A. Dust B. Fumes C. Gas D. Mist and fog Figure 3-A.-Types of Air Contaminants. IDENTIFYING THE TYPES OF AIR CONTAMINANTS IS CRITICAL IN SELECTING THE PROPER RESPIRATOR.  TO  ANSWER  QUESTIONS  3–41 THROUGH 3–45, SELECT THE TYPE OF AIR CONTAMINANT IN FIGURE 3–A THAT MATCHES THE DESCRIPTION USED AS THE QUESTION. RESPONSES MAY BE USED ONCE. MORE THAN ONCE, OR NOT AT ALL. 3–41. Particles formed by the condensation of volatile solids that  are  produced  by  the  welding, brazing,  or  cutting  of  metals. 1.  A 2.  B 3.  C 4.  D 3–42. A material that under normal temperature and pressure tends to occupy  an  entire  space. 1.  A 2.  B 3.  C 4.  D 3–43. Particles created by breaking up larger particles during the crushing, grinding, sanding, or chipping  of  materials. 1.  A 2.  B 3.  C 4.  D 3-44. Finely divided liquid droplets suspended in air that are produced during  spray  painting. 1.  A 2.  B 3.  C 4.  D 3–45. A material that is usually invisible  and  odorless. 1.  A 2.  B 3.  C 4.  D 3–46. Personal protective clothing and equipment (PPE) can reduce or eliminate  the  hazard  itself. 1. True 2. False 3–47. You are assigned to do hot work over the side. Which of the following PPE are you required to wear? 1. Safety shoes, heat–insulated gloves, safety harness, and metal hard hat 2. Safety shoes, leather gloves, and safety harness 3. Safety  shoes,  heat–insulated gloves, and a safety harness with wire rope 4. Safety shoes, heat-insulated gloves, and a safety harness with nylon lanyards 3-48. Afloat, in which of the following spaces can you obtain an extension cord? 1. Electronics Technician’s shop 2. Electrical tool issue room 3. Boatswain’s   locker 4. supply 3-49. The electrical tools custodian can only issue tools to which of the following personnel? 1. Members of electrical and electronics   ratings 2. Engineering   personnel 3. Personnel who have received electrical safety training within the year 4. All of the above 1 8