EIAT - Elevator Industry Aptitude Fractions and Decimals Computation Questions and Answers

Question 1

An elevator technician has a spool of wire that is 82.5 feet long. If they need to cut 12 pieces of wire that are each 6 1/4 feet long, how many feet of wire will be left on the spool?

Accepted Answer

7.5 feet

Answer

First, convert the mixed number to an improper fraction or a decimal. 6 1/4 feet is equal to 6.25 feet. Next, calculate the total length of wire needed by multiplying the number of pieces by the length of each piece: 12 pieces * 6.25 feet/piece = 75 feet. Finally, subtract the total length of wire used from the initial length of the spool: 82.5 feet - 75 feet = 7.5 feet.

Question 2

A mechanic needs to mix a solution that is 3/8 oil and the rest is a solvent. If the total container holds 32 ounces, what is the volume of the solvent in ounces?

Accepted Answer

20 ounces

Answer

First, calculate the volume of oil: (3/8) * 32 ounces = 12 ounces. The rest of the solution is solvent. To find the volume of the solvent, subtract the oil volume from the total volume: 32 ounces - 12 ounces = 20 ounces. Alternatively, if the oil is 3/8 of the solution, then the solvent must be 1 - 3/8 = 5/8 of the solution. (5/8) * 32 ounces = 20 ounces.

Question 3

Which of the following values is the largest?

Accepted Answer

13/20

Answer

To compare the values, convert all of them to decimals. 5/8 = 0.625. 13/20 can be converted by multiplying the numerator and denominator by 5 to get 65/100, which is 0.65. Now compare the decimal values: 0.625, 0.6, 0.62, and 0.65. The largest value is 0.65, which is equivalent to 13/20.

Question 4

An elevator car is rated to carry 2,500 lbs. During a test, a technician loads it with three crates weighing 450.75 lbs, 620.5 lbs, and 515.25 lbs. How much more weight, in lbs, can be added to reach the maximum rated capacity?

Accepted Answer

913.5 lbs

Answer

First, sum the weights of the three crates: 450.75 + 620.5 + 515.25 = 1586.5 lbs. Then, subtract this total weight from the maximum capacity of the elevator: 2,500 lbs - 1586.5 lbs = 913.5 lbs.

Question 5

What is the result of 7/4 divided by 0.25?

Accepted Answer

7

Answer

First, convert both numbers to the same format, either fractions or decimals. As a decimal, 7/4 is 1.75. So, 1.75 / 0.25 = 7. Alternatively, as fractions, 0.25 is 1/4. The problem becomes 7/4 divided by 1/4. To divide by a fraction, you multiply by its reciprocal: 7/4 * 4/1 = 28/4 = 7.

EIAT - Elevator Industry Aptitude Test Practice Test

EIAT - Elevator Industry Aptitude Test Practice Test

EIAT - Elevator Industry Aptitude Fractions and Decimals Computation Questions and Answers