Rkc Infrabuilt Engineer Trainee Interview Questions and Answers

Basic aptitude maths research and development

Basic topic for GD and economy of construction

Q1. Mix proportion of cement
Ans. 
The mix proportion of cement refers to the ratio of cement to other materials in a concrete mix.
• Mix proportion is typically expressed as a ratio of cement to aggregates (such as sand and gravel) and water.

• Common mix proportions for concrete are 1:2:4 (cement:sand:gravel) and 1:3:6.

• The mix proportion can vary depending on the desired strength and workability of the concrete.

• It is important to follow the recommended mix ...read more
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Q2. What is grade of concrete
Ans. 
Grade of concrete refers to the strength of the concrete mix measured in terms of compressive strength.
• Grade of concrete is denoted by the ratio of cement, sand, and aggregates in the mix.

• Common grades of concrete include M20, M25, and M30, where 'M' stands for mix and the number denotes the compressive strength in MPa.

• Higher grade concrete mixes have higher compressive strength and are used for structural purposes.

• The...read more
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