CFPS

CFPS practice questions, page 2 of 4, with answer review and explanations.

Question 6

Electrical equipment used in Class I, Division I hazardous locations is often referred to as:

  1. intrinsically safe
  2. explosion resistant.
  3. propagation resistant.
  4. explosion proof.

Question 7

The entrainment of air from the surrounding atmosphere in a rising fire plume has the effect of:

  1. decreasing the total mass/volume of the plume, cooling the plume, concentrating the fire products.
  2. increasing the total mass/volume of the plume, heating the plume, reducing the concentration of fire products.
  3. decreasing the total mass/volume of the plume, heating the plume diluting the concentration of fire products.
  4. increasing the total mass/volume of the plume, cooling the plume, diluting the concentration of fire products.

Question 8

During which stage of a fire would the heat release likely to be controlled by the fuel package size and geometry (i.e. the surface area likely to burn)?

  1. Incipient Stage
  2. Growth Stage
  3. Steady-state Stage
  4. Decay Stage

Question 9

Which of the following materials is considered by NFPA to be a Group A plastic?

  1. Butyl rubber
  2. Natural rubber (not expanded)
  3. Silicone rubber
  4. Cloroprene rubber

Question 10

Which of the following refrigerants has the highest flammability, according to its Safety Group classification?

  1. Octaflouropropane
  2. Difluoromethane
  3. Methyl Chloride
  4. Methane