Hydraulic System and Components – 6 – MCQs and Answers
1. Which of the following statements are true? 1. piston pumps are self priming
2. piston pumps require high maintenance
3. piston pumps have low cost of production
4. piston pumps have low volumetric efficiency
a. 1 and 2
b. 3 and 4
c. 1 and 3
d. all the above
View Answer / Hide Answer 2. A bent axis piston pump hasa. pump axis bent
b. cylinder block which is inclined at an angle to the drive shaft
c. both a and b
d. none of the above
View Answer / Hide Answer ANSWER: b. cylinder block which is inclined at an angle to the drive shaft
3. In which of these pumps, swash plate is replaced by cylinder block?a. bent axis piston pump
b. radial piston pump
c. axial piston pump
d. none of these
View Answer / Hide Answer ANSWER: a. bent axis piston pump
4. What happens when the distance between flange and cylinder block is varied? a. piston displacement cannot be varied
b. variable flow rate of fluid can be achieved
c. fixed flow rate can be achieved
d. all the above
View Answer / Hide Answer ANSWER: b. variable flow rate of fluid can be achieved
5. What is the maximum angle between cylinder block and shaft axis?a. 30
ob. 50
oc. 45
od. all the above
View Answer / Hide Answer 6. When does holding piston keep the angle between yoke and cylinder block maximum?a. when set pressure is greater than load pressure
b. when set pressure is less than load pressure
c. when set pressure and load pressure are same
d. all the above
View Answer / Hide Answer ANSWER: a. when set pressure is greater than load pressure
