8.11 – Answer questions daily for rewards (Pharmaceutical Engineering Technology version): Gain knowledge easily
Thread Content
Those who answer correctly receive 10 wealth points, while those who answer incorrectly receive 3 wealth points (rewards are available for answers given within 24 hours). Multiple-choice question: 1. To reduce solvent evaporation losses, hot filtration should not be used for low-boiling-point solvents_______. A. Vacuum filtration, with no condensing cooler at the outlet; B. Pressure filtration; C. Vacuum filtration, with a condensing cooler at the outlet. 2. Based on the hazard level of the substances used or generated during the production process, the fire hazards associated with production can be classified into five categories: A, B, C, D, and E. The most hazardous category is _______. A. Class A B. Class C C. Class E D. Class A or Class E
A---------A
1. To reduce solvent volatilization losses, thermal filtration of low-boiling-point solvents should not be employed using ____A___. A. Vacuum filtration, without a condensing cooler at the outlet; B. Filtration under pressure; C. Vacuum filtration, with a condensing cooler at the outlet. 2. Based on the hazard level of the substances used or generated during the production process, the fire hazards associated with production can be classified into five categories: A, B, C, D, and E. The most hazardous category is ____A___. A. Class A B. Class C C. Class E D. Class A or Class E