MECP Masters Study Guide 2025/2026
Exam Questions and Verified Answers |
Already Graded A+
Cars in 1982 - 🧠ANSWER ✔✔About 500 wires
Cars in 1992 - 🧠ANSWER ✔✔About 2000 wires
Appropriate substitute for a relay in a low current DC switching application.
- 🧠ANSWER ✔✔NPN Transistor
Time constant formula for capacitors. - 🧠ANSWER ✔✔1 TC = R x C
(Resistance x Capacitance)
Can be placed on a relay to protect transistorized outputs on an ECU. -
🧠ANSWER ✔✔Silicon Diode (place in parallel across the coil terminals)
,In a NPN transistor, the direction of the arrow indicates. - 🧠ANSWER
✔✔The N material
On the OBD-II diagnostic connector the supply B+ and ground are. -
🧠ANSWER ✔✔Pin 4 is chassis ground and pin 16 is B+
Character that represents an OBD-II network diagnostic trouble code. -
🧠ANSWER ✔✔U
MOSFETS - 🧠ANSWER ✔✔metal oxide semiconductor field effect
transistor
JFET - 🧠ANSWER ✔✔junction field effect transistor
Logic gates - 🧠ANSWER ✔✔semiconductor that allow the smallest of
currents(voltages) to control much larger voltages or currents
The "AND" Gate - 🧠ANSWER ✔✔both inputs much be True
The "OR" Gate - 🧠ANSWER ✔✔any one of the inputs can be True
The "NOT" Gate - 🧠ANSWER ✔✔simply inverts the input
Over what conductor configuration is MOST 50 ePHY transmitted? -
🧠ANSWER ✔✔A Dual UTP of four wires
, In an OBD-II complaint DTC what does the first character "U" represent? -
🧠ANSWER ✔✔A network related code
OBD-II DTCs that do not trigger immediate MIL activation and deley as
many as three drive cycles before triggering an MIL are called soft codes. -
🧠ANSWER ✔✔False
In which pin locations of an SAE J1962 OBD-II connector are the HS CAN
High and HS CAN Low diagnostic bus wires found? - 🧠ANSWER ✔✔Pins 6
and 14
What is the output result of the AND logic gate if input A equals 0 and input
B equals 1 ? - 🧠ANSWER ✔✔0
MECP recommended practice of safely testing voltage using the one-
handed rule is for circuit voltages exceeding 50 volts. - 🧠ANSWER ✔✔True
What is the operating voltage of a LIN bus network? - 🧠ANSWER ✔✔12
volts
What is the recommended shielding gas used in wire-feed MIG welding
when welding mild steel? - 🧠ANSWER ✔✔C25
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Verified Answers |
Already Graded A+
Cars in 1982 - 🧠ANSWER ✔✔About 500 wires
Cars in 1992 - 🧠ANSWER ✔✔About 2000 wires
Appropriate substitute for a relay in a low current DC switching application.
- 🧠ANSWER ✔✔NPN Transistor
Time constant formula for capacitors. - 🧠ANSWER ✔✔1 TC = R x C
(Resistance x Capacitance)
Can be placed on a relay to protect transistorized outputs on an ECU. -
🧠ANSWER ✔✔Silicon Diode (place in parallel across the coil terminals)
,In a NPN transistor, the direction of the arrow indicates. - 🧠ANSWER
✔✔The N material
On the OBD-II diagnostic connector the supply B+ and ground are. -
🧠ANSWER ✔✔Pin 4 is chassis ground and pin 16 is B+
Character that represents an OBD-II network diagnostic trouble code. -
🧠ANSWER ✔✔U
MOSFETS - 🧠ANSWER ✔✔metal oxide semiconductor field effect
transistor
JFET - 🧠ANSWER ✔✔junction field effect transistor
Logic gates - 🧠ANSWER ✔✔semiconductor that allow the smallest of
currents(voltages) to control much larger voltages or currents
The "AND" Gate - 🧠ANSWER ✔✔both inputs much be True
The "OR" Gate - 🧠ANSWER ✔✔any one of the inputs can be True
The "NOT" Gate - 🧠ANSWER ✔✔simply inverts the input
Over what conductor configuration is MOST 50 ePHY transmitted? -
🧠ANSWER ✔✔A Dual UTP of four wires
, In an OBD-II complaint DTC what does the first character "U" represent? -
🧠ANSWER ✔✔A network related code
OBD-II DTCs that do not trigger immediate MIL activation and deley as
many as three drive cycles before triggering an MIL are called soft codes. -
🧠ANSWER ✔✔False
In which pin locations of an SAE J1962 OBD-II connector are the HS CAN
High and HS CAN Low diagnostic bus wires found? - 🧠ANSWER ✔✔Pins 6
and 14
What is the output result of the AND logic gate if input A equals 0 and input
B equals 1 ? - 🧠ANSWER ✔✔0
MECP recommended practice of safely testing voltage using the one-
handed rule is for circuit voltages exceeding 50 volts. - 🧠ANSWER ✔✔True
What is the operating voltage of a LIN bus network? - 🧠ANSWER ✔✔12
volts
What is the recommended shielding gas used in wire-feed MIG welding
when welding mild steel? - 🧠ANSWER ✔✔C25
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
