Maxillary and Mandibular First Molars Have a Fifth or Supplemental

question 30

Multiple Choice

Maxillary and mandibular first molars have a fifth or supplemental cusp.This additional cusp,the cusp of Carabelli,is located on the mesiolingual cusp tip.

• A) Both statements are true.
• B) The first statement is true;the second statement is false.
• C) The first statement is false;the second statement is true.
• D) Both statements are false.

---

Definitions:

Multiplexing

A method for combining multiple signals or data streams into one, reducing the number of physical wires or channels needed.

Computer Processing

The series of actions performed by a computer or processor to execute commands and run programs.

SAE J1587/1708 Data Bus

Communication protocols used in the heavy-duty vehicle industry for exchanging electronic information between control units and devices.

Data Connector

The means of connecting an electronic service tool (EST) to a chassis data bus. Data bus connectors can be six-pin (J1587/1708) or the newer nine-pin (J1939) Deutsch black and green connectors. All U.S.-built trucks have a data connector located on the left side of the steering column, either under the dash or to the left side of the driver’s seat.