1. 1.Cov lus nug: Tsis tuaj yeem qhib thiab overload

Teb: A: Xyuas seb qhov chaw nres tsheb ceev puas qhib tag nrho.B.Yog tias nws tsis tuaj yeem qhib, xyuas seb lub fuse hauv lub thawv hluav taws xob puas puas lawm.C.Yog tias nws yog overloaded, qhib lub thawv hluav taws xob thiab nias lub pob liab ntawm lub ntsuas kub.Yog tias koj nias lub teeb liab kom tua, tig lub pob tam sim no ntawm lub ntsuas kub kom tsim nyog.

2.Lus Nug: Tsis huv

Teb: A.Kuaj seb cov txhuam hniav qhib.B.Yog qhib dej twj tso kua mis C.Txawm hais tias cov txhuam hniav tuaj yeem txhuam lub khob D.Puas cov txhuam hniav puas hnav?

3.Lus Nug: Cov dej ntawm lub khob tsis qhuav

Teb: A.Kuaj seb puas yog daim txhuam cev absorbent hloov thiab nias kom nruj.B.Yog lub pob liab liab kaw.C.Puas yog kiv cua ntawm thiab khiav mus tom ntej?D. Yog lub cua sov rau.E. Puas yog daim txhuam cev absorbent puas?F. Puas yog lub tank dej oily?

4.Ntiaj teb: hluav taws xob to phenomenon

Teb: A.Kuaj seb puas yog av xaim.B. Qhib txhua lub hau npog lub cev kom pom tias muaj qhov siab ntawm txoj kab.C.Kuaj seb cov xov hlau hauv lub khib nyiab puas puas lawm.

5.Ntu: Tsis txaus dej siab

Teb: A.Kuaj seb puas muaj dej txaus hauv lub tank dej.B.Kuaj xyuas seb lub twj tso kua dej tsis muaj dab tsi.C.Puas yog lub qhov hluav taws xob tso dej txhaws?

6.Lus Nug: Cov kis tau tus mob roj hmab stick tsis tig

Teb: A.Yog tias tag nrho tsis tig, xyuas seb lub cav puas tau qhib, thiab xyuas seb cov saw hlau puas raug kaw.B.Yog tias qee qhov tsis tig, xyuas seb cov ntsia hlau sprocket puas raug kaw, lossis cov hlua sab saum toj ntawm cov hlua sab saum toj yog xoob.