If one of the acute angles of a right triangle is 22 1/2 degrees, the other acute angle is _____.
WHAT IS
67 1/2 degrees
Guides for cutting miters and for marking contours are known as _____.
WHAT IS
ordinate lines
A 12", four-piece, 45-degree mitered turn has cuts made at a(n) _____.
WHAT IS
7 1/2-degree angle
In order to lay out laterals, first calculate the angle of the short side of the cut, which always equals
WHAT IS
one-half the angle of the lateral for the short side
The length of the travel for a simple 45-degree offset is found by multiplying the set by the constant
_____.
WHAT IS
1.414
To make a 22 1/2 degree turn, join two pipes that have been cut with _____.
WHAT IS
11 1/4-degree miters
To what angle are the miters between the branches and header cut if the 120-degree wye is to be 60 degrees?
WHAT IS
15 degrees
A lateral is the intersection of two pipes at LESS than _____.
WHAT IS
90 DEGREES
The set and travel for all the lines in an equal-spread offset are _____.
WHAT IS
always the same
What does a tank coil provide to a vessel to keep a material molten?
WHAT IS
Steam or heated liquid
The longest leg of a 6", 90-degree Schedule 40 riser on a 10" Schedule 40 header (OD is 10.75") is
WHAT IS
15/16"
The first step in laying out a 45-degree lateral without using reference charts is to _____.
WHAT IS
measure the exact inside and outside diameter of the pipe
The three basic sides of an offset are the set, run, and _____.
WHAT IS
travel
How many segments of pipe are used in a 90-degree mitered turn that is at least 12" in diameter?
WHAT IS
4 to 7
The laying out of laterals without references involves the use of _____.
WHAT IS
drafting tools
When measuring a mitered turn, the number of degrees per miter in a four-piece, 90-degree elbow (3 welds) is _____.
WHAT IS
15 degrees
5. Calculating unequal-spread offsets is necessary to _____.
WHAT IS
move piping around an object
Refer to the figure provided. What type of support is concentric on the center line radius of the elbow?
WHAT IS
Type 1 support
The formula for center-to-center length of each segment of a mitered turn is _____.
WHAT IS
2 × the radius × the tangent of the miter
The first step in laying out and fabricating a three-piece, 90-degree mitered turn is to _____.
WHAT IS
find the number of degrees in each miter