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Reduced Level given Height of Instrument Formula

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Reduced level is the vertical distance between a survey point and the adopted level datum. Check FAQs

RL = HI - BS

RL - Reduced Level?HI - Height of Instrument?BS - Back Sight?

Reduced Level given Height of Instrument Example

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Here is how the Reduced Level given Height of Instrument equation looks like with Values.

Here is how the Reduced Level given Height of Instrument equation looks like with Units.

Here is how the Reduced Level given Height of Instrument equation looks like.

45 = 65 - 20

45m = 65m - 20m

45 = 65 - 20

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Reduced Level given Height of Instrument Solution

Follow our step by step solution on how to calculate Reduced Level given Height of Instrument?

FIRST Step Consider the formula

RL = HI - BS

Next Step Substitute values of Variables

∴

RL = 65m - 20m

Next Step Prepare to Evaluate

∴

RL = 65 - 20

LAST Step Evaluate

∴

RL = 45m

Reduced Level given Height of Instrument Formula Elements

Variables

Reduced Level

Reduced level is the vertical distance between a survey point and the adopted level datum.

Symbol: RL

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Reduced Level

Height of Instrument

Height of instrument is the vertical distance from the surface of earth to the collimation plane. It is also called as height of plane of collimation.

Symbol: HI

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Height of Instrument

Back Sight

Back Sight is the sight or reading taken towards the back or towards a known elevation.

Symbol: BS

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Back Sight

Other formulas in Levelling category

Go Distance between Two points under Curvature and Refraction

D = {(2 \cdot R \cdot c + (c^{2}))}^{\frac{1}{2}}

Go Distance for small errors under Curvature and Refraction

D = \sqrt{2 \cdot R \cdot c}

Go Error Due to Curvature Effect

c = \frac{D^{2}}{2 \cdot R}

Go Combined Error Due to Curvature and Refraction

c_r = 0.0673 \cdot D^{2}

How to Evaluate Reduced Level given Height of Instrument?

Reduced Level given Height of Instrument evaluator uses Reduced Level = Height of Instrument-Back Sight to evaluate the Reduced Level, The Reduced Level given Height of Instrument is defined as the vertical distance between a survey point and the adopted level datum. A bench mark (BM) is the term given to a definite, permanent accessible point of known height above a datum to which the height of other points can be referred. Reduced Level is denoted by RL symbol.

How to evaluate Reduced Level given Height of Instrument using this online evaluator? To use this online evaluator for Reduced Level given Height of Instrument, enter Height of Instrument (HI) & Back Sight (BS) and hit the calculate button.

FAQs on Reduced Level given Height of Instrument

What is the formula to find Reduced Level given Height of Instrument?

The formula of Reduced Level given Height of Instrument is expressed as Reduced Level = Height of Instrument-Back Sight. Here is an example- 45 = 65-20.

How to calculate Reduced Level given Height of Instrument?

With Height of Instrument (HI) & Back Sight (BS) we can find Reduced Level given Height of Instrument using the formula - Reduced Level = Height of Instrument-Back Sight.

Can the Reduced Level given Height of Instrument be negative?

Yes, the Reduced Level given Height of Instrument, measured in Length can be negative.

Which unit is used to measure Reduced Level given Height of Instrument?

Reduced Level given Height of Instrument is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Reduced Level given Height of Instrument can be measured.

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Reduced Level given Height of Instrument Formula

Reduced Level given Height of Instrument Example

Reduced Level given Height of Instrument Solution

Reduced Level given Height of Instrument Formula Elements

Other formulas in Levelling category

How to Evaluate Reduced Level given Height of Instrument?

FAQs on Reduced Level given Height of Instrument

Variable Name