A hot air balloon has a lifting force of 1.23 kN. If a single rope is used to hold it in a breeze and it makes an angle of 15 degrees with the vertical, what is the tension in the rope?
What will be an ideal response?
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The arc flash protection boundary is the area surrounding equipment where a person will __________________ in the event of an arc flash.
A. receive first-degree burns B. receive second-degree burns C. receive third-degree burns
Why are capacitors rated at higher voltages than the unit line voltage?
A) Charging and discharging in series with an inductive load subjects them to high voltage. B) Capacitors increase the voltage to the motor. C) They are over-rated as a safety measure. D) They are charge with a high voltage at the factory.
The space in a room is measured by:
A) Feet. B) Inches. C) Square feet. D) Cubic feet.
Newer-style gun burners with special air-handling parts should be set in what range of CO2 percentage?
A) 7—9 percent B) 11—13 percent C) 9—11 percent D) 0—3 percent