Neco Model Questions Vol1 2020 Geography Question 2
Practice objective / multiple choice question 2 from the 2020 Neco Model Questions Vol1 Geography examination.
A locomotive can exert a maximum tractive effort of \(150\ \text{kN}\). The train consists of a locomotive weighing \(80\ \text{t}\) and a number of identical wagons each weighing \(20\ \text{t}\). Rolling resistance is \(5\ \text{N}\) per tonne and gradient resistance is \(10\ \text{N}\) per tonne per percent gradient. The train must climb a \(2\%\) gradient. What is the greatest number of wagons that can be attached without exceeding the locomotive's tractive effort?
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About This Question
This is Neco Model Questions Vol1 2020 Geography Question 2. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Geography examination.
Difficulty level: Hard .
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