Describe the iridium spark plug and its benefits.
What will be an ideal response?
The iridium spark plug is the longest-life spark plug available, will last 50 percent longer, and is eight times stronger and six times harder than a platinum plug. In addition, the iridium plug has a melting point of 4449°F (2454°C), which is 1256°F (680°C) higher than the melting point for a platinum plug.
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J. J. is building a tool shed 32 feet wide and 64 feet long with a footer 18 inches wide and 9 inches deep. How many yards (yards means cubic yards) of concrete should be ordered?
What will be an ideal response?
To determine the number of floor joists needed in a floor frame, divide the length of the building by the ____ and add one.
a.width b.height c.volume d.spacing
The length of the hip roof ____ is found by subtracting the width of the building from the length of the building.
a.ridgeboard b.rafter c.backing d.plate
What value of force P is required at C in Figure P7.19 if the vertical deflection at C is to be zero? Solve by the moment-area method. EI is constant unless otherwise noted.
