Water ( ) flows steadily from section 1 of a pipeline to section 2

PHYSICS · Single correct · CBSE · Physics · Mechanical Properties of Fluids · Mechanical Properties of Fluids

Problem

Water (

\rho = 1.0\times10^{3}\,\text{kg}\!/\!\text{m}^{3}

) flows steadily from section 1 of a pipeline to section 2, which is

3.0\,\text{m}

higher in elevation. At section 1 the diameter is

6.0\,\text{cm}

, the speed is

2.0\,\text{m}\!/\!\text{s}

, and the gauge pressure is

1.5\times10^{5}\,\text{Pa}

. The diameter at section 2 is

3.0\,\text{cm}

. Neglecting energy losses, what is the gauge pressure at section 2? (a)

1.5\times10^{5}\,\text{Pa}

(b)

1.2\times10^{5}\,\text{Pa}

(c)

9.1\times10^{4}\,\text{Pa}

(d)

1.15\times10^{5}\,\text{Pa}