18/A/C/S-2/4/E
P-2
33/231
ELECTRICIAN
(PRACTICAL)
SEMESTER-II
TIME: 8 Hrs.
MARKS: 270
Note: Attempt all questions.

1.Explain and perform the measurement of voltage and current by C.R.O.?                                                       (90)

2. Study of bridge rectifier and calculation of bridge rectifier's output signal parameters with the help of C.R.O.   (80)

3. Explain and make the Extension and test board.           (50)

ELECTRICIAN, ELECTROPLATOR, LIFT MECHANIC/LIFT& ESCALATOR
MECHANIC, WIREMAN
(PRACTICAL)
SEMESTER-
MARKS: 270
Note: Attempt all questions. All question carry equal marks.

1. Plot and demonstrate the working characteristics of PN junction diode and Zener diode.

2. Demonstrate and draw the connection diagram of staircase lighting arrangement using the two way switch.

3. Demonstrate the operation and mechanism of ELCB.
                                      Or
   Verify Kirchoff's current and voltage laws.

ELECTRICIAN
(PRACTICAL)
SEMESTER -II
(SESSION 2017-2018) - NSQF LEVEL-5
TIME: 8 HRS.
MARKS: 270
Note: Attempt Any three questions. All questions carry equal marks.

1.  Assemble house wiring including carthing for 1-phase energy, mater MCB. ceilina fan, tobe ighi, three pin sockel and a lamp operated from two different positions.    Demonstrate the basics fonctional study of components used in house wiring.

2. Prepare pipe / plate earthing and measure earth resistance by earth tester/ megger.

17IA/C/S-2/4/E
33/231
ELECTRICIAN
(PRACTICAL)
SEMESTER-II
TIME: 8 HRS.
MARKS: 270
Note: Attempt all questions.

1. Make a circuit of a full wave center tap rectifier on a breadboard and see the
waveforms on C.R.O at various points and write down their values.

2.To determine the efficiency of D.C. shunt motor and its performance characteristics.

3.Take two exhaust fans and do wiring in such a way that only one fan is ON at any
given time or both are OFF using appropriate switches.

ELECTRICIAN
(PRACTICAL)
SEMESTER-II
TIME: 8 Hrs.
Note: Attempt all questions.

1. Study of full wave bridge rectifier and calculation of full wave bridge rectifer's outgut
signal parameters with CRO.

2. Test the following test of a given single phase transformer.

a) Open Circuit Test
b) Short Circuit Test
c) Efficiency of Transformer. By direct loading method/ By calculating the toal losses.

3. Describe the starting of shunt motor by a four point starter with diagram and start the motor

ELECTRICIAN
(PRACTICAL)
SEMESTER-II
TIME: 8 Hrs.
MARKS: 270
Note: Attempt all questions. All question carry equal marks.

 1.  Test and study the Half Wave and Full Wave rectifier circuits with and without Filter
      Circult. Show the Various Wave Form on CRO.

 2.  Measure the various voltages and currents of a Single-Phase Transformer and find out the
      efficiency & regulation of the transformer.

ELECTRICIAN
(PRACTICAL)
SEMESTER-III
TIME: 8 HRS.
MARKS: 270
Note: Attempt all the questions.
1. Take a dismantled 1-phase capacitor start motor. Make the connections and start it and then  make the connections to run the motor     in opposite direction.
 

2. Perform an experiment to soft start 31 induction motor by star-delta method.
 

3. Do skinning of 3_^1/2 core cable and fix gland and thimbles and make connection between the
power/control panel and 3-phase induction motor.

ELECTRICIAN
(PRACTICAL)
SEMESTER-m
TIME: 8 Hrs.
MARKS: 270
Toter Atempt all the question Aitquestions carry eqral marks

1. Study of voltage building of the alternator and draw the load characteristics.
 

2. Explain the construction working and operation of a syrichronous motor.

3. Explain and draw the connection and working of autotransformer starter.

*****

SEMESTER-II
TIME: 8 HRS.
MARKS: 270
Note: Attempt all the questionms. All questions carry equal marks.
1. Wind coil and make e transformer of primary 230 volts and secondary 0-12 vots
    @200 mA.
 

2 Study any identify the type AC motor. Measure slip and power factor at different loads  

3. Study the working abd operation of Stepper motor.

ELECTRICIAN/ELECTROPLATER/LIFT MECHANIC/LIFT & ESCALATOR
MECHANIC/WIREMAN
(PRACTICAL)
SEMESTER -I
TIME: 8 HRS.
MARKS: 270
Note: Attempt all questions. All questions carry equal marks.

1.   Verify the characteristics of an AC circuit having resistance and Inductance in series.

2. i) Identify and name the active, & passive components from the given set of componeats.
      Write their marked values.

ELECTRICIAN
(PRACTICAL)
SEMESTER-IV
MARKS: 270
TIME: 8 HRS.
Note: Attempt all questions.
(100)
1. Assemble a completely dismantled industrial electric iron and test it.     (100)

2. To study the SCR based DC motor speed control drive. Measure the speeds of DC motor
using tocho-generator.  (100)

3.Test the dielectric strength of transformer oil.    (70)

ELECTRICIAN/ ELECTROPLATOR/ LIFT MECHANIC LIFT & ESCALATOR
MECHANIC/ WIREMAN
(PRACTICAL)
SEMESTER –I
(Session 2017 -2018)- NSQF LEVEL 5
TIME: 8 HRS.
MARKS: 270
Note: Attempt all questions. All questions carry equal marks.
1.Demonstrate the use of fire extinguisher in case of electric fire.

2.Identify various types and main parts of cables and measure conductor size using SWG and micro-meter. Prepare a straight joint of cables.

3.Measure the value of an unknown resistance using wheat-stone bridge.

TIME: 8 HRS.
MARKS: 270
Note: Attempt all the questions. All questions carry equal marks.

1. Study, test and repair a domestic mixer grinder for electrical faults.

2. (i) Bind a pin insulator from the top groove.
    (ii) Bind a shackle insulator from its neck for intermediate pole conductor.

3. (i) Test the insulation resistance of the given electric cable using megger.
    (ii) Test the electrical house wiring for open circuit, short circuit and leakage with the help of a magger. 

17/B/C/S-4/4/E
P-4
033/231
ELECTRICIAN
(PRACTICAL)
SEMESTER-IV
TIME: 8 HRS.
MARKS: 270
Note: Attempt all questions.
1. Explain and perform the testing capability of different electric based appliances.(120)
a) Electric iron    b) Geyser    c) Heater

2. Explain the working and layout of Hydro power plant with neat diagram. (80)

3.Test the Insulation resistance of cable, Study the straight joint of different type of underground cable. (70)

1. ट्रांसफॉर्मर लैमिनेशन्स .......... के द्वारा एक-दूसरे से विद्युत-रोधी होते हैं। 

•  अबरक पट्टी 
•  वार्निश के पतले आवरण
•  पेपर
•  इनमें से कोई

वार्निश के पतले आवरण

  2. एक BCD अंक को स्टोर करने के लिए इस्तेमाल बिटों की संख्या है? 

•  8
•  4
•  1
•  2

4

  3. आमतौर पर पॉवर ट्रांसफॉर्मर का .......... के चारों ओर अधिकतम दक्षता रखने के लिए डिजाइन किया जाता है?

1. एक वाइंडिंग में अनेक स्लॉट होते हैं, ध्रुवों की संख्या से अधिक होते हैं तब यह वाइंडिंग कहलाती है?

•  केन्द्रित (concentrated) वाइंडिंग
•  वितरित (distributed) वाइंडिंग
•  पूर्ण पिच (full pitch) वाइंडिंग 
•  इंटिग्रेटेड स्लॉट वाइंडिंग

वितरित (distributed) वाइंडिंग

2. 250 rpm पर रोटेट कर रहे तथा 8 ध्रुवों वाले एक अल्टरनेटर द्वारा उत्पन्न वोल्टेज की आवृति होगी?

•  60 Hz
•  50 Hz 
•  25 Hz
•  16 2/3 Hz

16 2/3 Hz

1. प्रतिरोध R के एक तार की लम्बाई तथा क्रॉस-सेक्शन दोनों दोगुणा हो जाता है तो इसका प्रतिरोध होगा?

• 0.5 R
• R
• 2R
• 4R
उत्तर. R

2. निम्नलिखित में से कौन-सा एक डायोड के द्वारा परफॉर्म किए जाने वाले कार्यों में से एक है?

• फिल्टर
• एम्प्लीफायर
• रेक्टिफायर
• इनवर्टर
उत्तर. रेक्टिफायर

3. 200 W, 200 V लैम्प का प्रतिरोध होता है?

• 100 ओह्म
• 200 ओह्म
• 400 ओह्म
• 800 ओह्म
उत्तर. 800 ओह्म

4. निम्नलिखित में से कौन-सा एक श्रेणी परिपथ में कुल निर्धारण करता है?

Trade Theory Semester 2 JULY 2018

1. Pimary winding of a tranaformer will be short circuited if-

a) IC supply is applied

b) AC aupply is applied

c) Input impedance is increased

d) All of these

2. The name given to the transformer whose induced secondary voltage is same as the applied primary voltage is________________

a) Auto Transformer

b) Current Transformer

c) Constant Voltage Transformmer

d) Isolation Transformer

3. A transformer is rated in-

a) KW

b) KVAr

Choose the correct answer:
1. The forbidden energy gap for germanium is -
a) 0.3 eV
b) 3.5 e
c) 0.72 eV
d) 1.1 eV
2. The bandgap of silicon at room temperature is -
a)1.3 eV
b) 0.7 eV

c)1.1 eV
d) 1.4 eV
3. The earth wirs are made of -
a) Copper
b) Aluminium
c)  Iron
d) Galvanized stranded stee

4. The rating of fuse is always expressed in -
a) Volts
b) Amperes
c) Ampere-volts
d) Ampere hours