Fitter –Semester 4, Module 3 -Hydraulic and Pneumatics

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Common for All Fitter Trade 2nd Year part -1

NAME *

NAME OF THE ITI *

MOBILE NUMBER *

1 :Which energy is converted in hydraulic pump? *

2 points

A Thermal energy to hydraulic energy

B Electrical energy to hydraulic energy

C Pneumatic energy to hydraulic energy

D Mechanical energy to hydraulic energy

2:Which type of valve connections are opened or closed by means of spool slide? *

2 points

A Check valve

B Butterfly valve

C Solenoid valve

D Non-return valve

3: What is the name of part marked as ‘x’ in compressor? *

2 points

A Relief valve

B Thermometer

C Shut-off valve

D Pressure gauge

4: How hydraulic transmission force is controlled? *

2 points

A By air

B By gears

C By fluids

D By electric

5: Which valve is used to permit fluid flow in one direction and block flow in opposite direction? *

2 points

A Check valve

B Shuttle valve

C Orifice check valve

D Pressure relief valve

6: What is the name of the part marked as ‘x’ in non-return valve? *

2 points

A Disc

B Stop plug

C Hinge pin

D Disc hinge nut

7: Which valve has two inlet / one outlet in hydraulic / pneumatic system? *

2 points

A Slide valve

B Check valve

C Shuttle valve

D Solenoid valve

8: What is the name of the symbol? *

2 points

A Moving part of valve

B Pressure relief valve

C Double acting cylinder

D Single acting cylinder with spring

9: Why in hydraulic pump the filter is installed in suction line? *

2 points

A Reduce the oil to enter

B Preventing foreign matter

C Reduce pressure in the pump

D Increase the pressure in the pump

10: Which valve is used for fine control of flow in pipe line? *

2 points

A Gate valve

B Globe valve

C Needle valve

D Non - return valve

11: Which valve is used to permit fluid to flow in one direction and block the flow in oppsite direction? *

2 points

A Globe valve

B Check valve

C Shuttle valve

D Pressure relief valve

12: Which valve protect against excessive pressure in hydraulic system? *

2 points

A Gate valve

B Globe valve

C Relief valve

D Non-return valve

13: Which gauge indicates pressure valve above the atmospheric pressure? *

2 points

A Pressure gauge

B Temperature gauge

C Receiver gauge

D Precision gauge

14: Which pressure value is read through pressure gauge? *

2 points

A Gauge Pressure

B Atmospheric Pressure

C Vacuum Pressure

D Absolute Pressure

15: Which formula is used to calculate the pressure? *

2 points

A Force + Area

B Force/Area

C Force - Area

D Force x Area

16: Which formula is used to calculate the absolute pressure? *

2 points

A Atmospheric Pressure - Gauge Pressure

B Atmospheric Pressure + Gauge Pressure

C Atmospheric Pressure x Gauge Pressure

D Atmospheric Pressure ÷ Gauge Pressure

17: What is the unit of pressure in SI unit? *

2 points

A Kilogram

B Pascal

C Pound

D Meter

18: Which term is a metric unit of pressure equal to 1,00,000 pascal? *

2 points

A Millibar

B Kilo Pascal

C Bar

D Newton

19: What is the value of bar in metric unit of pressure? *

2 points

A 1 kg/ mm2

B 1 kg/ cm2

C 1 kg/ m2

D 1 kg/ dm2

20: Which formula is used to calculate force? *

2 points

A Pressure ÷ Area

B Pressure x Area

C Pressure - Area

D Pressure + Area

21: What is the unit of force in SI unit? *

2 points

A Kilogram

B Newton

C Dyne

D Pounds

22: What is the name of valve?

2 points

A Flow control valve

B Ball type check valve

C Swing check valve

D Pressure type valve

Clear selection

23: What is the name of the valve symbol? *

2 points

A Directional control valve

B Flow control valve

C 3/2 way valve

D 5/2 way valve

24: What is the name of pneumatic valve symbol? *

2 points

A Directional control valve

B Roller valve

C Pressure valve

D Flow control valve

25: What is the name of pneumatic symbol? *

2 points

A Filter

B Lubricator

C Dryer

D Pressure gauge

26:What is the name of valve? *

2 points

A 5 port 2 position valve

B 3 port 2 position valve

C 4 port 3 position valve

D 4 port 2 position valve

27: What is the name of part marked as X? *

2 points

A Cylinder

B Piston

C Spring

D Inlet port

28: What is the name of part marked as X? *

2 points

A Cylinder

B Piston

C Seal

D Spring

29: What is the formula for the cylinder output force? *

2 points

A 𝐹 =P/A x10

B 𝐹 =A/P x10

C 𝐹 =𝑃×𝐴/10

D 𝐹 =10/PxA

30:What is the volumetric efficiency of piston type motor? *

2 points

A 0.8

B 0.75

C 0.98

D 0.95

31: Which parameter is specified to design hydro motor? *

2 points

A Maximum operating pressure

B Maximum oil saving method

C Maximum piston size

D Maximum cylinder size

32: What is the name of motor? *

2 points

A Gear type of motor

B Vane type motor

C Axial piston motor

D Radial piston motor

33: What is type of hydro motor? *

2 points

A Gear type

B Vane type

C Piston type

D Propeller type

34: How many types are there in Hydro motors? *

2 points

A 4 type

B 3 type

C 5 type

D 2 type

35: What is the name of part marked as 'X' in double acting cylinder? *

2 points

A Guide ring

B Piston rod

C Lock nut

D Cylinder cap

36: What is the name of symbol used in hydraulic cylinder? *

2 points

A Single acting load returns the piston

B Single acting return piston

C Double acting power stoke

D Double acting with crushing

37: How direction control valves are classified? *

2 points

A Number of ports and position

B Direction of flow

C Maximum pressure of valve

D Direction of pressure

38: What is the type of direction control valve? *

2 points

A 2/2 way valve

B 3/2 way valve

C 4/2 way valve

D 4/3 way valve

39: What is the name of circuit diagram? *

2 points

A 2/2 way valve

B 3/2 way valve

C 4/2 way valve

D 4/3 way valve

40: What is the name of the part marked as X in Hydraulic power System? *

2 points

A Two piston valve

B Double acting cylinder

C Pump

D Reservoir

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