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This quiz consists of 5 multiple choice and 5 short answer questions through Part Four: Electricity and Automation.

Multiple Choice Questions

1. What controls direction on a ship?
(a) A rudder.
(b) A valve.
(c) A screw.
(d) A drive.

2. How does a zipper operate?
(a) It is not a wedge system, but rather a rolling arc system.
(b) The use of triangular wedges and lower curved wedges.
(c) Just using triangular wedges.
(d) Just lower curved wedges.

3. What is the action of something burning?
(a) Convection.
(b) Radiation.
(c) Combustion.
(d) Molecular deceleration.

4. What additional tasks can a boat with two triangular sails do?
(a) Achieve one additional suction force.
(b) Divide the suction force.
(c) Achieve two additional suction forces.
(d) Multiply the suction force by three.

5. What are two things a sail can do for a craft?
(a) Propel and stop.
(b) Lift and Slow.
(c) Give pulpulsion and direction.
(d) Propel and repel.

Short Answer Questions

1. What is one example the author uses of a wedge?

2. What controls the movement in a gear system?

3. What are tanks that take in water to increase the density of the craft?

4. What turns the crankshaft in an internal combustion engine?

5. What are the effects of electricity?

(see the answer key)

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