Figure 1. Blinds are on the windows and the monitor is placed at an angle (perpendicular). 1  Place rows of lights parallel to your line of sight (Figure 1). 2  Provide light diffusers so that desk tasks (writing, reading papers) can be performed while limiting direct brightness on the computer screen.igure 4. Monitor with a glare screen. 1  Use glare filters that attach directly to the surface of the monitor to reduce glare (Figure 4). 2  Use barriers or light diffusers on fixtures to reduce glare from overhead lighting.
They all have a choke on the carburetor. What Choke Does. The choke is a valve on the engineâs air intake that reduces the volume of air flowing into the engine on a cold start. Closing the choke valve enriches the fuel/air mixture going into the carburetorâs throat by increasing the proportion of fuel to air.
Image Gallery: Engines The amount of oxygen the engine can pull in depends on factors such as the altitude and the temperature of the air and engine. See more pictures of engines. Rob Bouwman/ Getty Images. Every new car, and most cars produced after 1980, have an oxygen sensor. The sensor is part of the emissions control system and feeds data to theÂ­ engine management computer. The goal of the sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. Â­A gasoline engine burns gasoline in the presence of oxygen (see How Car Engines Work for complete details).