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Question
69. The device pictured is a brake stop-time measurement device.a. true
b. false
Answer
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68. Explain the principle of "closed circuit" operation of SCBA units.
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FLASH POINT: -40OF
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LEL: 1.5%
UEL: 7.8%
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UEL: 7.8%
VAPOR DENSITY: 2.48
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75 If the temperature of a liquid is too low for a fire to be sustained on the top of the liquid, then you know thata. the temperature is below the flash point but above the firepointb. the temperature is below the firepoint but above the flash pointc. the temperature is below both the flash point and the firepointd. the temperature is below the firepointe. b and d abovef. none of the above