Exhaust gases - Study guides, Class notes & Summaries

Heavy Duty Truck Systems - Chapter 4 with Complete Solutions What component in the truck’s engine helps reduce friction between moving parts? The oil lubrication system helps reduce friction between moving parts in the engine. How does the truck’s cooling system prevent the engine from overheating? The cooling system uses coolant to absorb and dissipate excess heat from the engine. What is the function of the truck’s air filter in the air intake system? The air filter cle...

3B2 Power Engineer Exam Practice The disadvantages of a gas turbine are: 1. High cost of manufacture 2. High levels of noise pollution are produced 3. Low thermal efficiency 4. Requires many auxiliaries to be efficient A. 1, 2, 3 B. 1, 3, 4 C. 2, 3, 4 D. 1, 2, 4 E. 1, 2, 3, 4 - E The most common process method of refrigeration is: Select one: A. Absorption B. Lithium bromide C. Water vapor D. Vapor compression or mechanical E. Ammonia compression system - D To facilitat...

Auto Mechanics Exam with Complete Solutions fuel must be in this form for good combustion Correct answer air/fuel during the power stroke Correct answer air/fuel is ignited by the spark plug causing an explosion diving piston downwards. as the exhaust stroke begins Correct answer piston moves upwards pushing out exhaust gases (compressed particles) during the exhaust stroke the piston moves Correct answer upwards the correct order for the four stroke cycle Correct answer intake, compres...

Where should piston ring gaps be installed relative to each other , and why ? Compression ring gaps should be staggered so that they do not align . This prevents blow - by . On engines equipped with hydraulic valve lifters , what should the running valve clearance be ? Zero Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:03 / 0:15 Full screen What indications are given in the event of a leaking or open primer while the engine i...

TRUCK FOUNDATIONS PART 2 WITH VERIFIED SOLUTIONS What is the purpose of a truck’s frame? The frame supports the truck's weight, provides structural integrity, and serves as the foundation for mounting other components. How do truck leaf springs contribute to the vehicle’s suspension system? Leaf springs absorb road shocks and distribute the vehicle’s weight evenly, helping to maintain stability and comfort. What is the function of a truck’s axle? The axle supports ...

ASE B6 Test - Damage Analysis & Estimating UPDATED Exam Questions and CORRECT Answers What is the difference between a unitized frame and a uni-body? - Correct Answer- There is no difference. In a uni-body or unitized vehicle, the frame and body are incorporated into a single welded structure. Should exhaust damaged systems be welded and repaired, or replaced all together? - Correct Answer- Replaced. Exhaust gases contain poisonous carbon monoxide and leaks could create dangerous co...

minimum spacing between hull vent openings and fuel fill or vent fititngs should be - Answer-15 inches thermal efficiency of a diesel engine is such that typical heat converted to useful power is approximately what percent of total heat - Answer-36% What is the primary difference between the gasoline-fueled and Jen four stroke cycle and the diesel four-stroke cycle - Answer-The intake stroke only brings air into the cylinder Temperature controlled engine room exhaust blowers in a diesel po...

Where does the warm air come from that is used to heat the cabin of most small single-engine reciprocating-engine-powered aircraft? CORRECT ANSWER -From a shroud around the engine muffler -Most single-engine light aircraft use exhaust shroud heating systems to heat the cabin. Ambient air is directed into a metal shroud, or jacket, that encases part of the engine's exhaust system. The air is warmed by the exhaust and directed through a firewall heater valve into the cabin. This simple solution ...

Firefighter 1 Test Questions and Answers with Certified Solutions During the ____ stage of development, the three elements of the fire triangle come together in the combustion process. Incipient Firefighters working in the exhaust portion of the flow path will: feel the increase in temperature as the velocity and/or turbulence increases. What provides the best indicators of structural integrity? Information gathered at the scene In a compartment fire, the interface between the hot gas layers...

Mechanical Hvac practice test questions and answers A separate and distinct ventilation or exhaust system shall be provided for _____? (A)noxious gases (B) corrosive fumes (C)flammable vapors (D) incompatible materials. - correct answer-D. 505.1.2 In systems conveying flammable vapors, gases, or mists, the concentration shall not exceed 25 percent of the lower flammability limit (LFL). Exception: Higher concentrations shall be permitted if the exhaust system is designed and protected in accor...