Error in discharge measurement, (i) for a V notch dQQ=2.5dHH nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; = 2.5 × 0.5 = 1.25 (ii) for ...

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An error of 0...

Question

An error of 0.5% in the measurement of head in a V-notch causes an error of

0.5% in the discharge

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1.0% in the discharge

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1.25% in the discharge

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1.5% in the discharge

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Solution

The correct option is C 1.25% in the discharge
Error in discharge measurement,
$(i) f o r a V - n o t c h \frac{d Q}{Q} = 2.5 \frac{d H}{H}$
= 2.5 × 0.5 = 1.25%
$(i i) f o r r e c t a n g u l a r n o t c h \frac{d Q}{Q} = 1.5 \frac{d H}{H}$

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An error of 0.5% in the measurement of head in a V-notch causes an error of

The correct option is C 1.25% in the dischargeError in discharge measurement, (i) for a V−notch dQQ=2.5dHH = 2.5 × 0.5 = 1.25% (ii) for rectangular notch dQQ=1.5dHH

The correct option is C 1.25% in the discharge
Error in discharge measurement,
$(i) f o r a V - n o t c h \frac{d Q}{Q} = 2.5 \frac{d H}{H}$
= 2.5 × 0.5 = 1.25%
$(i i) f o r r e c t a n g u l a r n o t c h \frac{d Q}{Q} = 1.5 \frac{d H}{H}$