Question: For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be_________________?

• 1. 300
• 2. 337.5
• 3. 600
• 4. 675

Question: The discharge over a broad crested weir is maximum when the depth of flow is_______________?

• 1. H/3
• 2. H/2
• 3. 2 H/5
• 4. 2 H/3

Question: Which of the following has highest coefficient of discharge ?

• 1. sharp edged orifice
• 2. venturimeter
• 3. Borda’s mouthpiece running full
• 4. CipoUetti weir

Question: The major loss of energy in long pipes is due to_______________?

• 1. sudden enlargement
• 2. sudden contraction
• 3. gradual contraction or enlargement
• 4. friction

Question: Coefficient of velocity for Borda’s mouth piece running full is________________?

• 1. 0.611
• 2. 0.707
• 3. 0.855
• 4. 1.00

Question: The pressure at the summit of a syphon is_______________?

• 1. equal to atmospheric
• 2. less than atmospheric
• 3. more than atmospheric
• 4. none of the above

Question: Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by________________?

• 1. 5%
• 2. 10%
• 3. 15%
• 4. 20%

Question: The theoretical value of coefficient of contraction of a sharp edged orifice is_______________?

• 1. 0.611
• 2. 0.85
• 3. 0.98
• 4. 1.00

Question: The pitot tube is used to measure________________?

• 1. velocity at stagnation point
• 2. stagnation pressure
• 3. static pressure
• 4. dynamic pressure

Question: Equation of continuity is based on the principle of conservation of_________________?

• 1. mass
• 2. energy
• 3. momentum
• 4. none of the above