78. The flow rate in gear pump
A.Increases with increase in pressure
B.Decreases with increase in pressure
C.More or less remains constant with increase in pressure
D.Unpredictable

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79. Francis, Kaplan and propeller turbines fall under the category of
A.Impulse turbines
B.Reaction turbines
C.Axial flow turbines
D.Mixed flow turbines

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80. Reaction turbines are used for
A.Low head
B.Low head and high discharge
C.High head and low discharge
D.High head and high discharge

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81. The discharge through a reaction turbine with increase in unit speed
A.Increases
B.Decreases
C.Remains unaffected
D.First increases and then decreases

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82. The angle of taper on draft tube is
A.Greater than 15°
B.Greater than 8°
C.Greater than 5°
D.Less than 8°

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83. Specific speed for reaction turbines ranges from
A.0 to 4.5
B.10 to 100
C.80 to 200
D.250 to 300

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84. In axial flow fans and turbines, fluid enters and leaves as follows
A.Radially, axially
B.Axially, radially
C.Axially, axially
D.Radially, radially

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