SSC JE Civil Engineering 25-Sep-2019 Shift 1 Solved Paper

Question : 196 of 200

Marks: +1, -0

A pressure gauge fitted on the side of a tank filled with liquid reads 50 kPa and 100 kPa at heights of 10 m and 5 m. What is the approximate density of the liquid (in kg/m

^{3}

)? (take g = 10)

10
5000
100
1000

Validate

Solution:

Pressure at (10m) = 50KPa = 50 × 10

^{3}

l/m

^{2}

ρgh = 50 × 10^3

ρ = {50 ×1000 }/{10× 10}=500

= kg/m

^3

at 5m, ρ = 100 × 10

^{3}

N/m

^{2}

ρ={100×1000}/{10×5}=2000

kg / m

^3

ρ_ \mix={(500×10)+(2000×5)}/(10+5)

=15000/15

= 1000kg/m

^{3}

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