127. A hydraulic accumulator normally consists of
A.Two cylinders, two rams and a storage device
B.A cylinder and a ram
C.Two co-axial rams and two cylinders
D.A cylinder, a piston, storage tank and control valve

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128. A hydraulic intensifier normally consists of
A.Two cylinders, two rams and a storage device
B.A cylinder and a ram
C.Two co-axial rams and two cylinders
D.A cylinder, a piston, storage tank and control valve

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129. Hydraulic accumulator is used for
A.Accumulating oil
B.Supplying large quantities of oil for very short duration
C.Generally high pressures to operate hydraulic machines
D.Supplying energy when main supply fails

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130. Maximum impulse will be developed in hydraulic ram when
A.Waste valve closes suddenly
B.Supply pipe is long
C.Supply pipe is short
D.Ram chamber is large

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131. The maximum continuous power available from a hydroelectric plant under the most adverse hydraulic conditions, is known as
A.Base power
B.Firm power
C.Primary power
D.Secondary power

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132. A plot between power generated in MW and time is known as
A.Load curve
B.Load duration curve
C.Load factor curve
D.Demand curve

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133. Average generation in KWH per year / Installed capacity in kW x hrs per year, is known as
A.Capacity factor
B.Plant factor
C.Use factor
D.Any of the above

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