Mechanical Engineering MCQs

Page No. 60

In queuing theory, the nature of the waiting situation can be studied and analysed mathematically if_________________?


acomplete details’of items in, waiting line are known

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barrival and waiting times are known and can be grouped to form a waiting line model

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call variables and constants are known and form a linear equation

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dthe laws governing arrivals, service times, and the order in which the arriving units are taken into source are known

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The reasons which are basically responsible for the formation of a queue should be that ___________________?


athe average service rate Hess than the average arrival rate

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boutput rate is linearly proportional to input

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coutput rate is constant and the input varies in a random manner

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dall of the above

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View Answer all of the above

In perpetual inventory control, the material is checked as it reaches its__________________?


aminimum value

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bmaximum value

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caverage value

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dmiddle value

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View Answer minimum value

Bar charts are suitable for_____________________?


aminor works

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bmajor works

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clarge projects

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dall of the above

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View Answer minor works

Pick up the correct step used for scheduling a project by C.P.M.__________________?


aa project is divided into various activities

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brequired time for each activity is established

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csequence of various activities is made according to their importance

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dall of the above

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View Answer all of the above

The disadvantage of product layout is_________________?


ahigh initial investment for the specialized facilities

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bskilled labour to operate machines

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cproduction time is longer, requiring more goods in inventory

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dhigh cost of inspection

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Routing assists engineers in deciding in advance___________________?


athe flow of material in the plant

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bthe methods of proper utilization of manpower

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cthe methods of proper utilization of machines

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dthe layout of factory facilities

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A dummy activity________________?


ais artificially introduced

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bis represented by a dotted line

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cdoes not require any time

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dall of the above

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View Answer all of the above

The difference between the time available to do the job and the time required to do the job, is known as_________________?


aevent

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bfloat

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cduration

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dconstraint

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View Answer float

The critical activity has____________________?


amaximum float

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bminimum float

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czero float,

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daverage float

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View Answer zero float,

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