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


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


call variables and constants are known and form a linear equation


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



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


boutput rate is linearly proportional to input


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


dall of the above


View Answer all of the above

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


aminimum value


bmaximum value


caverage value


dmiddle value


View Answer minimum value

Bar charts are suitable for_____________________?


aminor works


bmajor works


clarge projects


dall of the above


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


brequired time for each activity is established


csequence of various activities is made according to their importance


dall of the above


View Answer all of the above

The disadvantage of product layout is_________________?


ahigh initial investment for the specialized facilities


bskilled labour to operate machines


cproduction time is longer, requiring more goods in inventory


dhigh cost of inspection



Routing assists engineers in deciding in advance___________________?


athe flow of material in the plant


bthe methods of proper utilization of manpower


cthe methods of proper utilization of machines


dthe layout of factory facilities



A dummy activity________________?


ais artificially introduced


bis represented by a dotted line


cdoes not require any time


dall of the above


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


bfloat


cduration


dconstraint


View Answer float

The critical activity has____________________?


amaximum float


bminimum float


czero float,


daverage float


View Answer zero float,

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