Deck 23: Introduction to Blueprint Reading for Hvac Technicians

Question 1

The _________________________ is defined as the ratio of the side opposite to an acute angle divided by the hypotenuse or (Sine A = a/c).

Answer 1

Sine Function

Question 2

To convert from radians to angular degrees, divide ____________________ angular degrees by 3.14 radians; multiply the quotient by the angle to be converted.

Answer 2

180

Question 3

To convert angular degrees to radians, divide 3.14 radians by 180 angular degrees, multiply the quotient by the angle to be converted.

Answer 3

True

Question 4

Trigonometry is the branch of mathematics concerned with the relationship between the sides and angles of triangles.

Question 5

______________________________ states that the square of the hypotenuse, of a right triangle, is equal to the sum of the square of the other two sides or R² = X² + Y²

Question 6

Not all objects consist of points and lines.

Question 7

A ____________________ is the angle opposite to an arc length when the arc length is equal to the length of the radius.

Question 8

Since the circumference of any circle contains 360 degrees, an Angular Degree is equal to 1/360th of the circumference of a circle.

Question 9

______________________________ Is the measurement of two points along a straight line.

Question 10

In a third angle projection, the top view is generated by projecting the object's contours down onto the horizontal plane.

Question 11

The ______________________________ is defined as the ratio of the side adjacent to an acute angle divided by the hypotenuse or (Cosine A = b/c), and the ______________________________ is defined as the ratio of the side opposite to an acute angle divided by the side adjacent (Tan A = a/b).

Question 12

The circumference of any circle contains ____________________ radians; therefore a radian is equal to 1/6.283 of that circumference.

Question 13

The right side view is generated by projecting the right side of the object through the object to the profile plane.

Question 14

In the HVAC industry a point can be the center location of a gas line or the edge of a rectangular duct.

Question 15

In a ______________________________ none of the three-principle axis forms equal angles.