1
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-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.
A
$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$
B
$$Q = {Q_1} + {Q_2} + {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$
C
$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} + {h_{L2}} + {h_{L3}}$$
D
$$Q = {Q_1} = {Q_2} = {Q_3};\,\,\,\,\,\,\,\,\,\,{h_L} = {h_{L1}} = {h_{L2}} = {h_{L3}}$$
2
GATE ME 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
Couette flow is characterized by
A
Steady, incompressible, laminar flow through a straight circular pipe
B
Fully developed turbulent flow through a straight circular pipe
C
Steady, incompressible, laminar flow between two fixed parallel plates
D
Steady, incompressible, laminar flow between one fixed plate and the other moving with a constant velocity
3
GATE ME 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider fully developed flow in a circular pipe with negligible entrance length effects. Assuming the mass flow rate, density and friction factor to be constant, if the length of the pipe is doubled and the diameter is halved, the head loss due to friction will increase by a factor of
A
$$4$$
B
$$16$$
C
$$32$$
D
$$64$$
4
GATE ME 2010
MCQ (Single Correct Answer)
+1
-0.3
Maximum velocity of a one-dimensional incompressible fully developed viscous flow, between two fixed parallel plates, is $$6\,\,m{s^{ - 1}}.$$ Then mean velocity (in $$m{s^{ - 1}}$$) of the flow is
A
$$2$$
B
$$3$$
C
$$4$$
D
$$5$$
GATE ME Subjects
Turbo Machinery
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12