High School Math
Solve the following equation. Round 3 places.
10 1/4 x .575
5.89375 > 5.894
How much of the total man hours can be spent on bending pipe on a big project?
Half the total
When a 90 degrees bend has been made the shorter side is called the _____ and the longer side the _____.
Stud/ Stud up
Leg
What's the Largest size EMT and RMC conduit you can bend with a hand bender?
1 1/4" EMT
1" RMC
A blade used for cutting rigid metal conduit should have a TPI of ?
Bonus What is TPI?
24
Express 7/16" in decimals.
.4375
Which Type of the basic Metal type conduits do you not need to thread?
Electrical Metallic Tubing (EMT)
Where would your mark be on a piece of ¾” EMT, if you need to make a 39” stud?
At 33"
What is the multiplier for 45°?
1.4
All three angles of a right triangle always equals ____ degrees?
180
With this type of fraction, the denominator is bigger than the numerator and there is no whole number.
Common/Proper Fractions
Factory made bends can _____ material costs for a large conduit bending job. (Increase/Decrease)
Increase
The correct way to measure a stub-up is from?
Back of the Bend.
Ideally what type of bend do you use to go over/under a circular object?
3 Point Saddle
True/False: IMC, RMC, and PVC are all suitable for underground installation.
True
You are to drill 6 holes side-by-side in a panel with 1 1/4 inch between each hole. 4 holes measure 1 1/2 inches and 2 holes measure 2 1/4 inches. How much space will you need for the holes?
16 1/2"
Calculators, Protractors, and No-dog levels can greatly _____ the time it takes to lay out and bend conduit.
Decrease.
True/False: When measuring for a back-to-back 90° bend the correct dimension will be from inside to inside of bend?
False
outside to outside
How do you calculate the distance between bends when fabricating an offset of saddle?
(Obstruction rise x angle multiplier)
The difference in the length between the overall Stub-Up height and the bending reference mark is?
Take-up
Convert .6875 to a fraction that can be read on a tape measure.
11/16"
What are the four basic types of conduit/ tubing?
Electrical Metallic Tubing
Intermediate Metallic Conduit
Ridgid Metal Conduit
Rigid Polyvinyl Chloride Conduit (PVC)
True/False: When using the push-through method, it require I spin the conduit around, then resume bending.
You push it through
Calculate the overall length of conduit after bending a 30° four-bend saddle over a 8" obstruction (use 1/4" for shrink).
116"
120 - ((8 x 1/4) x 2 = 116"
When making a 3 point saddle the center bend is made using the _____ mark on the bender, and the _____ ° angle. The second and third bends are made using _____° with the center bend ______ (Infront/behind) the shoe?
Rim Notch, 45/30°, 22½/15°, Infront