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PAT Testing Practice Exam

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This Pat Test Mock Exam contains 30 Questions. You must get a score of 24/30 to pass. Good luck!

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1. Overheating within a 13A plug would most likely be caused by: Mark one answer
A A loose connection
B An over tight cord grip
C An oversized cartridge fuse
D Reversed polarity
Correct Answer: A A loose connection
2. The requirements for testing fixed electrical installations supplying portable equipment are to be found in: Mark one answer
A BS 3036
B BS 7671
C GN 1
D GN 5
Correct Answer: B BS 7671
3. The maximum current carrying capacity of a 1.0 mm² cable is approximately: Mark one answer
A 10A
B 15A
C 20A
D 6A
Correct Answer: A 10A
4. 1Ω is equal to: Mark one answer
A 10 mΩ
B 10,000 mΩ
C 100 mΩ
D 1000 mΩ
Correct Answer: D 1000 mΩ
5. Which of the following construction classes may be used without special precautions being taken: Mark one answer
A 0 and 0I
B 0I and I
C I and II
D II and III
Correct Answer: C I and II
6. Which of the following procedures does not require a record to be kept: Mark one answer
A Inspection and test
B Labelling of equipment
C Testing only
D User checks
Correct Answer: D User checks
7. A review of inspection frequency can be assisted by referring to the: Mark one answer
A Earth continuity test results
B Equipment purchase invoice
C Equipment register
D Equipment stock check list
Correct Answer: C Equipment register
8. Training might be required on order that management understand their legal responsibilities as required by the: Mark one answer
A Electricity at Work Regulations
B IEE Guidance Note on inspection and testing
C IEE wiring Regulations
D Provision and Use of Work Equipment Regulations
Correct Answer: A Electricity at Work Regulations
9. In order to keep accurate records equipment used for testing should be: Mark one answer
A Calibrated regularly
B Checked for lead length regularly
C Kept in a locked secure place
D Upgraded every few years
Correct Answer: A Calibrated regularly
10. The Electricity at Work Regulations came into force in: Mark one answer
A 1974
B 1989
C 1999
D 2004
Correct Answer: B 1989
11. The most important check on a portable appliance is: Mark one answer
A Inspection review
B Production testing
C Type testing
D Visual inspection
Correct Answer: D Visual inspection
12. The Code of Practice for in-service inspection recommends the initial frequency of combined inspection and testing on Class I IT equipment in schools should be: Mark one answer
A 12 months
B 24 months
C 3 months
D 6 months
Correct Answer: A 12 months
13. PAT test instruments must be able to deliver an earth continuity test current up to a maximum of around: Mark one answer
A 10A
B 15A
C 25A
D 35A
Correct Answer: C 25A
14. Low resistance ohmmeters must provide a test current within the range: Mark one answer
A 20 to 100 mA
B 20 to 200 mA
C 4 to 100 mA
D 4 to 24 mA
Correct Answer: B 20 to 200 mA
15. The length of a 1.5 mm² extension lead should not exceed: Mark one answer
A 12 metres
B 14 metres
C 15 metres
D 18 metres
Correct Answer: C 15 metres
16. Formal visual inspections should be carried out by: Mark one answer
A All users
B Competent persons and other users
C Competent persons only
D The manufacturers representative
Correct Answer: C Competent persons only
17. Equipment that is permanently connected to a flex outlet type of accessory can be more easily tested using: Mark one answer
A A clamp ammeter (tong tester)
B A dedicated portable appliance test instrument
C A mains voltage tester
D An insulation/continuity tester
Correct Answer: D An insulation/continuity tester
18. Which of the following tests may inadvertently damage equipment insulation: Mark one answer
A Dielectric strength testing
B Earth continuity testing
C Functional testing
D Insulation resistance testing
Correct Answer: A Dielectric strength testing
19. The length of a 2.5mm² extension lead should not exceed: Mark one answer
A 12 metres
B 15 metres
C 25 metres
D 35 metres
Correct Answer: C 25 metres
20. If the maximum length of an extension lead is exceeded it should be fitted with a: Mark one answer
A 30 mA RCD
B Double insulated sheath
C Screened cover
D Type B mcb
Correct Answer: A 30 mA RCD
21. The minimum cross-sectional area for a flex protected by a 3A fused BS 1363 plug is: Mark one answer
A 0.23mm²
B 0.5mm²
C 0.75mm²
D 1.0mm²
Correct Answer: B 0.5mm²
22. The current used for continuity testing on Class I equipment should have a range of: Mark one answer
A 10 to 100 mA
B 10 to 200 mA
C 10 to 25 A
D 20 to 200 mA
Correct Answer: D 20 to 200 mA
23. The most important test on Class I equipment is: Mark one answer
A Earth continuity
B Earth leakage
C Insulation resistance
D Polarity
Correct Answer: A Earth continuity
24. The definition 'A conductive part liable to introduce a potential, generally earth potential, and not forming part of the electrical installation' describes which of the following: Mark one answer
A Exposed conductive part
B Exposed live part
C Extraneous conductive part
D Uninsulated part
Correct Answer: C Extraneous conductive part
25. The maximum protective conductor/touch current allowed for Class II equipment is: Mark one answer
A 0.25 mA
B 0.5 mA
C 0.75 mA
D 3.5 mA
Correct Answer: A 0.25 mA
26. Equipment designed to have a protective conductor current exceeding 3.5 mA should: Mark one answer
A Have a warning label attached
B Have a warning label fixed adjacent to the equipment primary power connection
C Have an internal protective not less than 0.5 mm²
D Have an internal protective not less than 0.75 mm²
Correct Answer: B Have a warning label fixed adjacent to the equipment primary power connection
27. A plug connected to equipment with a rating of 300 W should have a fuse rated at: Mark one answer
A 13A
B 2A
C 3A
D 5A
Correct Answer: C 3A
28. The minimum acceptable value of insulation resistance for Class II equipment is: Mark one answer
A 0.5 megohm
B 1.0 megohm
C 2.0 megohm
D 5.0 megohm
Correct Answer: C 2.0 megohm
29. Moveable equipment in industrial premises would be requiring user checks: Mark one answer
A Before use
B Daily
C Monthly
D Weekly
Correct Answer: A Before use
30. Equipment in which protection against electric shock relies on supply at SELV is: Mark one answer
A Class 0 Equipment
B Class I Equipment
C Class II Equipment
D Class III Equipment
Correct Answer: D Class III Equipment