English One word Substitutes Online Test 3

One word substitute is Plumber.

Mechanic: a skilled worker who repairs and maintains vehicle engines and other machinery.
Blacksmith: a person who makes and repairs things in iron by hand.
Plumber: a person who fits and repairs the pipes, fittings, and other apparatus of water supply, sanitation, or heating systems.
Technocrat: an exponent or advocate of technocracy.