WorksheetsUNIT 5 -DISPLACEMENT MEASUREMENT
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Displacement can be measured by
a)
both mechanical and electrical methods
b)
only mechanical
c)
only electrical
d)
Electromagnetic
e)
Pluto
2.
In The variable reluctance pickup _______________________is used inside the magnetic field
a)
simple coil
b)
resistance
c)
capacitance
d)
transducer
3.
Output of potentiometric type displacement transducer is
a)
resistance
b)
capacitance
c)
inductance
d)
voltage
4.
In LVDT the core material is made up of________ substance
a)
non magnetic
b)
magnetic
c)
brass
d)
wood
5.
LVDT converts displacement to ________.
a)
resistance
b)
voltage
c)
current
d)
ideal
6.
LVDT converts
a)
linear motion into an electrical signal
b)
linear motion into an displacement
c)
linear motion into an resistence
d)
linear motion into an mechanical energy
7.
LVDT consisting
a)
1 primary & 1 secondary winding
b)
1 primary & no secondary winding
c)
1 primary & 2 secondary winding
d)
2 primary & 1 secondary winding
8.
When LVDT core is in center position ,the primary coil coupling to the secondary coils
a)
equal
b)
Greater
c)
lesser
d)
Not applicable
9.
Inductive proximity switch works on
a)
electromechanical principal
b)
electromagnetic principal
c)
piezoelectric principal
d)
seebeck principal
10.
Inductive Proximity switch can be used to measure ________type of object
a)
Metal
b)
Wood
c)
Plastic
d)
Paper
11.
A digital encoder directly converts the physical variable to
a)
a parallel digital output
b)
mechanical output
c)
alphanumeric code output
d)
current output
12.
Digital transducer is also known as _______________________.
a)
Encoder
b)
Decoder
c)
RTD
d)
Multiplier
13.
In a contact encoder disc conducting layer in a track results
a)
Binary 0
b)
Binary 1
c)
current
d)
voltage
14.
An optical encoder uses a___________in front of an optically coded pattern,
a)
light source
b)
voltage source
c)
current source
d)
magnetic field
15.
An encoder is a device that provides a
a)
light output
b)
current output
c)
digital output
d)
magnetic output
16.
Absolute encoders will give the actual
a)
angular position
b)
datum position
c)
bit position
d)
mechanical position
100 %
