lathe machine has a constant failure rate and a mean time to failure of 10 years. What is the probability that the lathe machine will fail between 5 and 12 years after being installed?

A company is reviewing its policy of putting each sub-assemblybought in from outside through a detailed inspection process ondelivery. The firm can either inspect or not inspect. The sub-assemblymay either come up to the required quality standard (90 % of thetime), or fail to do so (10 % of the time).It costs K10 to inspect a sub-assembly and another K10 to put rightany defect found at that stage. If the sub-assembly is not inspected Page 4 of and is then found to be faulty at the finished goods stage the cost ofrework is K40.Advise the firm what to do.

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To which of the following geometric tolerance families does perpendicularly belong?     Form Tolerance.     Location tolerance.     Profile tolerance.     Orientation tolerance