Quality Assurance Engineer Trainee Interview Questions and Answers for Freshers

Gear types include spur, helical, bevel, worm, rack and pinion. Gear views include front view, top view, and side view.

• Types of gears: spur, helical, bevel, worm, rack and pinion

• Gear views: front view, top view, side view

• Examples: Spur gear - used in parallel shaft arrangements, Helical gear - used for high-speed applications

IS code for mix design is IS 10262:2009

• IS 10262:2009 is the Indian Standard code for concrete mix design

• It provides guidelines for proportioning of concrete ingredients based on desired strength and workability

• The code covers various factors such as water-cement ratio, aggregate grading, and admixtures

Different grades of concrete are classified based on their compressive strength.

• Concrete grades are denoted by M followed by a number, such as M20, M30, etc.

• Higher grade concrete has higher compressive strength.

• Different grades are used for different types of construction projects.

• Common grades include M20, M25, M30, M35, and M40.

• Each grade has a specific mix ratio of cement, sand, and aggregates.