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Question 1. Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?
  1.     Hydraulic ram
  2.     Hydraulic intensifier
  3.     Hydraulic torque converter
  4.     Hydraulic accumulator
Answer: Option C

Question 2. The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,
  1.     One-fourth
  2.     One-half
  3.     Three-fourth
  4.     Double
Answer: Option B

Question 3. The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,
  1.     One-fourth
  2.     One-half
  3.     Three-fourth
  4.     Double
Answer: Option B

Question 4. In a forced vortex, the velocity of flow everywhere within the fluid is
  1.     Maximum
  2.     Minimum
  3.     Zero
  4.     Nonzero finite
Answer: Option D

Question 5. Guide angle as per the aerofoil theory of kaplan turbine blade design is defined as the angle between
  1.     Lift and resultant force
  2.     Drag and resultant force
  3.     Lift and tangential force
  4.     Lift and drag
Answer: Option A

Question 6. The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,
  1.     One-fourth
  2.     One-half
  3.     Three-fourth
  4.     Double
Answer: Option B