EETC Conduit & Raceway Systems 2

Question 1

When making a 90° stub-up bend with a hand conduit bender, the term 'deduction' or 'take-up' refers to:

Accepted Answer

The amount subtracted from the desired stub height to mark the bend point

Answer

The deduction (take-up) is the amount subtracted from the desired finished stub height to determine where to place the arrow mark on the conduit before bending, accounting for the conduit that travels through the curve.

Question 2

An 'offset bend' in conduit is used to:

Accepted Answer

Shift the conduit parallel to itself to clear an obstacle such as a beam

Answer

An offset consists of two equal bends in opposite directions that shift the conduit sideways while maintaining the same general direction, allowing it to bypass beams, pipes, or other obstructions.

Question 3

The 'gain' (or 'shrinkage savings') in conduit bending refers to:

Accepted Answer

The length saved because conduit travels diagonally through the curve rather than in a right-angle path

Answer

Gain is the length saved in a bend because the conduit travels along the arc of a curve rather than along two straight legs meeting at a right angle, so less total conduit is needed than a simple right-angle calculation would suggest.

Question 4

When installing EMT into an enclosure located in a wet location, the NEC requires:

Accepted Answer

Compression-type fittings listed and marked for wet or rain-tight use

Answer

NEC 358.42 requires fittings used in wet locations to be listed for wet locations; compression-type fittings provide the rain-tight or wet-location seal required by the Code.

Question 5

The maximum spacing between conduit supports for 3/4-inch EMT installed in a horizontal run is:

Accepted Answer

10 feet

Answer

NEC 358.30 requires EMT to be supported at intervals not exceeding 10 feet for trade sizes up to and including 1-1/4 inches, and within 3 feet of each outlet box or fitting.

(EETC) Electrical Technician Certification Practice Test

(EETC) Electrical Technician Certification Practice Test

EETC Conduit & Raceway Systems 2