Workshop Calculation

Unit: Systems of unit- FPS, CGS, MKS/SI unit, unit of length, Mass and time, Conversion of units

Fractions : Fractions, Decimal fraction, L.C.M., H.C.F., Multiplication and Division of Fractions and Decimals, conversion of Fraction to Decimal and vice versa. Simple problems using Scientific Calculator.

Square Root : Square and Square Root, method of finding out square roots, Simple problem using calculator.

Core skills enhance knowledge, Analytical ability, problem solving ability, understanding or comprehending drawings & designs and also enriches on scientific principles. At the same time it creates the base for achieving Hard skills. To carry out any skill related task the know how about basic science & related calculation is essential as it helps in scientific way of executing the task.

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

c) KVA

d) KV

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

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)

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)

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)

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.