JBANERJEE SYSTEMS Pvt Ltd. Odisha Question Paper Cum Answer Sheet ELE 101 JB 2

MODULAR EMPLOYABLE SKILLS ELE 101For Assessor:AssessmentAreas

SafetyAwareness

Technicalskills

Use of tools andmaterials

Attitude Theory Marks(Max 50)

PracticalMarks (Max150)

Grades: S/A/N

S-Significant, A- Average N – Nil

Assessor’s Signature

Name: Date : 16.02.14 Date: 07.02.14

Father’s Name: Time: 30 min.Theory: Full Marks : 50, Pass Marks : 20 Choose the correct answer in each question.

1. Which of the following materials is a good conductor?A Mica B Copper C Rubber D Procelain

2. Soldering is done on joints to improve the....A mechanical strength B resistivity C good appearance D conductivity.

3. The earth conductor provides a path to ground for....A leakage current B over current C high voltages D circuit current.

4. The fuse operates in the principle ofA Magnetic effect B Electrostatic effect C Heating effect D Chemical effect

5. One of the following need not be earthed.....

A Ceiling fan B Table fan C Body of automatic electric waterheaterD Exhaust fan.

6. When using a Megger with two terminals, you should avoid touching .....A Positive terminal B negative terminal C both terminals D connecting rods

7. The method to measure the energy consumed by an electric heater is .....A a watt-meter and a stopwatch B Kwh meterC a voltmeter and an ammeter D an ammeter and a stopwatch

8. The unit of electrical energy is measured in....A volt-ampere B kW C kWh D kVA

9. The general symbol for an integrating meter is .....

10. Normally fuse must be provided in a circuit.....A at the end of the circuit B at the beginning of the circuit

C at the middle of the circuit D at both the beginning and the end of the circuit

11. The total resistance of a 45 ohms resistor and a 90 ohms resistor connected in series is.....A 30 ohms B 45 ohms C 67.5 ohms D 135 ohms.

12. A fuse in a circuit provides protection against.....A open circuit B open circuit and short circuitC short circuit and overload D open circuit and overload.

13. Which one of the mathematical expressions is not correct according to Ohm's law?

A I = V.R B R

1r1+ r2 C

21

11

rrR D V = R.I

14. Three resistors are in parallel. The total resistance, RT is....

JBANERJEE SYSTEMS Pvt Ltd. Odisha Question Paper Cum Answer Sheet ELE 101 JB 2

A

321

1111

RRRRT

B RT = R1 + R2 + R3

C D

15. What should be the minimum acceptable value of the insulation resistance?A not less than 0.1 M B not less than 0.5 MC not less than 0.25 M D not less than 1 M

16. A heater draws a current of 8A when connected to a 240V source. What is the resistance value of theheating element in ohms?A 40 B 20 C 30 D 60.

17. A 12 ohms resistor is connected across a 60V DC source. Calculate the current flow through theresistor.A 5A B 4A C 10A D 12A.

18. Four resistors are connected in parallel, 5 ohms, 5 kilo-ohms, 50 kilo-ohms, 5 mega ohms. Theirequivalent resistance will be very near to ....A 4.5 ohms B 4500 ohms C 45000 ohms D 4,500,000 ohms.

19. An electrical circuit that has infinity resistance is called as circuit.

A an open B a short C a ground D either B or C20 In a series set of 41 lamps the centre lamp (21st lamp) is burnt out, then the same set is connected to the

rated supply. The result will be....A only the first 20 lamps burns B only the last 20 lamps burnsC except the 21st lamp, all the other lamps burn D none of the 41 lamps burns

21.. What is the effective value of the illustrated sine wave?

A 380 V B 537 V C660 V D1074 V22. A voltmeter reads 10 V A C. what is the effective voltage?A Higher B Lower C same D 10 % higher23. A moving-iron ammeter reads 10 A. What is the peak value of current?

A 7.07 A B 1.414 A C 70.7 A D 14.1 A24. In which circuit are the resistances correctly connected in series?

25. How are the three resistors connected to the source in the figure?

A In series B In series and parallel C In parallel D Network.

Practical Questions (Total Marks: 150, Pass Marks 90) Proof of practical done should be attached with theanswer sheet. Please write the process on a separate sheet with appropriate drawing wherever necessary

Assessor: Mr. Sritam Nayak

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T

R1

R1

R1

1R

321

321T RRR

R xR xRR