Which lubrication system is used in 2 stroke engine? petroil mixture What is the primary cause of pollution from a two stroke engine? Two-stroke engines produce a lot of pollution because the fuel-air mixture in them gets contaminated with the engine’s lubricating oils. This allows fuel to enter the combustion chamber when the exhaust port […]
How is activation energy related to the energy of reaction?
How is activation energy related to the energy of reaction? Activation energy and reaction rate The activation energy of a chemical reaction is closely related to its rate. Specifically, the higher the activation energy, the slower the chemical reaction will be. The higher the barrier is, the fewer molecules that will have enough energy to […]
Do you put coolant in the surge tank?
Which technology is used to place the components directly on the printed circuit boards?
Which technology is used to place the components directly on the printed circuit boards? There are two methods of placing components on a printed circuit board (PCB). The first one is Through-Hole Mounting (THM) and the other one is specified as Surface Mount Technology (SMT). At EPR we use SMT as well as THM. Both […]
How do you calculate the average molecular weight of a polymer?
How do you calculate the average molecular weight of a polymer? The distribution of molecular weights in a polymer sample is often described by the ratio of the weight average molecular weight to the number average molecular weight. In this case the ratio is 000 = 1.063. This ratio is the Polydispersity Index (or PDI)…. […]
How do you calculate contact time disinfectant?
How do you calculate contact time disinfectant? Divide 1,500 gallons by the peak hourly flow of 15 gallons per minute to get 100 minutes of time available. Step 2: Your contact time is 100 minutes x 1.5 mg/l. This is equal to 150 min. mg/l of available contact time. How long does chlorine residual last? […]
What are the Nate specialty test areas?
What are the Nate specialty test areas? There are currently 21 NATE installation, service, and senior tests. Specialties include: Air Conditioning, Air Distribution, Heat Pumps, Gas Furnaces, Oil Furnaces, Hydronics Gas, Hydronics Oil, Light Commercial Refrigeration, Commercial Refrigeration, and Senior HVAC Efficiency Analyst. How many Nate certifications are there? Technicians choosing to earn senior level […]
What is a shot in injection molding?
What is a shot in injection molding? Two-Shot Molding Process The first is similar to traditional injection molding: A shot of resin is injected into a mold and cooled to form a solid part. What is the purpose of injection Moulding? Injection molding is a method to obtain molded products by injecting plastic materials molten […]
Which animals can be infected with COVID-19?
Which animals can be infected with COVID-19? We know that cats, dogs, and a few other types of animals can be infected with SARS-CoV-2, the virus that causes COVID-19, but we don’t yet know all of the animals that can get infected. There have been reports of animals being infected with the virus worldwide. Are […]
Which of the following elements of the CIA triad refers to maintaining and assuring the accuracy of data over its life cycle?
Which of the following elements of the CIA triad refers to maintaining and assuring the accuracy of data over its life cycle? Which part of the C-I-A triad refers to maintaining and assuring the accuracy of data over its life-cycle? Integrity 4. What are the 3 components of the CIA triad? The CIA triad refers […]