Heat exchanger Samenvattingen, Aantekeningen en Examens

HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A Q: When starting up a dual system, the temperature rise method for determining airflow cannot be used with compressor cycle of the heat pump because: Answer: The capacity of the system varies too much with outdoor temperature. Q: The flame pattern a technician would expect to see on a properly operating single stage gas furnace equipped with "in shot" type burner is a:...

HVAC Gas Heat Certification Exam Prep (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade QUESTION Describe the difference between a single-rod (local sensing ) and dual-rod (remote sensing system as the pertain to flame rectification. Answer: Flame rectification system can be classified as eatiher single rod. (local sensing) or dual rod (remote sensing) single rod, consist of an igniter and sensor all in one-rod, Dual-rod system use a separate ig...

A condensate line should ______________. a. empty directly into the waste drain line b. end 1 inch above the waste drain line c. not drain into the waste drain line d. extend at least 1 inch into the waste drain line - Answer b. end 1 inch above the waste drain line A condensing furnace _____________. a. works like an air conditioner, except that it heats instead of cools b. is a furnace covered in condensation c. is more efficient than conventional furnaces and uses a secondary heat exc...

PSI National Home Inspector Practice Exam 2024 Questions and Answers Already Graded A+. 1. Which of the following describes partial vapor pressure? A) Water vapor has a tendency to disperse itself equally in the available air. B) Water vapor causes new homes to require house wrap. C) Water vapor is common with forced induction natural gas furnaces. D) Water vapor is an indication of sick house syndrome.: correct answer- A) Water vapor has a tendency to disperse itself equally in the availa...

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...

An up flow furnace - Has the return air at the bottom Of the six regular grades of fuel oil,The grade most commonly used in residential and light commercial heating systems is No. - 2 How much heat is produced when 2 gallons of No. 2 fuel oil is burned? - 280,000 What could be the cause of a high steak temperature - Too much air How would you prove a furnace was stopped up with soot in the heat exchanger - Draft gauge at the inspection door What is the function of a heat exchanger - To ex...

What type of pump uses the throwing force of a rapidly revolving impeller? CENTRIFUGAL Which pump uses a piston to move a fluid? reciprocating The indirect heat exchanger that uses one tube inside another tube is known as what type construction? DOUBLE TUBE Heat transfer from physical contact between two substances is known as CONDUCTION What is used to connect turbines and reduction gear while allowing slight misalignment? HIGH SPEED FLEXIBLE COUPLINGS

PSI National Home Inspector Practice Exam 2024 Questions and Answers Already Graded A+. 1. Which of the following describes partial vapor pressure? A) Water vapor has a tendency to disperse itself equally in the available air. B) Water vapor causes new homes to require house wrap. C) Water vapor is common with forced induction natural gas furnaces. D) Water vapor is an indication of sick house syndrome.: correct answer- A) Water vapor has a tendency to disperse itself equally in the availa...

The weight of water vapor in a given amount of air (Grains per cubic foot) - Answer-Absolute Humidity Pressure measured with a base of zero - Answer-Absolute Pressure A temperature scale using absolute zero as a reference - Rankin or Kelvin Scale (may be measures in degrees C or F) - Answer-Absolute Temperature Theoretical temperature at which all molecular activity ceases = -273.16 C or -456.69 F - AnswerAbsolute Zero By approximately how much (%) does a start capacitor increase motor tor...

why was the ASME formed? - correct answer develop tech info, high standard of design and education, personal and professional development,ethical conduct, solutions for tech problems CSA B51 committee? - correct answer provincial and territorial jurisdiction, boiler manufacturers, insurance companies what is the purpose of B52? - correct answer provide safe design, construction, installation, operation, repair of refrigeration and air con. promote uniform requirements ASME 1 - c...