RECF Mechanical Pre-Test 100% Correct Solved

RECF Mechanical Pre-Test 100% Correct Solved in order to raise the arm of a roboy, the last of 4 spur gears in a simple gear train must rotate clockwise. in what direction does the input (first) gear turn? - Answer️️ - counterclockwise a robot has wheels with 4 inch diameter. Each wheel rolls 5 revolutions on a horizontal surface without slipping. how far did the robot travel? - Answer️️ -62.8 inches which of the following statements is equivalent of the first law of thermodynamics? - Answer️️ -energy cannot be created or destroyed one hot day matt's air conditioner broke. he thought of an idea to cool his house by opening his refrigerator. three hours later his house temperature went up by two degrees. why did this happen? - Answer️️ -the condenser on the refrigerator ran constantly two children are playing on a see-saw. the one on the left weighs 80 lbs and the one on the right weighs 100 lbs. if the child on the left is 3 feet from the pivot, how far must the child from the right be for the see-saw to be balanced? - Answer️️ -2.4 ft which of the following types of gears would be found in a parallel shaft gear train? - Answer️️ -spur gears what type of simple machine is in the nutcracker pictured? - Answer️️ -second class lever