Neco 2017 Physics Question 34
Practice objective / multiple choice question 34 from the 2017 Neco Physics examination.
A gear train consists of three meshing pairs as follows: a driver gear with 20 teeth drives gear A with 40 teeth; gear A is rigidly attached to gear B (30 teeth) which drives gear C (60 teeth); gear C is rigidly attached to gear D (25 teeth) which drives the final driven gear with 50 teeth. Each mesh operates with an efficiency of 95 %. (i) Find the overall speed ratio (output revolutions per input revolution). (ii) Determine the overall mechanical efficiency of the gear train, expressed as a percentage to one decimal place.
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About This Question
This is Neco 2017 Physics Question 34. It is one of the objective questions from the 2017 Neco Physics examination.
Difficulty level: Medium .
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