| Question - 1 of 14 | a | b | c | d |
| How should all walkways be constructed for safety ? | Guard rails | Guard rails and non - skid material on the walkways | Guard rails in the vicinity of deep water | There is no need for safety |
| Question - 2 of 14 | a | b | c | d |
| There are times when it will be necessary to work close to deep water where it is not practical to provide guard rails. In such cases ; | A life - line should be worn | The work should be performed by a qualified swimmer | A life preserver should be worn | None of them |
| Question - 3 of 14 | a | b | c | d |
| Because of the extreme angle of many of the metal stairways and ladders used at most treatment plants, there is the ever present danger of injuries from slipping or falling. When using this type of stairway and ladder you should ; | Face the stairs while going either up or down | Face forward when going down and face the stairs when going up | Keeo one hand free to hold onto the hand rail | None of them |
| Question - 4 of 14 | a | b | c | d |
| When any work is performed on machinery powered by electric motors ? | There should be at least two men working together in the event of an electrical shock | The circuit should be deenergized and a tag placed on the switch so it will not be energized without the knowledge and permission of the person doing the work | Shut off the electricity of the whole plant | None of them |
| Question - 5 of 14 | a | b | c | d |
| Fires are another ever present danger. The first step to take when a fire starts is to ; | Remove as much equipment as possible from the fire area | Use a hand fire extinguisher | Call the fire department | None of them |
| Question - 6 of 14 | a | b | c | d |
| The improper storage of oily rags has been the cause of many fires. This type of material should always be stored in ; | Any closed - cover container | A closed - cover metal container | A well ventilated area | A wooden bin |
| Question - 7 of 14 | a | b | c | d |
| When attempting to extinguish an electrical fire, only ; | Soda - acid fire extinguisher should be used | CO2 fire extinguisher should be used | Water fire extinguisher should be used | None of them |
| Question - 8 of 14 | a | b | c | d |
| Chemicals are another potential hazard. Chlorine solutions can cause irritation and blistering of the skin. When anyone has been in contact with chlorine or other chemicals they should remove any contaminated clothing and wash the exposed parts of the body immediately. To facilitate this, there should be a ; | Tank containing an alkaline solution in the near vicinity | A supply of potable water in the work areas where chemicals are used | Tank containing a slightly acid solution in the near vicinity | None of them |
| Question - 9 of 14 | a | b | c | d |
| Snow on stairways and walkways can be extremely hazardous. These conditions can best be corrected by ; | Melting all snow and ice from such areas by hosing them off | Removing the snow by shoveling and spreading salt to prevent ice from forming | Cleaning by water | None of them |
| Question - 10 of 14 | a | b | c | d |
| Accumulations of trash around the plant are undesirable, because ; | They indicate poor plant maintenance | They are unsightly and may produce odors | They represent a potential cause of injuries and fires | None of them |
| Question - 11 of 14 | a | b | c | d |
| All rotating assemblies on mechanical equipment should be provided with protective guards. These guards often get in the way of routine maintenance and inspection. If such a guard must be removed frequently ; | The guard might be properly modified but otherwise it is essential to replace it anytime it is removed to service the equipment | Discard it and replace it with an appropriate warning sign | Discard it and wear appropriate protective gear when working on or around the machine | None of them |
| Question - 12 of 14 | a | b | c | d |
| When performing routine tasks such as taking samples from the aeration tank there are precautions that should be taken. The person taking the sample should ; | Wear rubber boots | Wear a face mask | Wear rubber gloves | Have a assistant along in case he falls into the tank |
| Question - 13 of 14 | a | b | c | d |
| Wearing rubber gloves will ; | Prevent disease or infection from entering through cuts or scratches on the hands | Reduce the possibility of dropping the sample | Reduce the possibility of falling the person | None of them |
| Question - 14 of 14 | a | b | c | d |
| Chipping paint or rust has been the cause of many injuries. When performing this type of work ; | Safety shoes should be worn | A safety hat should be worn | Safety glasses should be worn | Safety gloves should be worn |
