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close this bookA Training Manual in Conducting a Workshop in the Design, Construction, Operation, Maintenance and Repair of Hydrams (Peace Corps, 1981, 216 p.)
View the document(introduction...)
View the documentForeword
View the documentIntroduction
Open this folder and view contentsGuidelines for users
Open this folder and view contentsSession 1: Introduction to training (1½ hours)
Open this folder and view contentsSession 2: Introduction to hydrams (3½ hours)
Open this folder and view contentsSession 3: Water measurement techniques (3 hours)
Open this folder and view contentsSession 4: Measuring heads and distance (2-4 hours)
Open this folder and view contentsSession 5: Review exercise #1 (2 hours)
Open this folder and view contentsSession 6: Hydram theory (2-3 hour)
Open this folder and view contentsSession 7: Basic plumbing tools and materials (1-1½ hours)
Open this folder and view contentsSession 8: Hydram construction - Pipefitting (4 - 6 hours)
Open this folder and view contentsSession 9: Hydram design theory and parameters (2 hours)
Open this folder and view contentsSession 10: Hydram construction - concrete (18 hours over a 7 day period)
Open this folder and view contentsSession 11: Hydram component design criteria (1-1½ hours)
Open this folder and view contentsSession 12: Hydram selection (1½ - 3 hours)
Open this folder and view contentsSession 13: Inter-relationships within the hydram (11-15 hours)
Open this folder and view contentsSession 14: Repair and maintenance (2-4 hours)
Open this folder and view contentsSession 15: Review exercise #2 (2 hours)
Open this folder and view contentsSession 16: Use of multiple rams (1½ hours)
Open this folder and view contentsSession 17: Site development (2 hours)
Open this folder and view contentsSession 18: Hydram system site selection (2-4 hours)
View the documentSession 19: Project planning (2-4 hours)
View the documentSession 20: Wrap up and evaluation (2-4 hours)
View the documentGlossary of terms
View the documentEnglish-metric units conversion table
View the documentReferences
Open this folder and view contentsAttachments

English-metric units conversion table



Equals, in Metric*

Physical Quantity

This in "English" Units

Spelled out

Symbolic

Reciprocal

DISTANCE

1 inch

2.54 centimeter

2.54 cm

0.3937


1 foot

0.3048 meter

0.3048 m

3.281


1 yard

0.9144 meter

0.9144 m

1.094


1 mile

1.609 kilometer

1.609 km

0.6215

AREA

1 square inch

6.452 square centimeter

6.452 cm²

0.155


1 square foot

0.0929 square meter or

0.0929 m2

10.76



929 square centimeters

929 cm2

0.001076


1 square yard

0.836 square meter

0.836 m2

1.196


1 acre

4,047 square meters or

4.047 m2

0.000247



0.4047 hectare

0.4047 h

2.47


1 square mile

2.590 square kilometers or 259.0 hectares

259.0 h

0.00386

VOLUME

1 cubic inch

16.39 cubic centimeters

16.39 cm3

0.0610


1 pint (liquid)

473.2 cubic centimeters

473.2 cm3

0.002113


1 quart

946.4 cubic centimeters

946.4 cm3

0.001057



or 0.9464 liter

0.946 1

1.057


1 gallon

3.785 liters

3.78.5 1

0.2642


1 cubic foot

0.0283 cubic meter

0.283 cm3

35.3


1 cubic yard

0.765 cubic meter

0.765 cm3

1.308


1 acre foot

0.1233 hectare meter

0.1233 h m

8.11

VELOCITY

1 foot per hour,





minute or second

0.3048 meter/hour, minute, or second


3.281


1 mile per hour

0.1170 meter per second

0.4470 m/s

2.237


1 knot

.0.5145 meter per second

0.5145 m/s

1.944

* Multiply quantity known in British units by this number to get metric equivalent.
† Multiply quantity known in metric units by this number to act British equivalent



Equals, in Metric*

Physical Quantity

This in "English" Units

Spelled out

Symbolic

Reciprocal

ENERGY (OR WORK)

1 watt second

1.000 joule = 1.000





newton meter

1.000 J

1.000


1 foot pound

1.356 joule

1.356 J

0.7375


1 Btu

1.055 kilojoule

1.055 kJ

0.948


1 wale hour

3.60 kilojoules

3.60 kJ

0.2778


1 horsepower-hour

2.684 megajoules

2.684 MJ

0.3726


1 kilowatt hour

3.60 megajoules

3.60 MJ

0.2778

POWER

1 horsepower

745.7 watts or O.7457 kilo-

745.7 W

0.00134



watt

0.7457 kW

1.341


1 joule per second

1.000 watt

1.000 W

1.000


1 Btu per hour

0.293 joule per second

0.293 J/s

3.41

TEMPERATURE

1 degree

519 degree Celsius (Centi

5/9 X (TF-32)°C

1.8 degree


Fahrenheit

grade) for each Fahrenheit


Fahrenheit



degree above or below 32°F


for each Celsius degree plus 3

SPECIAL COMPOUND UNITS

1 Btu per cubic foot

37.30 joules per liter

37.30 J/1

0.0268

1 Btu per pound of mass

2.328 joules per gram


2.328 J/g

0.4296

1 Btu per square fool per hour

3.158 joules per square meter

3.158 J/m²

0.3167


1000 gallons per acre

0.0935 centimeters depth


10.70


1 pound of mass per cubic foot

16.02 grams per liter

16.02 g/l

0.0624


MASS

1 ounce

28.35 grams

28.35 g

0.03527


1 pound

453.6 grams

453.6 6

0 002205



or 0.4536 kilogram

0.4536 kg

2.205


1 ton(short, 2000 pounds)

0.907 megagram

0.907 Mg

1.102



or 0.907 metric ton

0.907 L

1.102



or 0.907 tone

0.907 t

1.102

TORQUE

1 inch pound

0.1130 meter newton

0.1130 m-N

8.851

PRESSURE

1 pound per square

47.88 newtons per square

47.88 N/m²

0.02089


foot

meter




1 pound per square

6.895 kilonewtons per

6.895 kN/m²

0.11240


inch

square meter




1 millimeter of

133.3 newtons per square

133.3 N/m²

0.0075


mercury

meter




1 foot of water

2.989 kilonewtons per

2.989 KN/nm²

0.3346



square meter




1 atmosphere

0.1013 meganewton per

0.1013 MN/m'

9.87



square meter



Flow

1 gallon per day

0.04381 milliliters per

0.04381 ml/s

22.824



second




1 gallon per minute

63.08 milliliter per second

63.08 ml/s

0.01585


1 cubic foot per minute

0.4719 liter per second

0.4719 1/s

2.119


1 cubic foot per second

28.32 liters per second

28.32 Us

0.0353

FORCE

1 ounce

0.2780 newton

0.2780 N

3.597


1 pound

4.448 newtons

4.448 N

0.2248


1 ton (2000 pounds}

8.897 kilonewtons

8.897 kN 0.11240


* Multiply quantity known in British units by this number to get metric equivalent.
† Multiply quantity known in metric units by this number to act British equivalent