Deck 5: Fluid Power

Question 1

Fluid power components may include: pump, cylinder, check valve, and ________.

A) hydraulic motor
B) flow control valve
C) pressure relief valve
D) All answers are correct

Answer 1

D

Question 2

Hydraulic accumulators may be used in the __________ system of a wind turbine generator.

A) blade pitch
B) gearbox lubrication
C) generator slip ring
D) All answers are correct

Answer 2

A

Question 3

Polymer sealing elements may include: o-rings, "V" packs, loaded "U" rings, and rod wipers.

Answer 3

True

Question 4

Maintenance activities for fluid power systems may include: fluid level inspection, oil sampling, and _________.

A) painting seals
B) changing filters
C) cutting lines
D) adding water to the sump

Question 5

Fluid power ancillary devices may include: accumulator, conditioning systems, and ________.

A) feedback sensors
B) seals
C) connecting devices
D) All answers are correct

Question 6

Wind turbine fluid power systems may include: blade pitch, parking brakes, and active yaw brakes.

Question 7

An approved LOTO procedure is not required when performing maintenance on hydraulic equipment.

Question 8

Fluid power ancillary devises may include: heaters, coolers, and pumps.

Question 9

An accumulator may be used as a source of backup power in a fluid power system.

Question 10

Fluid systems are divided into two catagories: fluid transfer and fluid power.

Question 11

Hydraulic control valves include: directional, ball, and check.

Question 12

Specific gravity of a substance is the comparison of its weight per unit volume compared to equal volume of gasoline.

Question 13

Fluid power applications for a wind turbine generator include: parking brake, yaw brake, and __________.

A) blade pitch
B) yaw drive
C) power bolting
D) All answers are correct

Question 14

Visual indicators for a fluid system include: level, flow, pressure, and temperature.

Question 15

Hydraulic fluids used in fluid power systems are considered compressible.