What causes combustion - Study guides, Class notes & Summaries

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E6 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Tuesday 23 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instruction...

ASVAB MEPS Exam 223 Questions with Verified Answers A radar is designed to report the track of an aircraft every second. If this radar reports 30 tracks in one minute, what percentage of the time did the radar track the aircraft? - CORRECT ANSWER 50% Jerry walked a dog from 6:40 a.m. to 7:30 a.m. one day. If he was paid at the rate of $6 per hour, how much did he earn that day? - CORRECT ANSWER $5.00 A woman is looking for a bigger square office. She finds an office twice the area of he...

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 Section B TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions...

What is the first thing a tech should do when arriving at a no combustion call? - Answer- Ask how many times the customer reset the unit. What is the best long term solution for preventing a clogged nozzle? - Answer- -Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - Answer- False When in the presence of a flame, a cad cell normally reads.. - Answe...

Combustible Liquid - A liquid with a flash point ABOVE 100F 12.5 - 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 - 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 - The year of the first edition of NFPA 1033 1.5 times - ...

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Version: 1.0 Final *JUN238464C2H01* IB/M/Jun23/E7 8464/C/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at t...

High pressure boiler exam NYC License 2024 Questions and Answers Latent Heat of Vaporization - CORRECT ANSWER-970.3 Btu's Meaning of BTU - CORRECT ANSWER-British Thermal Unit At what PSI can the vent valve be closed when refilling a boiler - CORRECT ANSWER25 PSI What kind of Air controls combustion efficiency? - CORRECT ANSWER-Secondary Air Boiler main steam stop valves should be ____ valves. - CORRECT ANSWER-OSandY gate valves Forced draft and Induced draft are what kinds of draft - ...

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 is a boiler Correct Answer a closed metal container (pressure vessel) which water is heated to produce steam or heated water What is steam Correct Answer the vapor that forms when water is heated to its boiling point When did the greatest impact of the use of steam power occur Correct Answer during the industrial revolution 18th and early 19th century Who invented the steam engine and when Correct Answer James Watt of Scotland in 1736 How is steam produced Correct Answer water i...

IFSTA 7th Edition - Chapter 11: Tactical ventilationTactical ventilation is performed during fire attack to: (493) - correct answer Help control the fire Why is ventilation used during overhaul and loss control? (493) - correct answer Evacuate smoke from structures after a fire has been extinguished When performing tactical ventilation, what action has the most impact on successful ventilation? (494) - correct answer Controlling oxygen availability Which action may improve visibility in...