One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 512
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Multiple-choice question: Reasons for insufficient air volume and reduced air pressure in Rohter fans ( ) A. Increased wear gap in the blades B. Loose transmission belt, resulting in failure to reach the rated speed C. Air leakage at the seals or casing D. Air leakage at the pipe flanges. Answer: ABCD
A. Increased wear gap in the blades B. The drive belt is loose, preventing the achievement of the rated speed C. Air leakage from the seal or casing D. Air leakage at the pipe valve flanges
Reasons for insufficient air volume and reduced air pressure in rotary vane blowers (A B C D): A. Increased wear on the blades, resulting in larger gaps; B. Loose transmission belts, preventing the blower from reaching its rated speed; C. Leaks in the seals or casing; D. Leaks at the pipe valves