Definitions
Fractions, Decimals & Percentages
Ratios and Proportions and Calculations
Units of Measurements
Measuring Tools
100

Study of numbers, quantity, shapes and the relationships among them 

The Definition of mathematics

100

Parts of whole numbers expressed as a numerator over a line or slash with a denominator below

Fractions

100

Proportions state what

Two ratios are equal

100

Permissible deviation from a specified measurement

Tolerance

100

Can be used to measure operational temperatures of
an engine for diagnostics

Infrared laser thermometer

200

Measures the rotational effect of a force

Torque

200

Is the smallest number which is a multiple of all of the fractions’ denominators

Lowest Common Denominator

200

Are comparisons of numbers

Ratios

200

Watts are a unit of which type of measurement

Power

200

Lidar stands for what

Light detection and ranging

300

Measures the rate at which work is done

Power

300

Is recommended when performing basic math functions with percentages

Convert them to decimals first

300

The diameter of cylinders in a piston engine

Bore

300

Correct method for converting degrees Fahrenheit to
degrees Celsius

Subtract 32, then divide by 1.8

300

Can be used to measure the diameter of a hole

Inside micrometer

400

Key word, “split” used in a word problem likely indicates which of the following
operations

Division

400

Parts of whole numbers expressed as digits placed to the right of a decimal point

Decimals

400

Will reduce or displace volume from the combustion
chamber and increase compression

Domed piston

400

The U.S. customary system is defined and governed by what institute

National Institute of Standards and Technology (NIST)

400

Measures the clearance or gap between two parts

Feeler gauge

500

The process of determining the quantitative size or amount of an item

Measurement

500

Parts of whole numbers expressed in hundredths followed by a this symbol (%)

Percentages

500

Formula used to calculate horsepower

(RPM x T)/5252

500

One horsepower converts to approximately how many watts

745.7

500

Places a load on the engine to measure the amount of
power the engine can produce against the load

Dynamometers

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