A factory has three work centres for a particular product. The centres are in a series as shown. The raw material passes through the work centres successively to produce the product. The time required at each work centre is shown in bracket. The system efficiency is

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Question

This question was previously asked in

MPPSC AE Mechanical Official Paper (Held on 3 July 2022)

Answer 1

Concept:

The efficiency of the system is,

The cycle time is the maximum of all the times, n = The total number of observations

Calculation:

Referring to the given diagram,

The sum of all times = 1.6+1.4+1.2 = 4.2

The cycle time = max ( 1.6, 1.4, 1.2) = 1.6 s

⇒ η = 0.875

⇒ η = 87.5%

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