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WorksheetsFITTER 4th Sem Module 3
Total questions: 43
Worksheet time: 22mins
Name
Class
Date
1.
What is the name of the part marked as 'X' in Hydraulic power System?
a)
Two piston valve
b)
Double acting cylinder
c)
Pump
d)
Reservoir
2.
Which gauge indicates the amount of fluid pressure in the hydraulic system?
a)
Vacuum gauge
b)
Pressure gauge
c)
Fluid gauge
d)
Pneumatic gauge
3.
What is the name of adjustable restrictor?
a)
Needle restrictor
b)
Longitudinal restrictor
c)
Gap restrictor
d)
Circumferential restrictor
4.
What is the operating voltage of electro pneumatics?
a)
10V- 140V
b)
12V - 220V
c)
15V - 200V
d)
200V - 240V
5.
What is the name of the part marked as 'X' in one way flow control valve?
a)
Throttling screw
b)
Notch
c)
Opening of spring ball
d)
Valve set
6.
What is the type of solenoid valve?
a)
5/2 way double solenoid valve
b)
5/2 way single solenoid valve
c)
3/2 way single solenoid valve
d)
Double solenoid valve
7.
What is the type of filter?
a)
Absorbent filter
b)
Mechanical filter
c)
Magnetic filter
d)
Return line filter
8.
Which system gets compressed air as energy inputs?
a)
Hydraulic System
b)
Pneumatic System
c)
Electrical System
d)
Mechanical System
9.
What is the science that you study the properties and application of air?
a)
Hydraulic System
b)
Pneumatic System
c)
Electrical System
d)
Mechanical System
10.
Which pressure value is measured with respect to perfect vacuum?
a)
Atmospheric Pressure
b)
Absolute Pressure
c)
Gauge Pressure
d)
Vacuum Pressure
11.
Which system is used to move load with less efforts?
a)
Pneumatics
b)
Hydraulics
c)
Pressure
d)
Flow of Air
12.
Which actuation is under the applications of pneumatics?
a)
Drag
b)
Push
c)
Close
d)
Open
13.
Which system uses liquid as transmitting fluid?
a)
Pneumatic system
b)
Hydraulic
c)
Electrical
d)
Mechanical
14.
What is the working system?
a)
Work done in mechanical and Pneumatic system
b)
Work done in mechanical and Hydraulic system
c)
Work done in mechanical and Electrical system
d)
Work done in mechanical and Electronic system
15.
What is the name of the Hydraulic Circuit?
a)
5/2 way circuit
b)
4/2 way circuit
c)
3/2 way circuit
d)
By - Pass circuit
16.
Which valve is used to control the direction of the flow of fluid?
a)
Flow control valve
b)
Non - return valve
c)
Pressure control valve
d)
Directional control valve
17.
Which part of the single acting cylinder is attached with the load?
a)
Spring
b)
Seal
c)
Piston
d)
Piston Rod
18.
Which device in pneumatics is used for converting pressure energy of compressed air in to mechanical energy?
a)
Pneumatic actuators
b)
Filter
c)
Regulator
d)
Cylinder
19.
What is the purpose of direction control valve in hydraulic system?
a)
Open or close
b)
Increase the pressure
c)
Decrease the pressure
d)
Control the valve
20.
Where ram is used in hydraulic linear actuator?
a)
Elevator Jack
b)
Oil Pumps
c)
Rotating motor
d)
Hydro motor
21.
Which energy is converted by hydro static pressure of the oil?
a)
Electrical energy
b)
Mechanical energy
c)
Pneumatic energy
d)
Hydraulic energy
22.
Which valve block flow in one direction and allow free flow in the other direction?
a)
Non- return valve
b)
4/2 way Valve
c)
Gate valve
d)
Globle valve
23.
Where hydraulic by-pass circuit is used in common?
a)
Milling machine
b)
Turning machine
c)
Grinding machine
d)
Shearing machine
24.
What is hydraulic function?
a)
Hydrostatic Pressure
b)
Transmission of fluid pressure
c)
Inequal piston areas
d)
Turbulent flow
25.
Which energy is present in oil by virtue of its motion?
a)
Potential energy
b)
Kinetic energy
c)
Static energy
d)
Heat energy
26.
Which property of oil that controls the flow in hydraulic system?
a)
Viscosity
b)
Oilness
c)
Pour point
d)
Flash point
27.
What is the name of the device used to remove dust, chips and other foreign particles from the fluid?
a)
Pressure regulating valve
b)
Filter
c)
Accumulator
d)
Regulator
28.
Which valve is used as interface between the electrical and pneumatic system?
a)
Roller valve
b)
Flow control valve
c)
Solenoid valve
d)
Pressure relief valve
29.
Which valve is used for mechanical position to sense in machine automation system?
a)
Pressure relief valve
b)
Roller valve
c)
Flow control valve
d)
Directional valve
30.
Which valve is used to remove the excess amount of oil in the hydraulic system?
a)
Pressure relief valve
b)
Pressure reducing valve
c)
Pressure regulator valve
d)
Roller valve
31.
Which valve is an orifice or restrictor in hydraulic system?
a)
Flow control valve
b)
Check valve
c)
Direction control valve
d)
Pressure Valve
32.
Which device enables different flow rate of oil?
a)
Throttle valve
b)
Pressure valve
c)
Orifice
d)
Restriction flow
33.
What is the periodic oil drain from the compressor?
a)
Once in a week
b)
Once in a month
c)
Once in every 3 months
d)
Once in every 6 months
34.
Which type of filter is used for trapping various sizes of particular matter?
a)
Mechanical filter
b)
Absorbent filter
c)
Magnetic filter
d)
Suction filter
35.
Which type of filter is used to remove ferrous materials from oil in hydraulic system?
a)
Pressure line filter
b)
Offline filter
c)
Magnetic filter
d)
Absorbent filter
36.
Which property in hydraulic oil function is medium for heat transfer?
a)
Shear stability
b)
Low volatility
c)
Low foaming tendency
d)
Good thermal capacity and conductivity
37.
Which device is used for handling and removing contamination from hydraulic oil?
a)
Hydraulic filter
b)
Actuators
c)
Valve
d)
Regulator
38.
Which part of double acting cylinder prevents air leakage from cylinder to atmosphere?
a)
Piston seal
b)
Rod Seal
c)
Piston end
d)
Rod end
39.
What is the defect caused by inter locked air bubbles and pockets in the hydraulic pipe lines and components?
a)
Cavitation
b)
Static pressure
c)
Vapour Pressure
d)
Pressure jerks
40.
What is the cause for oil flow under pressure while passing through the restricted passage?
a)
Increase Heat
b)
Decrease Heat
c)
Decrease volume
d)
Increase pressure
41.
Which valve prevents the system pressure from rising too high if the pressure regulating valve fails?
a)
Check valve
b)
Relief valve
c)
Pressure valve
d)
Direction control valve
42.
Which causes more than 90% of hydraulic system failure?
a)
Contamination of hydraulic fluid
b)
Leak of valve
c)
Pump
d)
Electric power
43.
Which type of filter helps to protect the pump from fluid contaminations?
a)
Suction filter
b)
Magnetic filter
c)
Absorbent filter
d)
Mechanical filter
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