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Basic Civil Engineering Mcqs

Q:

Which of the below property of aggregates is not desirable?

A) Smooth texture B) Well graded
C) Angular shape D) Smaller size
 
Answer & Explanation Answer: C) Angular shape

Explanation: Aggregates should provide space for cement paste so as to lubricate the area. The parameters like texture, size, shape, grading are to be considered. Larger size, cubical, round and rough textured aggregates are preferred.

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2196
Q:

Contour Maps are not mandatory in civil engineering projects like road works, dams, canals,
etc.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: To identify a suitable site for these projects, to study the nature of ground and slopes and to make an estimate for earth work, a contour map of that region is required.

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710
Q:

Floor in a building

A) Separates levels B) Is laid below plinth
C) Contains R.C.C. D) Has thickness of 10cm
 
Answer & Explanation Answer: A) Separates levels

Explanation: Floor is laid above plinth level. It is used to tread on, keep furniture, household, other items. It also demarcates levels of a building. P.C.C. is done on flooring and it is usually 4cm thick.

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398
Q:

M15 concrete is used for:

A) Dams B) Foundation
C) R.C.C D) Mass concreting works
 
Answer & Explanation Answer: B) Foundation

Explanation: M10 is used for Mass concrete works, dams, etc. M20 is used for R.C.C. structures. M15 can be used for ground floor construction also.

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383
Q:

Which of the following is a good fire-resistant stone?

A) Clay B) Granite
C) Quartz D) Limestone
 
Answer & Explanation Answer: A) Clay

Explanation: Granite and Quartz undergo sudden expansion and flies into splinters. Limestone gets easily crumbled. Clay can withstand higher temperature and is used in pizza ovens, fireplaces, etc…

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309
Q:

Ready mix plant and central mix plant differ in:

A) Transportation B) Setting time
C) Properties D) Water addition
 
Answer & Explanation Answer: D) Water addition

Explanation: In ready mix plants, all the other ingredients are mixed, except water. While in central mix plants, water is also mixed along with other ingredients.

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270
Q:

In how many layers is oil paint applied to a surface?

A) 3 B) 4
C) 2 D) 1
 
Answer & Explanation Answer: A) 3

Explanation: Three layers of varying compositions are applied. They are primers, undercoats and finishing coats.

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263
Q:

The computer communicates with the user via:

A) CPU B) CRT
C) Graphics D) Display button
 
Answer & Explanation Answer: B) CRT

Explanation: Cathode Ray Tube (CRT) screen gives the user the design created as an image. It is done by entering commands to get specific functions performed.

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