
ROV - PVLL - El. tok

Quiz
•
Other
•
1st Grade
•
Hard
Gregor Gojkošek
Used 1+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako se meri električni tok?
V volti (V)
V amperih (A)
V ohmih (Ω)
V kilovatih (kW)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaj je električna napetost?
Merilo dolžine obloka
Razlika v električnem potencialu med dvema točkama
Jakost električnega toka
Količina proizvedene toplote
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako lahko reguliramo dolžino obloka med varjenjem?
S spremembo debeline kovine
S spreminjanjem vrste elektrode
Z upravljanjem električne napetosti
Z manipulacijo s temperaturo okolice
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaj omogoča ustrezen nadzor električnega toka in napetosti pri varjenju?
Povečanje debeline kovine
Zagotavljanje močnega zvara
Zmanjšanje jakosti obloka
Povečanje temperature okolice
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zakaj je razmerje med električnim tokom in napetostjo pomembno pri varjenju?
Vpliva na barvo končnega zvara
Vpliva na hitrost taljenja elektrode
Regulira dolžino obloka in količino proizvedene toplote
Vpliva na strukturo okolice zvara
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaj meri električni tok in v katerih enotah se izraža?
Meri razliko v električnem potencialu, izraženo v voltih (V)
Meri količino proizvedene toplote, izraženo v wattih (W)
Meri pretok elektronov, izražen v amperih (A)
Meri jakost obloka, izraženo v ohmih (Ω)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaj lahko neustrezen nadzor električnega toka in napetosti povzroči pri varjenju?
Prehitro taljenje elektrode
Slabo strjen zvar
Prekomerno hlajenje okolice
Povečanje debeline kovine
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