RRB ALP Engineering Questions: Mechanical Engineering is a vital part of the RRB ALP syllabus, especially for the Technician and ALP posts. Scoring well in this section can significantly boost your overall rank, as questions are often concept-based and application-oriented. This article compiles important Mechanical Engineering questions and a free PDF for the RRB ALP 2026 aspirants.
Download Top RRB ALP Mechanical Engineering Questions PDF
It is recommended to download the top RRB ALP Mechanical Engineering Questions PDF for your practice. The link to download the PDF is shared below:
Practice the RRB ALP Mechanical Engineering Questions (Live)
Given below are the top RRB ALP Mechanical Engineering questions. Attempt them live and check your score as per the real exam marking scheme.
RRB ALP Mechanical Engineering Questions
1. What is the unit of torque in SI system?
2. The function of a flywheel in an engine is to:
3. In a four-stroke engine, the power stroke occurs during:
4. Which of the following is a ferrous metal?
5. The unit of thermal conductivity is:
6. The process of hardening steel by heating and quenching in water or oil is called:
7. The ratio of output to input in a mechanical system is known as:
8. Which gas is commonly used in gas welding?
9. In a belt drive, if the speed ratio is increased, the belt tension:
10. Which of the following is a renewable source of energy?
11. In a reciprocating pump, the delivery is:
12. Which of the following is used for lubrication under high load?
13. The efficiency of a Carnot engine depends on:
14. In a diesel engine, ignition occurs due to:
15. The main purpose of a governor in an engine is:
Quiz Summary
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RRB ALP Mechanical Engineering Questions
16. Which of the following is a non-destructive testing method?
17. The modulus of elasticity is the ratio of:
18. Which type of boiler is used in locomotives?
19. Which of the following is used in refrigeration cycles?
20. In a screw jack, the mechanical advantage is high because:
21. In internal combustion engines, knocking is caused due to:
22. The angle of contact of a belt with a pulley is maximum when:
23. The main component of a hydraulic press is:
24. Which of the following is used as cutting tool material for high-speed machining?
25. In a refrigeration cycle, the expansion valve:
26. The function of a condenser in a steam power plant is to:
27. Which welding process uses a non-consumable electrode?
28. The main advantage of a water tube boiler over a fire tube boiler is:
29. The ratio of ultimate stress to yield stress is called:
30. In a centrifugal pump, the velocity of fluid is converted into:
Quiz Summary
Topic-Wise Breakdown of Mechanical Engineering Questions
In the table below, we have provided the topic-wise breakdown of RRB ALP Engineering Questions in the mechanical section. Check out the details below:
| Topic | Approx. Weightage (%) | Key Areas | Example Question Types |
| Thermodynamics | 15–20 | Laws of thermodynamics, heat engines, cycles, properties of gases | Numerical problems, concept-based MCQs |
| Strength of Materials | 10–15 | Stress, strain, bending moment, torsion, columns | Calculation-based, theory application |
| Fluid Mechanics & Hydraulics | 10–12 | Fluid properties, Bernoulli’s equation, flow through pipes, pumps | Numerical, diagram interpretation |
| Manufacturing & Workshop | 10–12 | Casting, welding, machining processes, CNC basics | Conceptual, process sequence, equipment identification |
| Engineering Mechanics | 8–10 | Force systems, equilibrium, friction, moments | Problem-solving, numerical questions |
| Theory of Machines | 8–10 | Gears, cams, flywheels, balancing | Formula application, diagram-based MCQs |
| Refrigeration & Air Conditioning | 5–8 | Refrigerants, COP, simple cycle problems | Conceptual and numerical |
| Material Science & Metallurgy | 5–8 | Material properties, heat treatment, alloys | Direct theory, application-based |
| Electrical & Electronics Basics (Mechanical Integration) | 2–5 | Motors, transformers, basic circuits | Conceptual understanding for integrated systems |
What should be the ideal preparation strategy for RRB ALP Mechanical Engineering?
The ideal preparation strategy for the mechanical engineering questions would be to understand the concept first and memorise the formulas. We have given below some preparation strategies to face RRB ALP Mechanical Engineering Questions. Check out the details below:
- Concept First, Formula Second: Understand the derivation of key formulas rather than rote memorisation.
- Practice Previous Year Questions: RRB ALP often repeats numerical patterns and conceptual questions.
- Short Notes & Formula Sheets: Maintain a compact reference sheet for thermodynamics, mechanics, and manufacturing processes.
- Mock Tests & Timed Practice: Simulate exam conditions to improve speed and accuracy.
- High-Yield Topic Focus: Thermodynamics, Strength of Materials, and Fluid Mechanics are repeatedly asked; allocate extra time to these areas.
FAQs
The most important topics are Thermodynamics, Strength of Materials, and Fluid Mechanics, together accounting for nearly 40–45% of the technical section. Prioritising these can boost your overall score.
Practice is key. Focus on formulas, derivations, and previous year numerical patterns. Use timed mock tests to improve speed and accuracy. Making a formula sheet helps in quick revision.
Yes. Many questions test conceptual understanding of Thermodynamics, Manufacturing processes, Material Science, and Theory of Machines, often in combination with practical problem-solving.
Solving at least the last 5 – 7 years of RRB ALP Mechanical Engineering questions is recommended. This helps identify frequently asked topics and recurring numerical problems.
Allocate time based on weightage and difficulty. Spend more time on high-weightage topics (Thermodynamics, Strength of Materials) while maintaining daily practice for low-weightage areas like Material Science and Manufacturing. Incorporate mock tests to cover all topics efficiently.
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