1
GATE PI 2016
+2
-0.6
In a fully developed turbulent flow through a circular pipe, a head loss of ݄$${{h_1}}$$ is observed. The diameter of the pipe is increased by $$10\%$$ for the same flow rate and a head loss of ݄$${{h_2}}$$ is noted. Assume friction factor for both the cases of pipe flow is the same. The ratio of $${{{h_2}} \over {{h_1}}}$$is closest to
A
$$0.34$$
B
$$0.62$$
C
$$0.87$$
D
$$1.00$$
2
GATE PI 2016
+2
-0.6
A long slender metallic rod of length $$L$$ is used as a fin. As shown in the figure below, the left end of the fin is kept at a constant temperature $${t_b}.$$ The fin loses heat by convection to the atmosphere which is at a temperature ta $${t_a}\,\,\left( {{t_a} < {t_b}} \right).$$ Four options of temperature profiles are shown. Identify the correct option.
A
B
C
D
3
GATE PI 2016
+1
-0.3
The throughput rate of a production system is $$20$$ units per hour. The average flow time is $$30$$ minutes and the cycle time is $$3$$ minutes. The average inventory (in units) in the system is
A
$$1.5$$
B
$$9$$
C
$$10$$
D
$$11.33$$
4
GATE PI 2016
+2
-0.6
Consider a network with nodes $$1, 2, 3, 4, 5$$ and $$6.$$ The nodes are connected with directed arcs as shown in the table below. The respective costs (in $$INR$$) incurred while traversing the directed arcs are also mentioned.

The second shortest path from node $$1$$ to node $$6$$ (i.e. the path that has the second least total cost and does not use any part of the shortest path) has a total cost (in $$INR$$) of

A
$$7$$
B
$$8$$
C
$$15$$
D
$$19$$
GATE PI Papers
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
1995
1994
1993
1992
1991
1990
1989
EXAM MAP
Medical
NEET