MECHANISMS AND ACCESSORIES FOR REPAIR OF CARS

Question 8. What apparatus and equipment are used at car service enterprises to dry and clean compressed air?
1. Compressor, pre-cooler of compressed air, water separator, receiver, device for draining condensate, pre-filter, refrigeration dryer, fine filters, condensate separator.
2. Compressor, receiver, condensate separator, drain valve, filter system, dryer.
3. Compressor, receiver, water separator, condensate separator, filter set, dryer, condensate drain device.

Question 9. What elements does a multistage compressed air filtration system consist of?
1. Ceramic pre-filter, absorption filter itself, filter-absorber, air dryer and separator of water and oil vapor condensate.
2. From a filter system for moisture, solids and various oxides.
3. Coarse and fine filters, air dryer and condensate separator.

Question 10. What is the purpose of a water and oil vapor condensate separator in a compressor station for preparing compressed air?
1. For separating condensate into water and mud fractions.
2. For separation of oil-water emulsion into industrial water and waste oil.
3. For disposal of air purification products.

Question 11. What can not be done when servicing the pneumatic line of the workshop in accordance with the requirements of environmental protection?
1. Drain the process water down the drain.
2. Touch the condensate with your hands.
3. Dispose of the oil-water emulsion without separating it into fractions.

Question 12. How is the required pressure in the pneumatic line of the workshop maintained?
1.Using a compressor, receiver and pressure reducing valve.
2. By circulating compressed air in the pneumatic line.
3. Using a special gearbox equipped with a pressure gauge.

Question 13. What device regulates the pressure required for each specific pneumatic tool?
1. A special dispenser with a pressure gauge.
2. A special gearbox equipped with a pressure gauge.
3. A pressure reducing valve on the receiver.

Question 14. Where should the moisture separators be located on the pneumatic line?
1. At points of the line with maximum pressure and minimum temperature.
2. At points of the line with minimum pressure and maximum temperature.
3. On any section of the pneumatic line.

Question 15. At what pressure should the air in the receiver be?
1. At the lowest possible pressure.
2. At any pressure.
3. Under the maximum possible pressure for the installed compressor.
Question 16. What must be done if the receiver heats up to a temperature above 30 ... 40 ° C?
1. Install an additional receiver connected in series and located outdoors, or an air cooler.
2. Install a forced receiver cooling system.
3. Get a more powerful compressor.

Question 17. Should a filter be installed before or after the pressure reducer to reduce the pressure?
1. After the gearbox.
2. To the gearbox.
3. It does not matter where the filter is installed.

Question 18. What affects the decrease in the energy saturation of compressed air during its circulation in the pneumatic line?
1. The diameter of pipelines, their material, the presence of poor shut-off devices and irrational laying of the line.
2. Too large pipe diameter.
3. Presence of bends in the track at small angles.

Question 19. From what materials is it desirable to make the elements of the pneumatic line of the STOA?
1. Galvanized steel pipes.
2. Aluminum profiles and polymers.
3. Aluminum and copper profiles.

Question 20. How is it necessary to interconnect the elements of the pneumatic line?
1. Using fittings made of threaded fittings.
2.With modern connectors equipped with unloading valves.
3. Using threaded and bayonet fittings.

Question 21. What determines the choice of a compressor in a car service enterprise?