almin is driving on his bycycle in coming to school every day.Which surface will produce greatest amount of friction? A.soccer field B.smooth floor C.rocky road D.concreated pathway
Answer (2)
Welding current is an important welding factor because it directly affects the quality and strength of the weld. That heat comes from heat generated as the electrical current flows through the welding arc, and melts the base metal and filler metal together.The appropriate welding current depends on several factors, including:1. Thickness of the base metal: Base metals of higher thickness need higher welding currents for developing adequate penetration.2. Welding position: High currents in overhead or vertical positions are required to counteract gravity and to achieve proper fusion.3. Type of joint: Welding current requirements vary with different joint configurations.
The rocky road's uneven and rough texture creates more resistance against the bicycle tires compared to the other smoother surfaces, resulting in the highest level of friction.
