What should drivers NOT do when approaching an unguarded railroad crossing?
A) Make sure any devices that produce noise are silenced
B) Open the windows and listen for the train's horn
C) Bring the vehicle to a complete stop
D) Sound the siren and blast the air horn
D
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Procedures explain
A) Steps that have to occur to comply with the policy B) Actions that employees have to take every day C) How to evaluate the policy D) How often the policy will be reviewed and revised
Which of the following is false about changes in aerosol suspensions over time?
a. Liquid aerosol particles can shrink (evap-oration) or grow (water absorption). b. The rate of particle growth is directly proportional to particle size. c. Small water-based particles tend to shrink when exposed to dry gas. d. Aerosols of water-soluble salts tend to grow in a humidified environment.
Identify the following as elements or compounds.Substance Identity1. carbon ________________2. vitamin C ________________3. iron ________________4. sodium ________________
What will be an ideal response?
A drug vehicle that consists of water, alcohol, and sugar is known as a(n) ____________________
Fill in the blank(s) with correct word