City Guilds Model Questions Vol1 2024 Engineering Question 7
Practice objective / multiple choice question 7 from the 2024 City Guilds Model Questions Vol1 Engineering examination.
An irregular metal block is measured by water displacement. When fully immersed, the water level rises by 250 mL. The block's length and width are 5 cm and 8 cm respectively, so its height can be found from the displaced volume. The metal's density at 20 °C is 7.85 g cm⁻³ and its linear expansion coefficient is \(12\times10^{-6}\ \text{°C}^{-1}\). The laboratory temperature during measurement is 30 °C. The metal is sold at ₦150 per kilogram for the first 2 kg and ₦120 per kilogram for any additional weight. A tax of 12 % is applied to the net amount. Calculate the total amount payable (in naira) for the block.
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About This Question
This is City Guilds Model Questions Vol1 2024 Engineering Question 7. It is one of the objective questions from the 2024 City Guilds Model Questions Vol1 Engineering examination.
Difficulty level: Hard .
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