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Rush Hospital Interview Questions and Answers

Updated 26 Jul 2024

Q1. What is critical zone & rest zone ?

Ans.

The critical zone is the area where a project's success or failure is determined, while the rest zone is the area where less critical tasks are performed.

  • The critical zone is the most important part of a project, where key decisions and actions are taken.

  • The rest zone is the area where less critical tasks are performed, such as administrative work or non-essential activities.

  • In construction projects, the critical zone may include activities like foundation work or structural ...read more

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Q2. How we call this is M30 concrete ?

Ans.

M30 concrete is a type of concrete with a specified compressive strength of 30 megapascals (MPa).

  • M30 concrete is commonly used in construction projects where high strength is required.

  • The 'M' in M30 stands for 'mix' and the number represents the compressive strength in MPa.

  • To achieve M30 concrete, the mix design typically includes a combination of cement, aggregates, and water.

  • The proportions of the mix are determined based on the desired strength and other factors such as wo...read more

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Q3. What is the use of Slump Test

Ans.

Slump test is used to measure the consistency of fresh concrete before it sets.

  • It measures the workability of concrete.

  • It helps to determine the water-cement ratio.

  • It is a simple and quick test that can be performed on-site.

  • The test involves filling a slump cone with concrete and measuring the slump.

  • The slump value indicates the amount of deformation or settling of the concrete.

  • The test is used to ensure that the concrete has the desired consistency for the intended use.

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Q4. What is nominal mix and Design mix

Ans.

Nominal mix is a mix of fixed proportions of cement, sand, and aggregate. Design mix is a mix of specified proportions of cement, sand, and aggregate.

  • Nominal mix is used for small construction projects where quality control is not a major concern.

  • Design mix is used for large construction projects where quality control is important.

  • Nominal mix has a fixed ratio of ingredients, usually 1:2:4 or 1:3:6.

  • Design mix has a specified ratio of ingredients based on the strength required...read more

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Q5. What's M20 design ration ?

Ans.

M20 design ratio is the ratio of the weight of cement to the weight of sand to the weight of coarse aggregates in concrete mix.

  • M20 design ratio is commonly used in construction for concrete mix design.

  • It specifies the proportions of cement, sand, and coarse aggregates in the mix.

  • The design ratio for M20 is 1:1.5:3, which means 1 part cement, 1.5 parts sand, and 3 parts coarse aggregates by weight.

  • This ratio ensures the desired strength and workability of the concrete mix.

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Q6. What is M30

Ans.

M30 is a grade of concrete used in construction.

  • M30 refers to the compressive strength of concrete after 28 days of curing.

  • It is commonly used in the construction of bridges, high-rise buildings, and heavy-duty industrial structures.

  • M30 concrete has a mix ratio of 1:1:2 (cement:sand:aggregate).

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Q7. Test Done on Aggregate?

Ans.

Yes, various tests are done on aggregates to ensure their quality and suitability for use in construction.

  • Tests include sieve analysis, specific gravity, absorption, and abrasion resistance.

  • These tests help determine the size distribution, density, water absorption, and durability of the aggregate.

  • The results of these tests are used to ensure that the aggregate meets the required specifications for use in construction.

  • For example, if the aggregate has a high absorption rate, ...read more

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Q8. Cables size and it's used current rating

Ans.

Cable size determines its current rating, which is crucial for safe and efficient electrical installations.

  • Cable size is typically measured in AWG (American Wire Gauge) or mm².

  • The current rating of a cable depends on factors like conductor material, insulation type, and installation method.

  • For example, a 12 AWG copper cable may have a current rating of 20 amps for general purpose circuits.

  • It is important to select the right cable size to prevent overheating and ensure safety ...read more

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Q9. What is L.A. and used.

Ans.

L.A. stands for Los Angeles and is commonly used as an abbreviation for the city in California.

  • L.A. is often used in addresses, such as L.A., California.

  • It can also refer to the Los Angeles metropolitan area.

  • In the entertainment industry, L.A. is synonymous with Hollywood and the film industry.

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