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BARC OCES 2022 Quiz 7
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Question 1
If only gravity and inertia dominates, then what will be the expression for discharge ratio in model similarity?
Question 2
A harbor model has a horizontal scale of 1/50 and a vertical scale of 1/60. The interval between successive high tides in the model will be nearly? Assume tp = 12 hours.
Question 3
A ship model of scale 1:100 has a wave resistance of 1 kg at its design speed. The corresponding wave resistance in prototype will be?
Question 4
Dynamic similarly exists when the model and the prototype have the same-
Question 5
A 1: 25 model of a naval ship having a submerged area of 6 m2 and length 10 m has a total drag of 35 N when towed through water at a velocity of 2.0 m/s. Use relation 
for skin resistance. The value of 
is given by 
The total drag on prototype when moving at corresponding speed is ______kN.
[Take kinematic viscosity of water (or sea water) as 0.01 stokes and the specific weight of sea water as 1000 kg/m3]
for skin resistance. The value of is given by The total drag on prototype when moving at corresponding speed is ______kN.
[Take kinematic viscosity of water (or sea water) as 0.01 stokes and the specific weight of sea water as 1000 kg/m3]
Question 6
The orifice type viscometer measures viscosity in terms of
Question 7
In Marshall testing of bituminous mixes, the unit weight on increasing bitumen content
Question 8
Select the incorrect statement:
Question 9
The design speed of highway is 70 kmph. Assuming other data as per IRC recommendations, the adopted lag distance (in m) will be
Question 10
In a signal design as per IRC, if the sum of ratio of normal flow to saturation flow of two directional traffic is 0.50 and lost time per cycle is 10 s, the optimum cycle length seconds is
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ESE & GATE CEGeneralMar 1ESE & GATE CE
