i$).....................$ maintenance organization has faster response due to the availability of

maintenance personnel on site when required, compared to the

maintenance

organization.

$($a$)$ centralized, decentralized

$($c$)$ preventive, corrective

$($b$)$ decentralized, centralized

$($d$)$ corrective, preventive

ii$)$ On$-$the$-$job training by the centralized maintenance organization provides

for the

trainees, compared to the decentralized maintenance organization.

$($a$)$ higher diversity

$($c$)$ shorter training periods

$($b$)$ lower diversity

$($d$)$ higher specialization in complex units

iii$)$ Decentralized maintenance organization may incur

than the centralized maintenance

organization, from the perspective of duplication of the maintenance resources.

$($a$)$ higher cost

$($c$)$ lower flexibility

$($b$)$ lower cost

$($d$)$ less equipment

iv$)$ Lubricating a milling machine every $50$ working hours is considered as a

maintenance action.

$($a$)$ usage$-$based preventive

$($c$)$ deferred corrective maintenance

$($b$)$ usage$-$clock preventive

$($d$)$ condition monitoring and inspection

v$)$ The combination of the actions intended to retain an item min, or to restore it to$,$ a state in which it can

perform required function is called

$($a$)$ management

$($c$)$ maintenance

$($b$)$ reliability

$($d$)$ efficiency

vi$)$ Suppose that $4$ tires were bought to replace old tires in a car. Their guaranteed life$-$time is $2$ years. Only

$3$ tires survived till $2$ years. Then, the reliability of the tires equals

$($a$)0\mathrm{.}67$

$($c$)1\mathrm{.}5$

$($b$)0\mathrm{.}75$

$($d$)0\mathrm{.}17$

vii$)$ Corrective maintenance has usually

than the preventive maintenance; due to the

unplanned breakdowns.

$($a$)$ higher cost

$($c$)$ lower cost

$($b$)$ higher scheduling flexibility

$($d$)$ lower number of failures

which is considered as :

repair.

$($a$)$ perfect

$($c$)$ preventive

$($b$)$ imperfect

$($d$)$ minimal

ix$)$ The probability that an item will function properly for a specified time under stated conditions is called

$($a$)$ maintenance

$($c$)$ reliability

$($b$)$ maintenance management

$($d$)$ effectiveness