Join 60,000+ competitive exam aspirants
or with email
Your Cart
Subtotal₹0
Total₹0
Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
Join 60,000+ competitive exam aspirants
which tools are necessary for foundation?
Spirit level
Hammer
Screw driver
and C
Spirit level
Quick Summary: In the installation of electrical equipment or heavy machinery, a spirit level is a critical tool used to ensure the foundation or base is perfectly horizontal (level). This is essential for machines that rely on gravity or precise alignment, such as large rotating electrical machines, to prevent vibration and mechanical fatigue.
In the installation of electrical equipment or heavy machinery, a spirit level is a critical tool used to ensure the foundation or base is perfectly horizontal (level). This is essential for machines that rely on gravity or precise alignment, such as large rotating electrical machines, to prevent vibration and mechanical fatigue.
θ=arctan(Lh) — where θ is the inclination angle, h is the height difference, and L is the base length
A spirit level works based on the principle of a bubble trapped in a liquid-filled vial. The vial is slightly curved, and the bubble always rises to the highest point; when the bubble is centered between two marked lines, the surface beneath the tool is verified as perfectly level relative to the gravitational pull.
Foundation leveling is critical to prevent mechanical resonance in electrical generators/motors.
A spirit level is used for horizontal leveling; a plumb bob is used for vertical alignment.
Improper leveling causes uneven load distribution on bearings, leading to premature failure.
The bubble tube typically contains ethanol or colored liquid to minimize temperature-dependent viscosity changes.
Ensures structural stability
Reduces vibration in heavy electrical equipment
Simple to operate and highly accurate
Sensitive to temperature fluctuations
Requires a flat surface for reliable readings
Cannot measure large angular deviations compared to digital inclinometers
Base frame installation for Transformers and Generators
Switchgear panel mounting
Industrial machinery alignment
Spirit levels come in various types including block levels, frame levels, and electronic levels.
Option B (Hammer) and Option C (Screwdriver) are general mechanical tools, not specialized for precision foundation leveling.
A is correct — The spirit level is the primary tool used to verify that the foundation base is perfectly horizontal during the installation of heavy electrical equipment.
In exams, always look for the 'precision' tool when asked about foundation or installation; while hammers and screwdrivers are assembly tools, levels are validation tools essential for commissioning.