Question 1

What mechanical advantage does the block and tackle arrangement in the above figure give?
Question 2
The sum of two numbers is 70. One number is 8 more than the other. What's the smaller number?
Question 3
A training certificate composed on a personal computer that was designed to be nine inches long and six inches wide has to be proportionately enlarged so that its length will be 12 inches. How many inches wide will the enlarged certificate be?
Question 4
The gas gauge in an auto relies on what mechanical device to measure the amount of gas in the tank?
Question 5
Determine which of the choices best solves the problem shown in the first picture and then mark the corresponding choice on your answer sheet. The problem is presented in the first drawing and the remaining four drawings are possible solutions.


