Question

1. two junction boxes are each located on different walls, 18\ from the same corner. given a 90° bend with a take - up of 6\ and a gain of 4\, what is the developed length of the conduit between them?

a) 26\
b) 32\
c) 36\
d) 46\

1. which of the following should be used to cut emt?

a) pipe cutter
b) table saw
c) hacksaw
d) chop saw

1. rmc, imc, and emt are available in standard lengths of ______.

a) 4
b) 6
c) 8
d) 10

1. the first step in reaming conduit is to ______.

a) insert the reamer tip into the conduit
b) secure the conduit in a pipe vise
c) rotate the reamer
d) smooth the edge with coarse sandpaper

1. which of the following is most commonly used to cut rmc and imc?

a) chop saw
b) reciprocating saw
c) table saw
d) pipe cutter

1. a pocket knife can be used to deburr ______.

a) pvc
b) imc
c) rmc
d) emt

Explanation:

1. Calculate total straight length, adjust for bend take-up/gain: sum distances from corner, subtract take-up, add gain.
2. EMT (thin-walled metal conduit) is properly cut with a hacksaw for clean, controlled cuts.
3. RMC, IMC, and EMT are standardized to 10-foot stock lengths.
4. Reaming conduit requires first securing the conduit to prevent movement during the process.
5. RMC and IMC (thick-walled metal conduits) are most commonly cut with a pipe cutter for precise, clean results.
6. PVC (plastic conduit) can be safely deburred with a pocket knife without damaging the material or tool.

Answer:

1. b) 32"
2. c) Hacksaw
3. d) 10'
4. b) secure the conduit in a pipe vise
5. d) Pipe cutter
6. a) PVC