ARFF - Driver Operator - Challenge Review Exam Questions and Complete Solutions Graded A+

ARFF - Driver Operator - Challenge
Review Exam Questions and Complete
Solutions Graded A+
Dry chemicals can only be used on - Correct Ans: A. Class A fires



B. Class A, B, C fires - -Answer



C. Class C and D fires



D. Class D fires



Identify TWO TRUE statements about auxiliary agents - Correct Ans: A. They should never be used
directly with primary agents



B. They must be compatible with primary agents



C. They can be used interchangeably



D. They must be used on the specific class of fire for which they are rated



E. They cannot be used on combustible liquids and vapors



Raw Liquid foam that is stored in containers until it is mixed with water and air is called: - Correct Ans: A.
Foam concentrate - -Answer



B. Synthetic foam



C. Foam crystals

, D. Condensed Foam



Class A foams and class B synthetic based foam concentrations have a shelf life of: - Correct Ans: A. 1 to
5 years



B. 6 to 10 years



C. 11 to 20 years



D 20 to 25 years - -Answer



Identify TWO laws that apply to water and its ability to absorb heat and turn a liquid into a vapor -
Correct Ans: A. First Law of Thermodynamics



B. Law of Specific Heat



C. Law of Entropy



D. Law of Latent Heat of Vaporization



E. Newton's Law of Static and Dynamic Forces



Sparks from friction or electrical components can increase the ________ of a fuel spill. - Correct Ans: A.
Length



B. Duration



C. Probability of ignition - -Answer