CIT Cable and Wire Harness Assembly Requirements

Question 1

What is the purpose of using strain relief in wire harness assemblies?

Accepted Answer

To prevent stress on terminations

Answer

To increase wire resistance

Answer

To improve signal transmission

Answer

To extend the wire length

Question 2

According to IPC/WHMA-A-620, what is the acceptable insulation gap for a crimped terminal?

Accepted Answer

0 to 1 wire diameter

Answer

No gap allowed

Answer

More than 2 mm

Answer

Half the conductor length

Question 3

What indicates a properly crimped terminal connection?

Accepted Answer

Full conductor compression with no exposed strands

Answer

Loose insulation

Answer

Wire easily pulls out

Answer

Crimp located on insulation only

Question 4

Which IPC class has the highest requirements for cable and wire harness assemblies?

Accepted Answer

Class 3 – High-performance products

Answer

Class 1 – General electronic products

Answer

Class 2 – Dedicated service products

Answer

Class 0 – Experimental builds

Question 5

What is the purpose of a continuity test in wire harness assembly?

Accepted Answer

To verify electrical path integrity

Answer

To check for overvoltage protection

Answer

To confirm proper routing of insulation

Answer

To test thermal conductivity

Question 6

What is the function of lacing or sleeving in wire harnesses?

Accepted Answer

To protect and bundle wires

Answer

To increase insulation resistance

Answer

To serve as a heat sink

Answer

To limit current flow