Engineering Exam Questions

Engineering Exam Questions Overview

Prepare effectively for your engineering exams with our comprehensive collection of Engineering exam questions, previous year papers, and model question papers. Covering branches like Mechanical, Civil, Electrical, Electronics, and Computer Science, these resources help you practice, strengthen your concepts, and boost your chances of success. Access free downloadable question papers and start your preparation today.

Engineering Exam Questions – 100 Questions with Answers

Mechanical Engineering (1–20)

1. Q: What is the function of a governor in an engine?
   A: To regulate the engine speed by controlling fuel supply.
2. Q: Define specific fuel consumption.
   A: The amount of fuel required to produce a unit of power for a unit of time.
3. Q: What is the difference between heat and temperature?
   A: Heat is energy transfer due to temperature difference; temperature is a measure of thermal energy in a system.
4. Q: Explain the working principle of a four-stroke engine.
   A: It completes the cycle in four strokes: intake, compression, power, and exhaust.
5. Q: What is the purpose of a flywheel?
   A: To smooth out fluctuations in engine speed by storing rotational energy.
6. Q: Define mechanical efficiency.
   A: The ratio of output work to input work, expressed as a percentage.
7. Q: What is the function of a clutch?
   A: To connect and disconnect the engine from the transmission system.
8. Q: What are the types of gears?
   A: Spur, helical, bevel, worm, and rack and pinion gears.
9. Q: Define stress and strain.
   A: Stress is force per unit area; strain is deformation per unit length.
10. Q: What is thermal conductivity?
    A: The rate at which heat passes through a material.
11. Q: Explain the principle of a simple pendulum.
    A: It oscillates back and forth under the influence of gravity, with time period dependent on its length.
12. Q: What is a belt drive?
    A: A system for transmitting power between rotating shafts using a belt.
13. Q: What is the difference between laminar and turbulent flow?
    A: Laminar flow is smooth and orderly; turbulent flow is chaotic and irregular.
14. Q: Define refrigeration.
    A: The process of removing heat from a space or substance to lower its temperature.
15. Q: What is a compressor?
    A: A machine that increases the pressure of a gas by reducing its volume.
16. Q: Explain the working of a steam turbine.
    A: Steam expands and rotates the turbine blades, converting thermal energy into mechanical energy.
17. Q: What is the difference between an open and closed system in thermodynamics?
    A: An open system exchanges mass and energy; a closed system exchanges only energy.
18. Q: Define entropy.
    A: A measure of disorder or randomness in a system.
19. Q: What is the purpose of a radiator in an engine?
    A: To remove excess heat from the engine coolant.
20. Q: What is a reciprocating pump?
    A: A pump that uses a piston or plunger to move fluid through a cylinder.

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Civil Engineering (21–40)

21. Q: What is the modulus of elasticity?
    A: Ratio of stress to strain, measuring material stiffness.
22. Q: Define shear force and bending moment.
    A: Shear force resists sliding; bending moment resists bending in beams.
23. Q: What is the purpose of a retaining wall?
    A: To resist lateral soil pressure and prevent erosion.
24. Q: Define factor of safety.
    A: Ratio of maximum load a structure can withstand to intended load.
25. Q: Explain a cantilever beam.
    A: A beam fixed at one end and free at the other.
26. Q: What is concrete slump test?
    A: A test to measure the consistency of fresh concrete.
27. Q: Define water-cement ratio.
    A: The ratio of water to cement by weight in a concrete mix.
28. Q: What is a pile foundation?
    A: Deep foundation element transferring loads to stronger soil layers.
29. Q: Explain the term ‘deflection’ in beams.
    A: The displacement of a beam under load.
30. Q: What is the difference between live load and dead load?
    A: Live load is variable (e.g., people, furniture); dead load is permanent (e.g., structure weight).
31. Q: Define bearing capacity of soil.
    A: Maximum load per unit area the soil can safely support.
32. Q: What is a shear wall?
    A: A structural wall resisting lateral forces like wind or earthquake.
33. Q: What is the difference between RCC and PSC?
    A: RCC is reinforced concrete; PSC is prestressed concrete.
34. Q: Define moment of inertia.
    A: A measure of an object’s resistance to bending or rotation.
35. Q: What is the purpose of expansion joints?
    A: To allow for thermal expansion and contraction in structures.
36. Q: Explain soil compaction.
    A: Process of increasing soil density to improve strength and stability.
37. Q: What is the difference between Type I and Type II cement?
    A: Type I is ordinary; Type II is moderate sulfate resistant cement.
38. Q: Define slump in concrete.
    A: Measurement of concrete workability.
39. Q: What is the use of a plumb line?
    A: To determine vertical alignment.
40. Q: Define truss.
    A: A framework of triangles to support loads efficiently.
41. More Civil Engineering Exam Questions- Study Now 

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Electrical Engineering (41–60)

41. Q: What is Ohm’s Law?
    A: Voltage = Current × Resistance.
42. Q: Define capacitance.
    A: Ability to store charge per unit voltage.
43. Q: Function of a transformer?
    A: Change AC voltage level.
44. Q: Difference between AC and DC?
    A: AC reverses direction periodically; DC flows in one direction.
45. Q: Explain a DC motor.
    A: Converts electrical energy to mechanical energy.
46. Q: Define series and parallel circuits.
    A: Series: components in line; Parallel: components across common points.
47. Q: What is a circuit breaker?
    A: A protective device to interrupt overcurrent.
48. Q: What is power factor?
    A: Ratio of real power to apparent power in AC circuits.
49. Q: Define inductance.
    A: Property of a conductor to oppose change in current.
50. Q: What is a relay?
    A: Electromechanical switch operated by current.
51. Q: What is a fuse?
    A: Protective device that melts on excessive current.
52. Q: Define load shedding.
    A: Temporary suspension of electricity to reduce system load.
53. Q: What is a three-phase system?
    A: AC system with three voltages out of phase by 120°.
54. Q: Define earthing.
    A: Connecting electrical equipment to the ground for safety.
55. Q: What is a synchronous motor?
    A: Motor that runs at synchronous speed with AC supply.
56. Q: Define voltage regulation.
    A: Change in voltage from no-load to full-load expressed as a percentage.
57. Q: What is a rectifier?
    A: Converts AC to DC.
58. Q: Difference between step-up and step-down transformer?
    A: Step-up increases voltage; step-down decreases voltage.
59. Q: What is insulation resistance?
    A: Resistance offered by insulation to current leakage.
60. Q: Explain a generator.
    A: Converts mechanical energy into electrical energy.
61. Electrical Engineering Exam Questions- Study Now 

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Electronics & Instrumentation Engineering (61–80)

61. Q: What is a diode?
    A: Allows current in one direction only.
62. Q: Define transistor.
    A: Amplifies or switches signals.
63. Q: What is an operational amplifier?
    A: High-gain voltage amplifier with differential input.
64. Q: What is bandwidth?
    A: Frequency range a system can transmit.
65. Q: Purpose of a capacitor?
    A: Store and release energy, filter signals.
66. Q: Explain logic gates.
    A: Perform basic boolean operations like AND, OR, NOT.
67. Q: Difference between analog and digital signals?
    A: Analog is continuous; digital is discrete.
68. Q: What is an oscillator?
    A: Produces repetitive signals like sine, square waves.
69. Q: Define microcontroller.
    A: Small computer on a single chip.
70. Q: Function of a sensor?
    A: Detects physical parameters and converts to electrical signals.
71. Q: What is a rectifier?
    A: Converts AC to DC.
72. Q: Explain ADC and DAC.
    A: ADC: analog to digital; DAC: digital to analog conversion.
73. Q: What is a voltage regulator?
    A: Maintains constant output voltage.
74. Q: Define PWM.
    A: Pulse Width Modulation – controlling power using pulses.
75. Q: Purpose of an op-amp comparator.
    A: Compares two voltages and outputs a logic signal.
76. Q: What is a flip-flop?
    A: A basic memory element in digital electronics.
77. Q: Define EMI.
    A: Electromagnetic interference that disturbs circuits.
78. Q: What is a multiplexer?
    A: Selects one input from multiple and forwards it to output.
79. Q: Explain demultiplexer.
    A: Distributes single input to one of many outputs.
80. Q: What is a voltage divider?
    A: Circuit that divides voltage proportionally using resistors.
81. Mechanical Engineering Exam Questions- Study Now 

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Computer Science & IT Engineering (81–100)

81. Q: Define algorithm.
    A: Step-by-step procedure to solve a problem.
82. Q: What is a data structure?
    A: Way of organizing and storing data efficiently.
83. Q: Difference between compiler and interpreter?
    A: Compiler translates entire code; interpreter translates line by line.
84. Q: Explain object-oriented programming.
    A: Programming using objects that contain data and methods.
85. Q: What is a database management system?
    A: Software to manage, store, and retrieve data.
86. Q: Define stack and queue.
    A: Stack: LIFO; Queue: FIFO data structures.
87. Q: What is recursion?
    A: A function calling itself to solve a problem.
88. Q: Explain operating system.
    A: Software managing hardware and software resources.
89. Q: What is a file system?
    A: Organizes and stores files on storage devices.
90. Q: Define networking.
    A: Connecting computers to share data and resources.
91. Q: What is TCP/IP?
    A: Protocol suite for communication over the internet.
92. Q: Difference between HTTP and HTTPS?
    A: HTTPS is secure with encryption; HTTP is not.
93. Q: What is a firewall?
    A: Security system that controls incoming and outgoing network traffic.
94. Q: Define cloud computing.
    A: Delivering computing services over the internet.
95. Q: What is virtualization?
    A: Creating virtual versions of hardware or OS.
96. Q: Explain machine learning.
    A: Algorithms that allow computers to learn from data.
97. Q: What is Big Data?
    A: Large and complex datasets that traditional tools cannot handle.
98. Q: Define API.
    A: Interface for software applications to communicate.
99. Q: What is cybersecurity?
    A: Protecting systems and data from cyber threats.
100. Q: What is a hash function?
     A: Converts data into a fixed-size value, used in encryption and data integrity.

Other Exams Previous Question Papers- Check Now

Other Engineering Branches Question Papers

Following Branches Exam Question Papers also abailable at https://rightjobalert.com/previous-question-papers/

Core/Traditional Engineering Branches

1. Civil Engineering – Infrastructure, construction, structural design
2. Mechanical Engineering – Machines, thermal systems, manufacturing
3. Electrical Engineering – Power systems, circuits, electrical machines
4. Electronics & Communication Engineering – Communication systems, electronics, signal processing
5. Computer Science & Engineering (CSE) – Software, algorithms, AI, networking
6. Chemical Engineering – Process engineering, chemical plants, materials
7. Aerospace/Aeronautical Engineering – Aircraft, spacecraft, propulsion systems
8. Automobile/Automotive Engineering – Vehicle design, engines, transportation systems
9. Instrumentation & Control Engineering – Sensors, control systems, automation

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Modern & Interdisciplinary Engineering Branches

10. Biotechnology Engineering – Genetic engineering, bioinformatics, pharmaceuticals
11. Environmental Engineering – Pollution control, waste management, sustainable design
12. Industrial & Production Engineering – Manufacturing, process optimization, operations
13. Material Science & Engineering – Nanomaterials, composites, metallurgy
14. Mechatronics Engineering – Robotics, automation, mechanical-electronics integration
15. Petroleum Engineering – Oil and gas exploration, drilling, refining
16. Mining Engineering – Mineral extraction, mining safety, geology
17. Marine/ Naval Engineering – Ship design, offshore structures, marine systems
18. Textile Engineering – Fabric production, textile machinery, fiber science
19. Food Technology/Engineering – Food processing, preservation, quality control
20. Paper & Pulp Engineering – Paper manufacturing, chemical processing

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Specialized & Emerging Engineering Fields

21. Robotics Engineering – Industrial and service robots
22. Artificial Intelligence & Machine Learning Engineering – AI systems, ML algorithms
23. Cybersecurity Engineering – Network security, ethical hacking, information security
24. Nanotechnology Engineering – Nano-devices, materials, applications
25. Renewable Energy Engineering – Solar, wind, hydroelectric systems
26. Railway/Transportation Engineering – Track design, signaling, logistics
27. Structural Engineering – Design and analysis of buildings, bridges, and dams
28. Construction Engineering – Project management, building technology
29. Geotechnical Engineering – Soil mechanics, foundation design
30. Water Resources Engineering – Hydraulics, irrigation, water treatment