Yokhala ndi gulu lowongolera lanzeru, kuyatsa kwa batani limodzi, kusintha kwa kuthamanga kwa magazi, komanso kudzaza kwambiri, kutentha kwambiri, komanso chitetezo chokwanira cha kuthamanga kwa mafuta, zomwe zimathandiza ogwira ntchito m'migodi ndi malo omanga kuti aphunzire mwachangu ndikugwiritsa ntchito makinawo, kuchepetsa chiopsezo chogwiritsa ntchito molakwika.
Chimango cholemera + chitsulo chokhuthala + matayala osatha, osagwedezeka ndi dzimbiri, oyenera misewu ya miyala ndi malo omangira okhala ndi mikwingwirima, osawonongeka mosavuta panthawi yogwira ntchito panja kwa nthawi yayitali, komanso okhala ndi nthawi yayitali yogwirira ntchito.