Cogwheel number 1 rotates counterclockwise as shown.
If the red cogwheel rotates in the direction of the arrow choose option 1; if it rotates in the opposite direction choose option 2; if the red cogwheel does not move at all choose option 3.
A tube is attached to the left-hand side of a connector. Two tubes, situated one on top of the other, are connected to the right-hand side. Water enters the system from the left tube, flows at a constant velocity through the connector, and exits via the two right-hand tubes. At which opening is the velocity of water the greatest?
Which tool or combination of tools would be most useful for general woodwork?
Which tool or combination of tools would be most useful for repairing a broken radio?