$17.$ Which element level could be maintained during production, operation, service and decommissiong?

$($a$)$ Hardware part

$($b$)$ System

$($c$)$ Item

$($d$)$ Software unit

$18.$ Which are examples of a required safety culture?

$($a$)$ There is evidence that the safety plan is confirmed

$($b$)$ There is evidence that management reads only when the customer complains

$($c$)$ There is evidence that cost and schedule take precedence

$($d$)$ There is evidence that the assigned resources have the correct competence to complete the work

$19.$ Which are typical hazardous events?

$($a$)$ An advertent deployment of brakes during driving

$($b$)$ A lack of deployment of an airbag during a crash

$($c$)$ An advertent acceleration during driving

$($d$)$ A malfunction of a hardware part during night driving