Q.1
14 Marks(a)
Give difference between hydraulic and pneumatic system.
(b)
Explain basic components of pneumatic system with general layout diagram.
(c)
Draw and explain a simple hydraulic circuit for controlling single acting cylinder.
Gujarat Technological UniversitySummer 2026 examination
GTU 2171912 Oil Hydraulics and Pneumatics Summer 2026 Question Paper & PDF
B.E. · Mechanical Engineering · Semester 7 · Subject code 2171912
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Write desirable properties of hydraulic oil.
(b)
Explain contamination and filtration in hydraulic system.
(c)
Explain construction and working of FRL unit with neat diagram.
OR
(c)
Explain classification and applications of hydraulic fluids.
Q.3
14 Marks(a)
Give classification of hydraulic pumps and explain positive displacement pump.
(b)
Explain working of gear pump with neat sketch.
(c)
Explain control of a double-acting hydraulic cylinder by 4/3 direction control valve with circuit diagram.
OR
(a)
Explain ‘cushioning’ of pneumatic cylinder.
(b)
Explain construction and working of axial piston pump.
(c)
How speed control is achieved in Pneumatic systems? Explain fixed flow and variable flow control valve.
Q.4
14 Marks(a)
List different types of accumulator. Explain any one in detail.
(b)
Explain radial piston pump with neat sketch.
(c)
Design a hydraulic circuit using sequence valve for two cylinders.
OR
(a)
Explain fluid reservoir used in a power hydraulic system.
(b)
Classify flow control valves and explain any one in detail.
(c)
Explain working of counterbalance valve with application.
Q.5
14 Marks(a)
Explain the principle of regenerative circuit.
(b)
Explain various types of automation used in industry.
(c)
Sketch & explain pneumatic circuit by using quick exhaust valve.
OR
(a)
Draw and explain logic OR valve for pneumatic system.
(b)
Explain cascade method in pneumatic circuits.
(c)
Draw and explain meter-in and meter-out circuits.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Oil Hydraulics and Pneumatics (Summer 2026, B.E. · Mechanical Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.