What causes combustion - Study guides, Class notes & Summaries

Is NFPA 921 a guide or a standard? (Ans- It is the Guide for Fire and Explosion Investigations What are the six steps of the scientific method? (Ans- Recognize the need Define the problem Collect the data Analyze the data Develop a hypothesis Test the hypothesis What step of the scientific method is inductive reasoning? (Ans- Analyze the data What step of the scientific method is deductive reasoning? (Ans- Test the hypothesis What are the four parts of the fire tetrahe...

FDNY S-92 Questions and Answers Rated A+ The following are types of what? LPG, CNG, piped natural gas or solid fuel (coke). Portable fueled salamanders/space heaters National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) for carbon monoxide 35 parts per million (ppm) over an 8 hour period What is the third leading cause of fires in buildings under construction ? temporary heating What is direct heat flow through matter? CONDUCTION What is the transport...

IAAI CFI Study Questions 2021with All Correct Answers Combustible Liquid - ANSWER A liquid with a flash point ABOVE 100F 12.5 - 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 - 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...

Oregon State Board Exam - Esthetics (2023)Solved And Already Graded A+ Oregon State Board Exam - Esthetics (2023)Solved And Already Graded A+ The muscles that respond automatically to control various body functions are: anterior striated voluntary non-striated - Answer non-striated Bacteria are single cells that are circular, spiral or: rod- shaped square-shaped angular-shaped triangular- shaped - Answer rod- shaped Disease-producing bacteria are called: virus microbes ...

Lead Inspector/Risk Assessor | ALL QUESTIONS AND ANSWERS 2023 GRADED A+!! Permanent abatement options include... - Paint removal, component removal, enclosure, encapsulation Lead Inspector - A certified individual who conducts a surface-by-surface investigation to determine the presence of lead-based paint. Lead-based paint - 1 mg/cm2 5000micrograms/g = 5000ppm .5% by weight What is lead based paint? - any surface coating containing at least 1 miligram per square centimeter of lead...

Strand - Aviation Mechanic School Questions and Answers Already Passed What is the primary purpose of a magneto in an aircraft engine? The magneto generates electricity to ignite the fuel-air mixture in the engine, independent of the aircraft’s battery. Why is it essential to torque bolts in an aircraft engine to the manufacturer's specifications? Proper torque ensures that the bolts are tight enough to hold components securely but not so tight that they cause damage. How does...

CHEMISTRY STRAIGHTERLINE EXAM An endothermic reaction causes the surroundings to: A. warm up B. become acidic C. condense D. decrease in temperature E. release CO2 - Correct Answer-D An exothermic reaction causes the surroundings to: A. warm up B. become acidic C. expand D. decrease its temperature E. release CO2 - Correct Answer-A Copper metal has a specific heat of 0.385 J/g•oC and has a melting point of 1083oC. calculate the amount of heat required to raise the temperat...

Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...

NAPE Third Grade Engineering Review Test Questions with Verified Solutions How Can you lose your license? Drinking on the job, sleeping, negligence, unsafe work, failing to renew license, signing a falsified licensing application. What must you do if you change jobs? You must notify City Hall if you change jobs, change address or retire Why should you do rounds? To find and correct problems, prevent breakdowns, keeping permanent records will make it easier to forecast most breakdown...

Where are the return openings located regarding air distribution systems? - Answer-Return air openings are located on inner walls. The minimum temperature of the water used in a hydrostatic test of a boiler cannot be less than what temperature? - Answer-20 degrees Celsius Which of the following are causes of pressure explosions? 1. effects of corrosion 2. weak pilot flame 3. stressed material due to heating too quickly 4. insufficient purge 5. scale and sludge build-up - Answer-1, 3, 5 ...