Combustion Study guides, Revision notes & Summaries

Chapter Test 4 (IFSTA 7th Edition) Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] A. a catalyst. B. an oxidizer. C. free radicals. D. a reducing agent. - ANSWER B. an oxidizer When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: (118) [4.3.11] A. dissolutio...

PAX Science NLN Exam 2023/2024 ACTUAL EXAM REVISION 400 QUESTIONS WITH ANSWERS A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains A.) carbon dioxide. B.) hydrogen. C.) oxygen. D.) nitrogen. ANSWER ~: carbon dioxide. A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? A.) 125/95 ...

Combustible Liquid - Correct answer-A liquid with a flash point ABOVE 100F 12.5 - Correct answer-If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit? 1000 - Correct answer-If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage? *Power (P) = current (I) x voltage (V) Watts = amps x volts 1987 - Correct answer-The y...

What must you do if you notice code violations in a homeowners house? - Answer Notify them and recommend ways to address them What must be done when performing an annual tune-up on a heating system? - Answer A combustion efficiency test and a copy must be posted on site Whenever a furnace, direct fired hot water heater, or boiler is installed the total installation must be brought into compliance with what requirements BEFORE appliance can be fired? - Answer NFPA 31 When an eme...

What is the purpose of the Texas Insurance Code Chapter 6002 - Fire Detection and Alarm Device Installation, often referred to as the 'Fire Alarm Rules'? Answer - A. To regulate the planning, certifying, leasing, selling, servicing, installing, monitoring and maintenance of fire detection and fire alarm devices and systems. B. To prohibit the use of fire detection and alarm devices not labeled or listed. What does NFPA stand for and who are they? Answer - National Fire Protection Associat...

Electrical vehicles are equipped with what type of motor a. internal combustion permanent magnet c. induction d.B and C - d.B and C Regenerative breaking is best described by which of the following a. an energy recovery system b turnes electrical energy to kinetic energy c. is obsolete technology that existed on ev models in the 90's d. is not reliable as a breaking method - a. an energy recovery system "lion" describes which of the following a. chemical compound symbol for one typ...

_________ are necessary for complete combustion correct answer: time, temperature, mixture, and atomization if the steam pressure gauge indicates 200 PSIG, the absolute pressure is______ correct answer: 214.7 a boiler is operating at 400 PSI, and the safety valve opens at 410 PSI and closes at 398 PSI. The blowdown is______psi correct answer: 12 an oil cooler is commonly used with a(n) ________ when operating in conjunction with a turbo-generator correct answer: steam turbine a b...

S-290 Final Exam Questions and Answers Already Passed T/F Topography can directly and indirectly affect fuels and their availability for combustion. True Of the three primary environmental factors that influence fire behavior, which is the least variable? Topography The least critical form of heat transfer that influences rate of spread in a running wild land fire is: Conduction The point to which a combustible material must be heated to produce self-sustaining combustion is known as the: Ig...

S-190 Questions and Answers Already Passed The precise location where a competent ignition source came into contact with the material first ignited and sustained combustion occurred. Point of origin. The side of the fire having the fastest rate of spread Head of a fire The part of a fire's perimeter that is roughly parallel to the main direction of spread Flank of a fire That portion of a fire spreading directly into the wind or down slope. That portion of a fire edge opposite the head Slo...

Michigan Esthetician State Board Theory Questions and Answers Already Passed What item should be used on tools and implements that have not come in contact with blood or body fluids? Broad-Spectrum Disinfectants What machine is used to sterilize surgical instruments with high-pressure and high-temperature vapors? Chemiclave Instruments can be pre-cleaned using: High-frequency energy waves What is the Occupational Safety and Health Administration (OSHA) responsible for? Enforces safety and he...