NETA 3 PRACTICE TEST GUIDE
1. IDMT protect transformers from
: Overloads and external short circuits
2. Fuse holders for cartridge fuses should be designed to prevent using a ______ lower or
a _____higher than intended class
: Voltage, current
3. Class R fuses may be inserted in fuse holders of a ____ design
: Class H
4. Air circuit breaker arcing contacts are designed to make ______ and break _____ the
main contacts open
: Before after
5. Primary protection for internal transformer faults
: Differential
6. Amps cities in NEC table310.15B16 are based on ambient temperature of
: 86F
7. Delta T of 10C between component and air needs
: Warrants investigation
, NETA 3 PRACTICE TEST GUIDE
8. Motor overload protection is designed to break short circuit or ground fault current true
or false
: False
9. Which standard addresses equipment grounding
: NFPA 70
10. Which SCADA communication is only appropriate for short distances
: CAT 6
11. What is the cell voltage deviation that indicates need for equalizing charge.
_____ volts
: 0.05
12. A 21 device measures
: Volts and amps
13. If the person who installed LOTO cannot remove it, another person may under
direction of _____ provided the ____ strictly adhered to standard procedure
: Employer employer
1. IDMT protect transformers from
: Overloads and external short circuits
2. Fuse holders for cartridge fuses should be designed to prevent using a ______ lower or
a _____higher than intended class
: Voltage, current
3. Class R fuses may be inserted in fuse holders of a ____ design
: Class H
4. Air circuit breaker arcing contacts are designed to make ______ and break _____ the
main contacts open
: Before after
5. Primary protection for internal transformer faults
: Differential
6. Amps cities in NEC table310.15B16 are based on ambient temperature of
: 86F
7. Delta T of 10C between component and air needs
: Warrants investigation
, NETA 3 PRACTICE TEST GUIDE
8. Motor overload protection is designed to break short circuit or ground fault current true
or false
: False
9. Which standard addresses equipment grounding
: NFPA 70
10. Which SCADA communication is only appropriate for short distances
: CAT 6
11. What is the cell voltage deviation that indicates need for equalizing charge.
_____ volts
: 0.05
12. A 21 device measures
: Volts and amps
13. If the person who installed LOTO cannot remove it, another person may under
direction of _____ provided the ____ strictly adhered to standard procedure
: Employer employer
