1. One micrometer (or micron, or m) measures:
2. Common filter locations are:
- suction line, cylinder line and return line.
- suction line, pressure line and return line.
- pressure line, return line and pilot line.
3. A bi-directional filter uses:
- four check valves to direct flow through the element.
- filter elements that can take flow in either direction.
- two filters in one housing.
4. An airline lubricator introduces:
- a small amount of anti-freeze to the air line.
- a small amount of oil to the air line.
- a small amount of sealant to the air line.
5. Refrigeration type air dryers remove water from an air line by:
- a chemical absorbent action.
- a chemical adsorbent action.
- reducing the temperature of the air.
6. Off line filtration loops can be used to:
- filter the fluid.
- cool the fluid.
- heat the fluid.
7. Servo valve circuits require a pressure-line filter without a bypass.
8. ISO cleanliness level numbers:
- start with higher numbers and go to lower numbers (16/14/11.)
- start with lower numbers and go to higher numbers (11/14/16.)
- do not have a particular number pattern.
9. A coalescing filter can remove particles down to:
10. A filter’s Beta ratio rating indicates:
- what size and how many particles the filterwill remove.
- what size and what type particles the filterwill remove.
- the size and shape of the particles the filter will remove.