# Geology & Hydrology MCQs Test Series Part 3

Rate this post

## Geology MCQ & Hydrology MCQ Part 3

You will get all Hydrology Engineering related MCQs best test series with answers for best practices for competitive exams to crack competitive exams will always update our article and add more and more MCQ so bookmark and share the civil experience site for the future learning.

Here in civil experience best civil engineering website, you will get the best learning and study materials, article, pdf, ppt, reports, etc for Hydrology engineering and others too so must join a civil experience blog and learn every day

## Which of the following is not an intrusive igneous rock?

basalt is not an intrusive igneous rock.

## Which of the following is a significant constituent of sedimentary rock?

calcite is a significant constituent of sedimentary rock.

## Most of the stones possess the specific gravity in the range of

ANSWER = [C] 2.4 to 2.8

## At the base of a mountain, a mercury barometer reads 700 mm whereas at the top it reads 500 mm of Mercury. The density of air is 1.23 kg/m3, which is assumed constant, Determine the height of the mountain.

Difference in mercury level between top & bottom = 700 – 500 = 200 mm

For calculating the height of the mountain,

Pressure difference due to air = Pressure difference due to mercury

1.23 Ã— 9.81 Ã— h = 13.6 Ã— 1000 Ã— 9.81 Ã— 200 Ã— 10-3

Height of mountain (h) = 13.6 Ã— 1000 Ã— 200 Ã— 10-3 / 1.23

Height of mountain (h) = 2211.38 m

## Which of the following statement is correct?

ANSWER = [C] Zero air void and 100% saturation lines are same