GATE ME 2015 Set 3 | GATE ME Year Wise Previous Years Questions

GATE ME 2015 Set 3

Numerical

-0

A Prandtl tube (Pitot-static tube with $$C=1$$) is used to measure the velocity of water. The differential manometer reading is $$10$$ mm of liquid column with a relative density of $$10.$$ Assuming $$g = 9.8\,\,m/{s^2},$$ the velocity of water (in $$m/s$$) is ___________

Your input ____

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-0.3

Three parallel pipes connected at the two ends have flow-rates $$\,\,\,{Q_1},\,\,\,{Q_2},\,\,\,\,$$ and $${Q_3}$$ respectively, and the corresponding frictional head losses are $${h_{L1}},\,\,\,{h_{L2}},$$ and $${h_{L3}}$$ respectively. The correct expressions for total flow rate $$(Q)$$ and frictional head loss across the two ends $$\left( {{h_L}} \right)$$ are.

$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$

$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$

$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$

$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-0.3

Couette flow is characterized by

Steady, incompressible, laminar flow through a straight circular pipe

Fully developed turbulent flow through a straight circular pipe

Steady, incompressible, laminar flow between two fixed parallel plates

Steady, incompressible, laminar flow between one fixed plate and the other moving with a constant velocity

GATE ME 2015 Set 3

MCQ (Single Correct Answer)

-0.6

Which of the following statement are TRUE, when the cavitation parameter $$\sigma = 0?$$
(i) The local pressure is reduced to vapor pressure.
(ii) Cavitation starts
(iii) Boiling of liquid starts
(iv) Cavitations stops

$$(i), (ii)$$ and $$(iv)$$

only $$(ii)$$ and $$(iii)$$

only $$(i)$$ and $$(iii)$$

$$(i),(ii)$$ and $$(iii)$$

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