Installations of a Clean Agent fire extinguishing systems may be accepted by the Fire Commissioner pursuant to §27-404 of the Administrative Code where the nature of the fire hazard is such that
A. halon is not effective as an extinguishing agent
B. steam is not effective as an extinguishing agent
C. water is not effective as an extinguishing agent
D. carbon dioxide is not effective as an extinguishing agent
Answer: C. water is not effective as an extinguishing agent
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Which of the listed statements represents a valid restriction during personnel-hoisting operations?
a. A platform shall not be positioned less than 20 feet from an energized 480 kV transmission power line. b. Platform raising and lowering speeds must be less than 75 feet per minute. c. The operator may not use the main boom hoist unless the personnel lift is being conducted on a boom extension longer than 20 feet. d. Lift supervision must terminate the lift if wind speeds exceed 20 mph at the level of the platform.
Se considera que el peso de todos los equipos de manio- bras sin incluir la carga, corresponde a _____.
a. las deducciones por encima del gancho b. el contrapeso c. la capacidad neta d. las deducciones por debajo del gancho
Sheep and goats were an ideal domestic animal early in agriculture because:
a. They helped clear the land prior to planting b. They are small and easy to manage. c. They browsed on vegetation that provided little or no nutrients to people d. all answers
What is a hand snake often called?
What will be an ideal response?