Test on Practical Math: Geometry, Scales, and Plans
Practical Math: Geometry, Scales, & Plans Explained for Students
Map scales
19 questions
Question 1: The bar scale proportion formula provided indicates that the 'length of bar scale' is a component of the main denominator.
A. Ano
B. Ne
Explanation: The bar scale proportion formula is given as $ \frac{(\text{Map distance} \div \text{length of bar scale}) \times (\text{real value of bar scale})}{(\text{at bar scale})} $. In this formula, 'length of bar scale' is found in the numerator, specifically as a divisor for 'Map distance', and not as a component of the main denominator, which is 'at bar scale'.
Question 2: When a map has a number scale of 1:50,000, it indicates that 50,000 units on the map correspond to 1 unit in real life.
A. Ano
B. Ne
Explanation: The study materials state that a number scale of 1:50,000 means that 1 unit on the map is equal to 50,000 units in real life, not the other way around.
Question 3: A number scale remains accurate when the map it is on is resized.
A. Ano
B. Ne
Explanation: One of the disadvantages of a number scale is that it becomes incorrect when resized.
Question 4: A bar scale is represented by a visual line or bars that are divided into equal parts.
A. Ano
B. Ne
Explanation: The study materials define a bar scale (or linear scale) as 'a visual line or bars divided into equal parts that represent real distances.' This confirms that its visual representation includes segments of equal size.
Question 5: A number scale is very accurate when used correctly.
A. Ano
B. Ne
Explanation: One of the advantages of a number scale is that it is very accurate when used correctly, as stated in the study materials.