General Studies · Engineering Materials
Select the INCORRECT pair regarding copper alloys used in pattern making, represented in the format 'Alloying Element > Alloy Name > Properties/Applications':
- 1Zinc > Brass > Not affected by industrial pollution and completely resistant to all marine environments✓
- 2Tin > Bronze > Hard and has good resistance to abrasion and corrosion
- 3Silicon > Silicon Brass > Used for door fittings, railings, and hinges
- 4Aluminum > Aluminum Brass > Used for pipe fittings and fasteners
Correct answer
Zinc > Brass > Not affected by industrial pollution and completely resistant to all marine environments
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