Hydraulics & Pneumatics - Mechanical Engineering (MCQ) questions and answers
Dear Readers, Welcome to Hydraulics & Pneumatics multiple choice questions and answers with explanation. These objective type Hydraulics & Pneumatics questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma.
Specially developed for the Mechanical Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies.
These tutorial are also important for your viva in university exams like Anna university, Pune, VTU, UPTU, CUSAT etc.
1) Match the following group 1 items with group 2 items and select the correct option.
1. Radial motor --------------------------- A. Swash plate
2. Axial motor ----------------------------- B. Crank shaft motor
3. Orbit -------------------------------------- C. Vane motor
4. Low torque motor ---------------------- D. Geroller motor
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a. 1-B, 2-A, 3-D, 4-C
b. 1-A, 2-C, 3-B, 4-D
c. 1-C, 2- A, 3-B, 4-D
d. 1-B, 2-D, 3-A, 4-C
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2) Cam lobe hydraulic motor is a type of
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a. axial hydraulic motor
b. orbit hydraulic motor
c. gear hydraulic motor
d. radial hydraulic motor
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3) Which of the following is a type of low-torque high-speed motor?
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a. radial piston motors
b. axial piston motors
c. bent axis motor
d. gear motor
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4) Motors used in high speed applications have
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a. high torque with high speed
b. low torque with high speed
c. high torque with low speed
d. none of the above
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5) Which motor causes heavy loads due to its usage in order to move at constant lower speeds?
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a. Low-torque high-speed motors
b. High-torque low-speed motors
c. both a. and b.
d. none of the above
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6) Low-torque high-speed motors are used in
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a. cranes
b. winches
c. fans
d. all of the above
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7) What is the function of hydraulic motor?
1. hydraulic motor converts hydraulic oil under pressure into torque and angular displacement
2. hydraulic motor converts hydraulic oil under pressure into force and linear displacement
3. hydraulic motor converts hydraulic energy into mechanical energy
4. hydraulic motor converts mechanical energy into hydraulic energy
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a. 1 and 4
b. 1 and 3
c. 2 and 3
d. 2 and 4
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8) When does holding piston keep the angle between yoke and cylinder block maximum?
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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 of the above
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Answer
Explanation
Related Ques
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ANSWER: when set pressure is greater than load pressure
Explanation:
No explanation is available for this question!
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9) What is the maximum angle between cylinder block and shaft axis?
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a. 30o
b. 50o
c. 45o
d. all of the above
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10) What happens when the distance between flange and cylinder block is varied?
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a. piston displacement cannot be varied
b. variable flow rate of fluid can be achieved
c. fixed flow rate can be achieved
d. all of the above
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