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71.

The assumption in PERT is

A.	A project is always behind schedule	B.	Cost of project is always more than the estimated cost
C.	A project can be sub-divided into a set of predictable, independent activities	D.	Activities are complex in nature and time taken by them are indeterminate
E.	None of the above

72.

PERT has the following time estimates:

73.

An event is indicated on the network by

A.	A straight line	B.	A number enclosed in a circle or a square
C.	A straight line with circles at the ends	D.	A dotted line
E.	An arrow

74.

Pessimistic time is

A.	The maximum time which an activity might require	B.	The average time required for a job
C.	The time which has the highest probability of occurrence associated with it	D.	The minimum time in which an activity can possibly be accomplished
E.	The earliest possible time that an event can be reached or an activity completed.

75.

Which one of the following represents an event

A.	Curing of concrete	B.	Concrete cured
C.	Plastering of the walls	D.	Fixing of windows, doors, ventilators
E.	Fixing of electrical wiring.

76.

Safety guards on machines should be

A.	always in position	B.	Put in position while using machine
C.	Used if operator desires	D.	Never used
E.	Used if time permits

77.

The financial position of a company is considered to be sound if

A.	Sufficient funds are available under reserve and surplus	B.	Company has declared good dividends in the past
C.	Sales are increasing	D.	Gross profit is reasonable
E.	The company has no loans outstanding

78.

In retractional flow system in plant layout

A.	Material is transferred from one machine to another without having to move again along the same path	B.	The flow is repeated for completing non-consecutive operations
C.	Materials fed at one end and components leave at the other end	D.	The feeding to and ejection from the line is at the same end
E.	The flow of material is in zig-zag path

79.

The variance of a statistical distribution indicates

A.	The average value of the distribution	B.	The spread of the distribution
C.	The value of the variate with the largest frequency	D.	The difference between the extreme values in the distribution
E.	None of the above

80.

Trade will occur when

A.	Personnel values are different	B.	Middle-men can profit by making trade
C.	The exchange leads to more preferred situation for the traders	D.	There is enough disparity between the consumption-substitution ratios to cover the costs of trades
E.	All of the above