101. Group I contains dimensionless parameters and Group II contains the ratios.
     

     Group I	Group II
     P. Mach Number	1. Ratio of inertial force and gravitational force
     Q. Reynolds Number	2. Ratio of fluid velocity and velocity of sound
     R. Weber Number	3. Ratio of inertial force and viscous force
     S. Froude Number	4. Ratio of inertial force and surface tension force

     
     The correct match of dimensionless parameters in Group I with ratios in Group II is

1. 1. P-3, Q-2, R-4, S-1

   
   
   

   2. P-3, Q-4, R-2, S-1

   
   
   

   3. P-2, Q-3, R-4, S-1

   
   
   

   4. P-1, Q-3, R-2, S-4

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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102. A conventional flow duration curve is a plot between

1. 1. Flow and percentage time flow is exceeded

   
   
   

   2. Duration of flooding and ground level elevation

   
   
   

   3. Duration of water supply in a city and proportion of area receiving supply exceeding this duration

   
   
   

   4. Flow rate and duration of time taken to empty a reservoir at that flow rate

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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103. The dimension for kinematic viscosity is

1. 1. L

      MT

   
   
   

   2. L

      T²

   
   
   

   3. L²

      T

   
   
   

   4. ML

      T

   
   
   

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1. View Hint View Answer Discuss in Forum

   Unit of kinematic viscosity is m² /s
   ∴ Dimension is L² /T

   Correct Option: C

   Unit of kinematic viscosity is m² /s
   ∴ Dimension is L² /T

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104. For steady incompressible flow through a closed-conduit of uniform cross-section, the direction of flow will always be:

1. 1. from higher to lower elevation

   
   
   

   2. from higher to lower pressure

   
   
   

   3. from higher to lower velocity

   
   
   

   4. from higher to lower piezometric head

   
   
   

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1. View Hint View Answer Discuss in Forum

   Flow will be from high pressure to low pressure.

   Correct Option: B

   Flow will be from high pressure to low pressure.

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105. A hydraulic jump takes place in a frictionless rectangular channel. The pre-jump depth is y_p. The alternate and sequent depths corresponding to y_p are y_a and y_s respectively.
     The correct relationship among y_p, y_a and y_s is:

1. 1. y_a < y_s < y_p

   
   
   

   2. y_p < y_s < y_a

   
   
   

   3. y_p < y_s = y_a

   
   
   

   4. y_p = y_s = y_a

   
   
   

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1. View Hint View Answer Discuss in Forum

   y_p < y_s < y_a

   Correct Option: B

   y_p < y_s < y_a

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