Mechanical Comprehension Test

Question 1: Which of the following simple machines is a flat surface inclined at an angle to the horizontal?

Question 2: What law states that for every action, there is an equal and opposite reaction?

Question 3: In a hydraulic system, what is the purpose of the piston?

Question 4: Which type of gear system changes the direction of rotation?

Question 5: What is the SI unit of force?

Question 6: In an electrical circuit, what does a resistor do?

Question 7: What does the term 'mechanical advantage' refer to in a machine?

Question 8: In a lever system, where is the fulcrum located?

Question 9: Which of the following materials is a good conductor of electricity?

Question 10: What law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted?

Question 11: In a hydraulic system, what is the purpose of the reservoir?

Question 12: Which of the following is an example of a third-class lever?

Question 13: What is the function of a flywheel in a machine?

Question 14: In a gear system, if the driver gear has 20 teeth and the driven gear has 40 teeth, what is the gear ratio?

Question 15: Which of the following is an example of a first-class lever?

Question 16: What is the purpose of a pulley in a system?

Question 17: In an electrical circuit, what does a capacitor do?

Question 18: Which of the following is an example of a second-class lever?

Question 19: What is the formula for calculating mechanical advantage in a simple machine?

Question 20: In a lever system, where is the effort force applied?

Question 21: What is the purpose of a gear in a machine?

Question 22: In a hydraulic system, what is the purpose of the pump?

Question 23: What is the purpose of a cam in a mechanical system?

Question 24: Which of the following is an example of a fixed pulley?

Question 25: What is the function of a diode in an electrical circuit?

Question 26: In a lever system, where is the load force located?

Question 27: Which of the following is an example of a compound machine?

Question 28: What law of thermodynamics states that heat always flows from hot to cold?