1 Exam Questions And Answers 2024

Ch. 7 What converts the fatty acids in cooking oils or fats to soap or foam? A. High Expansion Foam B. Dry Powder C. Halocarbon D. Saponification {Ans: D. Saponification}Ch. 6 Which of the following materials are fused by heat and will not melt as the plastic burns: A. Tempered Glass B. Gypsum Board C. Thermoplastic Materials D. Thermoset Materials {Ans: D. Thermoset Materials}Ch. 9 Kernmantle ropes consist of two distinct parts: The ____ is the center of the rope and the _____ is a braided covering that protects the core from dirt and abrasion. A. Fiber, Sheath B. Mantle, Kern C. Core, Mantle D. Kern, Mantle {Ans: D. Kern, Mantle}Ch. 6 A mixture of _______cement and aggregates such as sand and gravel is how concrete is made. A. Oakland B. Poured C. Portland D. Poland {Ans: C. Portland}Ch. 8 Used to rotate valve stem on hydrants: A. Open-Ended Wrench B. Hydrant Wrench C. Pipe Wrench D. Combination Wrench {Ans: B. Hydrant Wrench}Ch. 12 Approximately _____ of particulates from the by-products of combustion are invisible to the naked eye. A. 97% B. 85% C. 70% D. 50% {Ans: A. 97%}