Engineering Aptitude and General Knowledge - Applied Awareness
What the paper tests
Engineering aptitude checks whether you can apply school science to practical situations and whether you follow the engineering and technology context of Nepal. Expect unit and measurement sense, simple machines and mechanical advantage, electrical power and energy billing, basic computer and internet terminology, a handful of national infrastructure and institutional facts, plus logical reasoning items - number series, syllogisms, coding–decoding and spatial visualisation.
Core rules
- Units: SI prefixes run kilo (10³), mega (10⁶), giga (10⁹), milli (10⁻³), micro (10⁻⁶). Convert to base units before calculating.
- Mechanical advantage: MA = load/effort; efficiency = (output work/input work) × 100%.
- Electrical energy: power P = VI = I²R; energy in kWh = (watts × hours)/1000, and one kWh is one "unit" on a Nepali electricity bill.
- Efficiency of a machine is always below 100% because friction converts part of the input to heat.
- Logic: in syllogisms, accept only what the premises force; in series, test differences, ratios and alternating patterns separately.
- National context: know the roles of the Nepal Electricity Authority, the Department of Roads, and the Institute of Engineering under Tribhuvan University as the main engineering school.
Worked example
A 100 W bulb burns 5 hours a day for 30 days. Energy = 100 W × 5 h × 30 = 15,000 Wh = 15 kWh. If a unit costs Rs 10, the bill for that bulb is 15 × 10 = Rs 150. Notice the step that decides the answer: dividing by 1000 to move from watt-hours to kilowatt-hours.
Traps that cost marks
- Confusing power (kW) with energy (kWh) - a 1 kW heater run for 1 hour uses 1 kWh.
- Quoting outdated figures for projects or institutions instead of the concept the question actually tests.
- Overthinking general-knowledge items; the intended answer is usually the standard textbook fact.
- Ignoring units in ratio and efficiency questions, which lets a wrong option look plausible.
- In syllogisms, adding real-world knowledge that the premises do not state.