WorksheetsMachinist 3rd Sem Module 5 Basic electrical equipments n Sensor
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Which is the law related to the given figure?
a)
Ohm's law
b)
Krichhoff's law
c)
Faraday's law
d)
Lenz's Law
2.
What is the electrical property of an electrical circuit to oppose any change in the magnitude of current flow?
a)
Conductivity
b)
Inductance
c)
Insulation
d)
Capacitance
3.
Which machine converts electric energy into mechanical rotary motion?
a)
Motor
b)
Generator
c)
Transformer
d)
Solenoid
4.
Which component rotates in an electric generator?
a)
Field pole
b)
Brushes
c)
Frame
d)
Armature
5.
Which equipment converts mechanical energy to electrical energy?
a)
D.C. motor
b)
Generator
c)
Transformer
d)
A.C. motor
6.
What is the general electrical symbol?
a)
Switch
b)
Resistor
c)
Fuse
d)
Capacitor
7.
Which accessary acts as switch and fuse?
a)
Isolater
b)
MCB
c)
Fuse
d)
Switch
8.
What is the purpose of LVDT?
a)
Measure current
b)
Measure temperature
c)
Measure voltage
d)
Measure displacement
9.
What is relation or I,V,R according to the Ohm’s Law?
a)
I = V/R
b)
I = R/V
c)
I = VRI
d)
I = IRV
10.
What is the name of the device used to provide inductance in a circuit?
a)
Volt meter
b)
Ammeter
c)
Inductors
d)
Solenoid
11.
Which electrical device detect the fault indication automatically?
a)
Relay
b)
Thermostat
c)
Intermediate switch
d)
Limit switch
12.
What is the name of device?
a)
MCB
b)
ELCB
c)
Relay
d)
Thermostat
13.
What is the expansion of LVDT in sensor?
a)
Linear Variable Differential Transformers
b)
Linear Various Differential Transformer
c)
Linear Variedly Differential Transformer
d)
Low Variable Differential Transformers
14.
What is the name of the electro mechanical device having insulated wire wound over a solid iron core?
a)
Motor
b)
Solenoid
c)
Transformer
d)
Inductor
15.
Which rule determines the direction of motion of the conductor in D.C. motor?
a)
Fleming's right hand rule
b)
Fleming's left hand rule
c)
Marewells right hand grip rule
d)
Cork's screw rule
16.
Which law states the working principle of the generator?
a)
Lenz's law
b)
Ohm's law
c)
Faraday's law of electro magnetic induction
d)
Kirchhoff's law
17.
What is the component have the same physical dimensions of MCBs but cannot be used for automatic tripping?
a)
Fuse
b)
Isolator
c)
Starter
d)
Relay
18.
Which is the technology used by photo electric sensors for sensing the target?
a)
Inductive
b)
Capactive
c)
Photo electric
d)
Ultra sonic
19.
Which is the quantity being measured by the strain gauge?
a)
Vibration
b)
Temperature
c)
Pressure
d)
Sound
20.
What is the name of the device used for protecting a circuit against excess current?
a)
Fuse
b)
Switch
c)
Alarm
d)
Resistor
21.
What is the letter symbol for inductance?
a)
L
b)
I
c)
F
d)
P
22.
What is the sensing range of photo electric proximity sensor?
a)
4mm - 40mm
b)
3mm - 60mm
c)
1mm - 60mm
d)
3mm - 30mm
100 %
