Free Master Electrician Exam Questions That Helps Candidates Pass

Liquidity measures a company’s ability to pay short-term obligations using current assets such as cash, receivables, and inventory. Long-term assets (B) do not determine liquidity. Profitability (C) and equity (D) are different financial measures. Exam questions on liquidity test candidates’ financial literacy, which is essential for managing an electrical contracting business.

The OESC requires an electric range to be supplied by a dedicated 240V circuit, typically 40A–50A. Refrigerators (A) and dishwashers (C) usually use 120V, and countertop receptacles (D) require 20A circuits but not 240V. Appliance circuit requirements are heavily tested because they are common inspection failures.

According to the OESC, hallways longer than 4.5 m must have at least one receptacle so that no point is more than 4.5 m from an outlet. This rule prevents excessive reliance on extension cords, which increase fire risk. Option (A) is too strict, (C) applies to living areas, and (D) is incorrect. This rule is commonly tested on the exam, as it directly relates to compliance in residential wiring layouts.

The OESC specifies burial depths to protect underground wiring from mechanical damage. For conduit under driveways or areas subject to vehicle loads, the minimum burial depth is 600 mm. Shallower depths such as 150 mm, 300 mm, or 450 mm are insufficient for the added risk of crushing. This requirement, found in Rule 12-012 and associated tables, ensures both safety and compliance. Questions about burial depths are common on the exam because they test detailed recall of OESC tables and real-world application in trenching and conduit installations.

A construction lien allows contractors and subcontractors to secure payment by placing a legal claim on the property if unpaid. It does not guarantee completion (B), protect property owners (C), or replace bonds (D). Master Electricians must understand lien law, as it ensures financial protection in contracting. The exam includes questions on contractor rights and obligations related to liens.