The letters P, Q, R, and S represent four type of tires.

Tire P is 10 inches wide.

 

Tire Q is 20 inches wide.

Tire R is 30 inches wide.
Tire S is 40 inches wide.
These tires are fitted in pairs on a motorcycle. Consider that all four tire types are manufactured of the same material, have the same air pressure and radius, and are fitted to the same motorcycle. The motorcycle is driven on the same road every time the tires are changed. Given this information, which tire, when fitted in pairs on a motorcycle, will help prevent high fuel consumption?

How much force is required at Point C in order to lift the weight at Point B?.

A circular portion of the 20 cm radius is cut from a rectangular steel sheet of 50 cm x 60 cm. What is the area of the remaining portion of the sheet?

Which choices (1 to 4) would correctly fill the missing space?

How much weight must be placed at point D in order to balance the lever?

A bolt or a nut is tightened by turning it in a clockwise direction and loosened by turning it counterclockwise. What type of threads do bolts or nuts have?

If gear A in the above diagram rotates at a speed of 20 RPM in a clockwise direction, then the direction of rotation and speed of gear F will be ___________________.

Description: https://www.expertrating.com/qimages/Mechanical-IQ-Images17.jpg Use your mechanical measurement skills to visually judge which combination of hooks in the above diagram will hold the board A properly on board B.

A force of 15 lbs compresses springs arranged in a linear series of 24 cm each. If the same force of 15 lbs is applied to parallel springs, the springs will be compressed by _____________________.

If each arrow in the above diagram represents an equal number of students moving on a path, then which path is the most crowded?

Which arrow will have the maximum mechanical advantage (ratio of load lifted to effort applied) of lifting the load of 30 lbs most efficiently?