## Telephone and Telegraph Engineers' Handbook: A Convenient Reference Book for All Persons Interested in Telephone and Telegraph Systems, Location of Faults, Electricity, Magnetism, Electrical Measurements, and Batteries |

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Telephone and Telegraph Engineers' Handbook International Correspond Schools No preview available - 2019 |

### Common terms and phrases

alternating current ammeter amperes ance angles annealed apparatus armature arrangement battery bell binding posts bridging instrument cable called carbon centimeters central-energy charge closed column condenser conductor connected in series copper COPPER WIRE cord circuit cross cubic current flows decimal point deflection Dewar and Fleming diameter diaphragm difference of potential distance distant end dynamo electrical electrolyte electromotive force electrostatic capacity exchange farads formula galvanometer Gauge given ground hence impedance coils induction coil instrument insulation resistance intercommunicating internal resistance iron jack known resistance length line circuit line wires lines of force located magnetic measured metallic circuit meter method microfarads mile obtained ohms operator phantom circuit plates Platinum plug polarized pole receiver relay repeating coil ringing sheath short-circuited shown in Fig shunt specific gravity station subscriber switchboard tele telegraph Telephone Engineering Course terminal transmitter unit usually voltage voltmeter volts weight Wheatstone bridge winding Zinc

### Popular passages

Page xxiv - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal...

Page xxiv - Cubic Measure 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...

Page 1 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.

Page 256 - The instantaneous value of an alternating current, emf, or potential difference varies continuously from a maximum in one direction through zero to a maximum in the opposite direction, and so on.

Page xxiv - TROY WEIGHT. 24 grains (gr.) 1 pennyweight (pwt.) 20 pennyweights, 1 ounce (oz.) 12 ounces ... 1 pound (Ib.) Troy weight is used in weighing gold, silver, precious stones, etc. APOTHECARIES

Page 2 - MEASURES OF CAPACITY 10 milliliters (ml.) = 1 centiliter (cl.) 10 centiliters = 1 deciliter (dl.) 10 deciliters = 1 liter (1.) 10 liters = 1 dekaliter (Dl.) 10 dekaliters = 1 hektoliter (hi.) 10 hektoliters = 1 kiloliter (kl.) MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams...

Page 3 - The specific gravity of a substance is the ratio of the weight of the substance to the weight of the...

Page 2 - SURFACE too square millimeter's (sq. mm.) = 1 square centimeter (sq. cm.) 100 square centimeters — 1 square decimeter (sq. dm.) 100 square decimeters = 1 square meter (sq. m.) 100 square meters =- 1 square dekameter (sq. Dm.) 100 square dekameters = 1 square hektometer (sq.

Page 55 - ... the centimeter as the unit of length, the gram as the unit of mass, and the second as the unit of time.

Page xxiv - AVOIRDUPOIS WEIGHT 437.5 grains (gr.) =1 ounce oz. 16 ounces =1 pound Ib. 100 pounds = 1 hundredweight . . . .cwt. 20 cwt., or 2,000 Ib =1 ton T.