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Estas est\u00e1n formadas por varias poleas de diferente di\u00e1metro montadas sobre el mismo eje.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596162,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"Este mecanismo es el punto de partida de los \u2026\u2026\u2026\u2026\u2026\u2026.. que aprovechan el movimiento giratorio de un eje o de un \u00e1rbol para obtener movimientos lineales alternativos o angulares.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596176,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"La polea \u2026\u2026\u2026\u2026.. puede estar formada por dos poleas solidarias de igual o diferente di\u00e1metro que no mueven ning\u00fan eje motriz. Permiten enlazar dos correas y tensarlas, multiplicar velocidades, modificar la direcci\u00f3n de las fuerzas...","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596164,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"Para que el sistema funcione adecuadamente se deben emplear bielas cuya \u2026\u2026\u2026\u2026\u2026... sea, al menos, 4 veces el radio de giro de la manivela a la que est\u00e1 acoplada.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596168,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"La \u2026\u2026\u2026\u2026\u2026\u2026\u2026.. de los brazos de las diferentes manivelas que componen el cig\u00fce\u00f1al determina la carrera, mientras que su posici\u00f3n determina la secuencia.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596166,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"En las \u2026\u2026\u2026\u2026\u2026\u2026\u2026. se emplean mucho el \"cambio de velocidad\", lo que permite obtener, modificando la posici\u00f3n de la cadena, entre 15 y 21 velocidades diferentes.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596172,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"La \u2026\u2026\u2026\u2026.. de pedal introdujo el sistema palanca-biela-exc\u00e9ntrica que sustituy\u00f3 a sistemas anteriores, siendo posiblemente la primera aplicaci\u00f3n pr\u00e1ctica del sistema biela-manivela.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596174,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"Su utilidad: programadores de lavadoras, carretes de pesca (mecanismo de avance-retroceso del carrete), cortapelos, depiladoras, cerraduras...","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596170,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: Las velocidades de entrada (eje conductor) y salida (eje conducido) est\u00e1n inversamente relacionadas con el n\u00famero de dientes de las ruedas a las que est\u00e1n conectados.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596169,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"Siendo muy apreciado para conseguir movimientos lineales de desplazamiento del cabezal de los taladros sensitivos, movimiento de puertas autom\u00e1ticas de garaje,","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596165,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"La amplitud del movimiento del pist\u00f3n se denomina \u2026\u2026\u2026\u2026\u2026\u2026. y viene determinado por el di\u00e1metro de giro del eje exc\u00e9ntrico al que est\u00e1 conectada la cabeza de la biela.","questionTimeSeconds":"40","questionTimeMinutes":"0","questionImagePath":null,"position":null,"explanation":null,"question_score_id":null,"lang":null,"questionAudioPath":null},{"id":596173,"quiz_id":"29191","answer_id":null,"answerType_id":"0","created_at":"2018-10-19 03:36:41","updated_at":"2018-10-19 03:36:41","questionName":"Accionando la palanca, la u\u00f1eta se retira y permite que el trinquete gire llevado por el resorte. 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