Nepal · Nepal Engineering Council · licensing · secondary source
Reported as 100 MCQs, 2 hours, 50% to pass — this format is unverified (search summary only).
The 10-chapter syllabus was read from a mirror (https://media.edusanjal.com/u/agricultural-engineering-registration-examination-syllabus_compressed.pdf) because the NEC guideline pages load only with JavaScript. Per-chapter weights are not stated.
Official source: https://www.nec.gov.np/page/general-registration-exam-guidelines
Original questions written to this exam's published syllabus and pattern. Not past papers.
1. Two chains pull on a tree stump from one ring with forces of 6 kN and 4 kN; the angle between the chains is 120 degrees. What is the magnitude of the resultant pull on the stump?
D. 5.29 kN
R = sqrt(P^2 + Q^2 + 2PQ cos theta) = sqrt(36 + 16 + 2 x 6 x 4 x cos 120) = sqrt(28) = 5.29 kN. Using +cos 60 instead of cos 120 gives 8.72 kN; treating the chains as perpendicular gives 7.21 kN; adding arithmetically gives 10 kN, which is only right for chains pulling in the same direction.
Engineering Mechanics (Statics & Dynamics) · Force systems and resultants
2. On the stress–strain curve of mild steel, the point beyond which the specimen no longer returns to its original length when unloaded is called the:
D. Elastic limit
The elastic limit marks the end of fully recoverable deformation; loading past it leaves a permanent set. It lies just above the limit of proportionality. The yield points come later, where large plastic strain occurs at nearly constant load, and the ultimate stress is the peak of the engineering curve.
Strength of Materials · Stress, strain and Hooke's law
3. Loess is parent material deposited mainly by:
D. Wind
Loess is aeolian (wind-blown) silt. River deposits are alluvium, glacial deposits are till or outwash, and material moved downslope by gravity is colluvium.
Soil Science for Engineers · Soil formation and profile
4. In the South Asian cropping calendar, which group of crops is typically sown in October–November and harvested in March–April?
A. Rabi crops such as wheat, chickpea and mustard
Rabi crops are the post-monsoon winter crops: sown in October–November, harvested in March–April. Rice, maize and cotton are kharif (monsoon) crops; watermelon and summer mung bean are zaid crops of the irrigated summer gap; 'ratoon' describes regrowth from stubble, not a season.
Crop Production & Protection for Engineers · Crop classification and seasons
5. As the temperature rises, how do the viscosities of water and of air change?
B. Water's viscosity falls; air's viscosity rises
In liquids viscosity comes mainly from intermolecular cohesion, which weakens as temperature rises. In gases it comes from molecular momentum exchange, which increases with temperature. So the two trends are opposite.
Fluid Mechanics & Open Channel Hydraulics · Properties of fluids
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