 e |
Which of the following is true about water into gypsum products for production of metal restoration? A. Increase water, Increase setting time, decrease expansion, tighter restoration, stronger model. B. Increase water, decrease setting time, decrease expansion, tighter restoration, brittle model. C. Increase water, Increase setting time, decrease expansion, looser restoration, brittle model. D. Increase water, Increase setting time, decrease expansion, tighter restoration, stronger model. E. Increase water, Increase setting time, decrease expansion, tighter restoration, brittle model. F. None of the above. |
| c |
Which is the following is false? A. Osmotic pressure is the pressure created by diffusion of a liquid through a membrane. B. The process of syneresis includes exude or squeeze out liquid from gel. C. Solid have the most resistance to free movement out of all five states of aggregation. D. Suspended colloidal particles have properties that allows the scattering of a beam of light. E. All above is true.<br> Solid have the most resistance to free movement out of all three states of aggregation. |
| b |
At 40C, water is at____. a. gas state b. liquid state c. gas state d. plasma state e. all the above |
| d |
Which is the following statement is false? a. Freezing point is described as the temperature at which free molecular motion ceases. b. Liquids possess a definite volume and take on the shape of their container c. Changing oxygen O2 to ozone O3 is an example of change of allotropic forms. d. Isomeric forms is altering of physical arrangements of atoms in a molecule by changing physical conditions. e. All the above is true f. All the above is false<br> allotropic forms is altering of physical arrangements of atoms in a molecule by changing physical conditions. |
| e |
In the Hazard Index of Hazardous Materials Identification System, the numbers are indicated as______. a. 1-3 b. 1-4 c. 1-5 d. 0-3 e. 0-4 f. 0-5 |
| e |
In the personal protection index of Hazardous Materials Identification System, the alphabets are labeled as______. a. A-F and X b. A-G and X c. A-H and X d. A-I and X e. A-K and X f. A-G and X |
| g |
Which of the following statement(s) below is true? I. solute passes to the more concentrated solution through the membrane till equilibrium exist. II. Solute is the component present in a solution in greater proportion. III. Solvent is the component present in a solution in smaller proportion.A. I only B. I and II only C. I, II, and III D. I and III only E. III only F. II only G. none of the above is true.<br> I. Solvent passes to the more concentrated solution through the membrane till equilibrium exist. |
| c |
Which of the following statement(s) below is true? I. Plasticity is the ability to be deformed by stress. II. Electric current runs from negative anode to the positive cathode. III. Viscosity is the resistance to flow A. I only |
| e |
Which of the following statement(s) below is true? I. In water, gel undergoes the process of syneresis. II. In dry air, gel undergoes the process of imbibition. III. Viscosity is the resistance to flow. A. I only <br> In water, gel undergoes the process of imbibition. In dry air, gel undergoes the process of syneresis. |
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Aw, this was a very nice post. Taking the time and actual effort
to produce a great article… but what can I say… I procrastinate a lot
and don’t manage to get nearly anything done.