Inspection and Testing Exam Practice (A4 PDF, 65 pages): two 60-question multiple-choice mock tests and 16 written scenarios with model answers and marking points. Practice for the 2391-52 assessments.

Inspection and Testing Calculations (A4 PDF, 128 pages): 200 calculation questions with full worked answers, covering continuity, ring finals, Zs and temperature adjustment, fault current, insulation resistance, RCDs, voltage drop, cable selection, adiabatic, TT electrodes and maximum demand.

Electrical Science Calculations (A4 PDF, 114 pages): 200 questions with full worked answers, from Ohm’s law and power to AC theory, power factor, three-phase, transformers, motors, mechanics and lighting.

18th Edition Amendment 4 Exam Practice (A4 PDF, 54 pages): three 60-question multiple-choice papers with an answer key and an explanation and where-to-look reference for every answer. Practice for the 2382-26 assessment.

Every calculated answer is checked by computer against a second, independent calculation. Written by a City & Guilds 2391-51 qualified electrician.

Independent publication. Not produced, endorsed or approved by City & Guilds, EAL, the IET or BSI. Contains no assessment questions and is not a past paper.