Whitish patches on the nail surface A conditioning agent, also called scalp astringent lotion, is used to: - Remove oil accumulation A C-shaped curl results if you wrap hair around a roller: - One turn A finger with an infection shou...

After steam gives up its energy and changes its phase to a liquid, it is referred to by what name? correct answers Condensate Atmospheric boilers utilize natural draft generated by the stack for the introduction of combustion air into the boiler. correct answers true One of the advantages of using electricity as a fuel is that it does not require combustion air. correct answers true An open system is identified by what condition? correct answers Fluid surface is exposed to the atmospher...

The science that deals with the study of microorganisms called bacteria Correct Answer Bacteriology One-celled microorganisms that exists almost everywhere also known as germs and microbes Correct Answer bacteria Pathogenic bacteria that causes abscesses, pustules, pimples and boils Correct Answer staphylococci Bacteria that is round shaped Correct Answer cocci Bacteria that is rod shaped and is the cause of tuberculosis Correct Answer bacilli Bacteria that is corkscrew- shaped Co...