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Key Facts: EGEL Plus Ingeniería Mecatrónica Exam

200

Total items on the official EGEL Plus IMECATRO (140 disciplinary + 60 transversal)

Ceneval, Guía para el sustentante EGEL Plus IMECATRO

9 hours

Two sessions of 4.5 hours each on the same day

Ceneval, Guía para el sustentante EGEL Plus IMECATRO

1000

Minimum Índice Ceneval for a Satisfactorio level in an area or section

Ceneval, Guía para el sustentante EGEL Plus IMECATRO

1150

Minimum Índice Ceneval for a Sobresaliente level

Ceneval, Guía para el sustentante EGEL Plus IMECATRO

MXN 1,885

Individual national Examen desde casa fee in 2026

Ceneval EGEL portal

Ceneval's EGEL Plus IMECATRO is a 200-item, nine-hour Spanish exit exam: 140 disciplinary items in three areas plus 60 transversal language and communication items.

Sample EGEL Plus Ingeniería Mecatrónica Practice Questions

Try these sample questions to review concepts for the EGEL Plus Ingeniería Mecatrónica exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A planar packaging mechanism consists of 4 moving rigid links (excluding the fixed ground link) connected by 5 lower kinematic pairs (revolute and prismatic joints, each with 1 degree of freedom) and 1 higher kinematic pair (cam-follower rolling contact with 2 degrees of freedom). According to Grübler's mobility formula for planar mechanisms (M = 3(n - 1) - 2*j1 - j2, where n is total links including ground), what is the net mobility (degrees of freedom) of the mechanism?
A.1 degree of freedom
B.2 degrees of freedom
C.3 degrees of freedom
D.0 degrees of freedom (statically determinate structure)
Explanation: In Grübler's planar mobility formula, n represents the total number of links including ground, so n = 4 moving links + 1 ground link = 5 links. With j1 = 5 single-DOF joints and j2 = 1 two-DOF higher pair, M = 3(5 - 1) - 2(5) - 1(1) = 3(4) - 10 - 1 = 12 - 11 = 1 degree of freedom. This allows the mechanism to be driven predictably by a single actuator.
2A coordinate frame {B} is attached to a robotic wrist that is rotated by +90° counterclockwise around the Z-axis of the base reference frame {A} and translated by position vector ^A P_B_org = [100, 50, 0]^T mm. A sensor detects a workpiece located at coordinates ^B P = [20, 10, 0]^T mm relative to frame {B}. What are the coordinates of this workpiece in the base frame {A} (^A P = ^A T_B * ^B P)?
A.[120, 60, 0]^T mm
B.[90, 70, 0]^T mm
C.[110, 30, 0]^T mm
D.[80, 50, 0]^T mm
Explanation: The rotation matrix for +90° about Z is R_z(90°) = [[0, -1, 0], [1, 0, 0], [0, 0, 1]]. Rotating point ^B P yields R * ^B P = [0*(20) + (-1)*(10), 1*(20) + 0*(10), 0]^T = [-10, 20, 0]^T mm. Adding the translation vector ^A P_B_org = [100, 50, 0]^T gives ^A P = [-10 + 100, 20 + 50, 0 + 0]^T = [90, 70, 0]^T mm.
3In standard Denavit-Hartenberg (DH) kinematic modeling of serial robot manipulators, how are the link length (a_i) and link twist (alpha_i) parameters defined between joint axis i-1 (z_{i-1}) and joint axis i (z_i)?
A.a_i is measured along z_{i-1}, and alpha_i is the angle between x_{i-1} and x_i measured about z_i
B.a_i is the distance along z_i, and alpha_i is the angle between z_{i-1} and z_i measured about y_i
C.a_i is the distance along the common normal x_i, and alpha_i is the angle between z_{i-1} and z_i measured about x_i
D.a_i is the direct Euclidean distance between link centers of mass, and alpha_i is the actuator tilt angle
Explanation: In standard DH convention, the common normal between z_{i-1} and z_i defines the x_i axis. Link length a_i is the orthogonal distance along x_i from z_{i-1} to z_i, and link twist alpha_i is the angle from z_{i-1} to z_i measured around the x_i axis following the right-hand rule.
4A planar two-link revolute manipulator with link lengths l1 and l2 has end-effector position equations x = l1*cos(q1) + l2*cos(q1 + q2) and y = l1*sin(q1) + l2*sin(q1 + q2). Under which joint configuration does this manipulator reach a kinematic singularity where the Jacobian determinant det(J) vanishes?
A.q1 = 90° and q2 = 45°
B.q1 = 0° and q2 = 90°
C.q2 = 90° or q2 = 270°
D.q2 = 0° or q2 = 180°
Explanation: The linear velocity Jacobian J has determinant det(J) = l1*l2*sin(q2). The determinant equals zero precisely when sin(q2) = 0, which occurs at q2 = 0° (arm fully extended at workspace boundary) and q2 = 180° (arm fully folded back onto itself). At these singular configurations, radial end-effector motion is instantaneously impossible.
5A mechatronic positioning axis has a total moment of inertia J_total = 0.005 kg·m² reflected to the servomotor shaft. The mechanism experiences a continuous frictional and load resistance torque T_load = 1.20 N·m. What electromagnetic torque T_motor must the servomotor deliver to accelerate the axis from rest to an angular speed of 1500 RPM in exactly 0.20 seconds with constant acceleration?
A.5.13 N·m
B.3.93 N·m
C.2.73 N·m
D.1.20 N·m
Explanation: First, convert rotational speed to rad/s: omega = 1500 * (2*pi / 60) = 50*pi ≈ 157.08 rad/s. The angular acceleration is alpha = omega / delta_t = 157.08 / 0.20 = 785.4 rad/s². The inertial torque required is T_accel = J * alpha = 0.005 * 785.4 = 3.927 N·m. Total motor torque is T_motor = T_accel + T_load = 3.927 + 1.20 = 5.127 N·m ≈ 5.13 N·m.
6A rotary indexing table has a load inertia J_load = 0.18 kg·m² and is coupled to an electric servomotor with rotor inertia J_motor = 0.00020 kg·m² through a speed-reducing gearbox with gear ratio N = 30:1 (where N = omega_motor / omega_load). What is the total effective moment of inertia seen by the motor shaft, and does this system satisfy the classical inertia matching condition for maximum acceleration?
A.0.00620 kg·m²; it does not satisfy inertia matching
B.0.00040 kg·m²; it satisfies exact 1:1 inertia matching
C.0.18020 kg·m²; it suffers from excessive load mismatch
D.0.00020 kg·m²; it satisfies matching by eliminating load inertia
Explanation: Reflected load inertia scales inversely with the square of the gear ratio: J_ref = J_load / N² = 0.18 / (30)² = 0.18 / 900 = 0.00020 kg·m². The total inertia seen by the motor shaft is J_total = J_motor + J_ref = 0.00020 + 0.00020 = 0.00040 kg·m². Because J_ref = J_motor (an inertia ratio of exactly 1:1), the system achieves ideal inertia matching for maximum load acceleration.
7In a standard three-op-amp instrumentation amplifier used for sensor signal conditioning, the first buffer stage has feedback resistors R1 = 25 kΩ and gain-setting resistor Rg = 1.0 kΩ. The second stage differential amplifier has input resistors R2 = 10 kΩ and feedback resistors R3 = 50 kΩ. What is the total differential voltage gain A_d = V_out / (V2 - V1)?
A.255
B.250
C.130
D.51
Explanation: The gain of a three-op-amp instrumentation amplifier is A_d = (1 + 2*R1/Rg) * (R3/R2). For the first stage: A1 = 1 + 2*(25 kΩ) / (1.0 kΩ) = 1 + 50 = 51. For the second differential stage: A2 = 50 kΩ / 10 kΩ = 5. Multiplying the two stages yields A_d = 51 * 5 = 255.
8A second-order active low-pass Sallen-Key filter uses an operational amplifier with matched resistors R1 = R2 = 10 kΩ and matched capacitors C1 = C2 = 15.9 nF. What is the cutoff frequency (-3 dB point) and the high-frequency attenuation roll-off rate of this filter topology?
A.500 Hz with -20 dB/decade roll-off
B.2.0 kHz with -60 dB/decade roll-off
C.1.0 kHz with -40 dB/decade roll-off
D.10 kHz with -40 dB/decade roll-off
Explanation: The cutoff frequency for an equal-component Sallen-Key low-pass filter is f_c = 1 / (2 * pi * R * C) = 1 / (2 * pi * 10,000 * 15.9e-9) ≈ 1 / (1.0e-3) = 1000 Hz = 1.0 kHz. Because it is a second-order filter containing two reactive poles, the asymptotic attenuation slope is -40 dB/decade (-12 dB/octave).
9In an H-bridge circuit driving a DC motor with PWM, what critical condition causes a catastrophic 'shoot-through' (cross-conduction) fault, and how is it prevented in gate driver hardware/firmware?
A.Both low-side switches turn on simultaneously; prevented by reversing motor polarity
B.Freewheeling diodes conduct in forward bias; prevented by adding series chokes
C.PWM duty cycle drops below 10%; prevented by enforcing a minimum frequency limit
D.Both high-side and low-side switches on the same half-bridge leg conduct simultaneously; prevented by dead-time insertion
Explanation: Shoot-through occurs when both the upper and lower power transistors on the same vertical inverter leg conduct at the same time, creating a direct low-impedance short circuit between the DC power rail and ground. Gate driver ICs and microcontroller timer units prevent this by inserting a programmable 'dead time' delay between turning off one transistor and turning on its complement.
10When designing a solid-state power driver for an industrial mechatronic system, what fundamental trade-off governs the selection between power MOSFETs and Insulated Gate Bipolar Transistors (IGBTs)?
A.IGBTs operate at switching frequencies above 500 kHz, whereas MOSFETs are limited to low-speed switching below 10 kHz
B.MOSFETs exhibit lower conduction losses at lower voltages (<200 V) and permit high switching frequencies (>100 kHz), whereas IGBTs excel at high voltages (>600 V) with high current density at moderate frequencies (<30 kHz)
C.MOSFETs are current-controlled bipolar devices, whereas IGBTs are purely voltage-controlled field-effect devices
D.IGBTs possess zero turn-off tail current, making them superior for ultra-fast PWM modulation compared to silicon MOSFETs
Explanation: Power MOSFETs are majority carrier devices with resistive conduction (R_ds(on)) that feature negligible storage times and enable very fast switching (>100 kHz) at low to medium voltages. IGBTs are minority carrier devices combining a MOS gate with a bipolar output, providing low saturation voltage V_ce(sat) at high currents and voltages (>600 V), but are constrained by turn-off tail current to lower switching frequencies (<30 kHz).

About the EGEL Plus Ingeniería Mecatrónica Exam

Independent EGEL Plus Ingeniería Mecatrónica practice by OpenExamPrep. The official Ceneval examination is in Spanish and has 200 three-option items: 140 disciplinary items in Diseño de sistemas mecatrónicos, Implementación de sistemas mecatrónicos, and Integración de tecnologías para sistemas mecatrónicos, and 60 transversal Lenguaje y Comunicación items. This bank is an English-language study adaptation with four-option multiple-choice questions, not an official translation or format simulation. Disciplinary stems and explanations are in English. Language and communication items keep their Spanish passages and answer options, because Spanish usage is the skill being tested, and give their instructions and explanations in English.

Exam sponsor: Centro Nacional de Evaluación para la Educación Superior (Ceneval). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

200 three-option items: 140 disciplinary items (Diseño de sistemas mecatrónicos 50, Implementación de sistemas mecatrónicos 47, Integración de tecnologías para sistemas mecatrónicos 43) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.

Time Limit

Two sessions of 4.5 hours each on the same day (9 hours in total)

Passing Score

Each area and each section is reported on the Índice Ceneval (700-1300): 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio, 1150-1300 Sobresaliente. The global result is weighted toward the disciplinary section: Satisfactorio or better there earns at least a Testimonio de Desempeño Satisfactorio, and a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación

Exam / Certification Fees

MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

50 of 140 disciplinary items

Diseño de sistemas mecatrónicos

Mechanical systems (11), analog, digital and power electronic systems (11), analog and digital automation and control systems (16), and modeling and simulation (12)

47 of 140 disciplinary items

Implementación de sistemas mecatrónicos

CAD, CAM and CAE technologies (12), sensors and actuators (10), instrumentation (12) and programming of electronic systems (13)

43 of 140 disciplinary items

Integración de tecnologías para sistemas mecatrónicos

Planning and evaluation of mechatronic projects (15), industrial networks (13), and industrial automation and control (15)

60 of 200 total items

Lenguaje y Comunicación

Reading comprehension of academic, literary and public-interest texts (30 items) and indirect writing, which asks candidates to choose the version of a text that is correct, coherent and well punctuated (30 items)

Preparing for the EGEL Plus Ingeniería Mecatrónica Exam

What You Need to Know

  • Passing score: Each area and each section is reported on the Índice Ceneval (700-1300): 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio, 1150-1300 Sobresaliente. The global result is weighted toward the disciplinary section: Satisfactorio or better there earns at least a Testimonio de Desempeño Satisfactorio, and a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación
  • Assessment: 200 three-option items: 140 disciplinary items (Diseño de sistemas mecatrónicos 50, Implementación de sistemas mecatrónicos 47, Integración de tecnologías para sistemas mecatrónicos 43) and 60 transversal items in Comprensión Lectora and Redacción Indirecta.
  • Time limit: Two sessions of 4.5 hours each on the same day (9 hours in total)
  • Exam / certification fees: MXN 1,885 for the 2026 national Examen desde casa; institutional administrations may charge a different amount Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

EGEL Plus Ingeniería Mecatrónica: Suggested Study Strategy

1Practice design calculations: mechanism mobility, motor torque and reflected inertia, ball-screw drives, op-amp circuits, and state-space and stability analysis.
2Review implementation topics: CNC G-code and FEA convergence, sensors and actuators, ADC and encoder resolution, and embedded C, timers and interrupts.
3Study integration topics: Modbus, CAN and Profinet, PLC scan cycles, PID tuning, safety distances under ISO 13855, and guard interlocking.
4Do not skip project planning and evaluation (15 items): practice critical path scheduling, float, and payback and NPV of automation projects.
5Prepare for Lenguaje y Comunicación by reading academic articles, essays and public notices in Spanish, and by reviewing agreement, punctuation, accentuation and connectors.

Frequently Asked Questions

What is the EGEL Plus Ingeniería Mecatrónica?

The EGEL Plus Ingeniería Mecatrónica (EGEL Plus IMECATRO) is Ceneval's national exit examination for graduates of the Licenciatura en Ingeniería Mecatrónica and related programs. It measures the knowledge and skills considered indispensable at the end of the degree, plus Spanish reading comprehension and indirect writing. Institutions may use the result as a graduation requirement, a titulación option or part of a course grade, under their own rules; a Testimonio does not by itself determine the award of the degree or the cédula profesional.

How many questions are on the official EGEL Plus IMECATRO and how long is it?

The official exam has 200 items: 140 disciplinary items (Diseño de sistemas mecatrónicos 50, Implementación de sistemas mecatrónicos 47, Integración de tecnologías para sistemas mecatrónicos 43) and 60 Lenguaje y Comunicación items (30 reading comprehension and 30 indirect writing). It is given on one day in two sessions of 4.5 hours each (9 hours). About 15% of the items are pilot items that do not count toward the result.

How is the EGEL Plus IMECATRO scored?

Each area and section is reported on the Índice Ceneval from 700 to 1300: 700-999 Aún no satisfactorio, 1000-1149 Satisfactorio and 1150-1300 Sobresaliente. The global result follows a conjunctive rule weighted toward the disciplinary section: Satisfactorio or better in the disciplinary section earns at least a Testimonio de Desempeño Satisfactorio, while a Testimonio de Desempeño Sobresaliente requires Sobresaliente in the disciplinary section and at least Satisfactorio in Lenguaje y Comunicación. Candidates with a global Sobresaliente who take the exam for the first time within one year of finishing the degree are eligible for the Premio Ceneval al Desempeño de Excelencia-EGEL.

Can I use a calculator or formula sheet on the EGEL Plus IMECATRO?

Yes. The official guide allows a non-programmable scientific calculator, which may not be shared between candidates. Ceneval also provides a formulario (formula sheet), handed out on paper or shown on the exam platform depending on the modality, and publishes it on its EGEL portal so you can study with it in advance.

Why is this practice bank in English if the official exam is in Spanish?

The official Ceneval exam is in Spanish. This bank is an independent English-language study adaptation with four-option questions, not an official translation or format simulation. Disciplinary questions and explanations are in English so you can review the engineering content. Language and communication items keep their Spanish passages and options because they test Spanish usage, and their instructions and explanations are in English.

What are the disciplinary areas of EGEL Plus IMECATRO?

The 140 disciplinary items are split into Diseño de sistemas mecatrónicos (50), Implementación de sistemas mecatrónicos (47) and Integración de tecnologías para sistemas mecatrónicos (43). Integration includes planning and evaluation of mechatronic projects (15 items) as well as industrial networks and automation.