1
GATE ME 2017 Set 2
Numerical
+2
-0
A $$60$$ $$mm$$ $$-$$ diameter water jet strikes a plate containing a hole of $$40mm$$ 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 $$1000$$ $$kg/{m^3}$$ . If velocities are as indicated in the figure, the magnitude of horizontal force (in $$N$$) required to hold the plate is _______________
2
GATE ME 2017 Set 2
Numerical
+2
-0
The arrangement shown in the figure measures the velocity $$V$$ of a gas of density $$1kg/{m^3}$$ flowing through a pipe. The acceleration due to gravity is $$9.81m/{s^2}.$$ If the manometric fluid is water (density $${1000kg/{m^3}}$$ ) and the velocity $$V$$ is $$20 m/s,$$ the differential head $$h$$ (in $$mm$$) between the two arms of the manometer is ______.
3
GATE ME 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Consider a laminar flow at zero over a flat plate . The shear stress at the wall is denoted by $${\tau _w}.$$ The axial positions $${x_1}$$ and $${x_2}$$ on the plate are measured from the leading edge in the direction of flow. If $${x_2} > {x_1},$$ then
A
$${\tau _w}\left| {_{{x_1}} = {\tau _w}} \right|{}_{{x_2}} = 0$$
B
$${\tau _w}\left| {_{{x_1}} = {\tau _w}} \right|{}_{{x_2}} \ne 0$$
C
$${\tau _w}\left| {_{{x_1}} > {\tau _w}} \right|{}_{{x_2}}$$
D
$${\tau _w}\left| {_{{x_1}} < {\tau _w}} \right|{}_{{x_2}}$$
4
GATE ME 2017 Set 2
Numerical
+1
-0
The heat loss from a fin is $$6W.$$ The effectiveness of the fin are $$3$$ and $$0.75,$$ respectively. The heat loss (in $$W$$) from the fin, keeping the entire fin surface at base temperature, is ___________________