GATE ME 2017 Paper 2 — page 14

Questions 40–42 of 65. Imported answers require review unless explicitly marked reviewed.

A 60 mm-diameter water jet strikes a plate containing a hole of 40 mm diameter as shown in the figure. Part of the jet passes through the hole horizontally, and the remaining is deflected vertically. The density of water is 1000 kg/m

. If velocities are as indicated in the figure, the magnitude of horizontal force (in N) required to hold the plate is ____________.

Diagram for Mechanical Engineering question 40

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

For the laminar flow of water over a sphere, the drag coefficient

is defined as

, where

is the drag force,

is the fluid density,

is the fluid velocity and

is the diameter of the sphere. The density of water is 1000 kg/m

. When the diameter of the sphere is 100 mm and the fluid velocity is 2 m/s, the drag coefficient is 0.5. If water now flows over another sphere of diameter 200 mm under dynamically similar conditions, the drag force (in N) on this sphere is ____________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the Rankine cycle for a steam power plant the turbine entry and exit enthalpies are 2803 kJ/kg and 1800 kJ/kg, respectively. The enthalpies of water at pump entry and exit are 121 kJ/kg and 124 kJ/kg, respectively. The specific steam consumption (in kg/kW·h) of the cycle is ____________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

2017 · Paper 2

Question 40

Question 41

Question 42