## Utilization Electrical Energy UEE PSBTE Diploma Paper May 2015                                              SECTION-A

#### Q1. Do as directed.                                                                                                                      15×1=15

1. The resistance of  earth wire should be less or 5 ohms
2. If ‘f’ is the frequency then dielectric loss is proportional to f or Frequency.
3. Size of air conditioner is given in BTUs  or British Thermal Units.
4. The direction of rotation of a DC series motor is  changed by Interchanging Field Terminals.
5. Efficiency of light sources is given in Lumens per Watt.
6. For traction work, the best suitable motor is DC Series motor
7. Coefficient of utilization =Luminous Flux / Luminous emitted by the Source.
8. The welding transformer  must have a High leakage Rectance.
9. Candela is a unit of Luminous Intensity.
10. Human eye is more sensitive to a  wavelength of 550 nm

## SECTION-B

#### Q2. Attempt any five questions.                                                                    5×6=30

1. Draw the block diagram of an electric locomotive and describe the various equipment and accessories.
2. Explain the following terms:-
1. Luminous Intensity
2. Coefficient of
3. Write a short note on Electroplating ?
4. Why DC series motors are are preferred for use on electric traction?
5. Discuss the principle of Induction heating & its application in
6. What is arc welding? Explain MIG & TIG arc welding
7. Draw the circuit diagram of Sodium vapor lamp & explain its
8. Select the motor for the following drivers by giving proper reasoning:
1. Printing Press                       2.Steel Mill

## SECTION-C

#### Q3. Attempt any three questions.                                                       3×10=30

Q3. Explain with the help of a neat sketch working of various parts of Fluorescent lamp.                                                                                                                                                              Q4. (a) State and explain law of Illumination.

(b)Compare the ac & dc arc welding.

Q5. Discuss the concept of plugging & regenerative brake up.

Q6.  Sketch electric block diagram of an electric locomotive & description of various equipment & accessories.

Q7. Describe equipment & accessories used for electroplating plant.

## Utilization Electrical Energy UEE PSBTE Diploma Paper May 2015

### Section a FILL IN THE BLANKS UEe MAY 2015 paper

The resistance of  earth wire should be less or 5 ohms.

If ‘f’ is the frequency then dielectric loss is proportional to f or Frequency.

Size of air conditioner is given in BTUs  or British Thermal Units.

The direction of rotation of a DC series motor is  changed by Interchanging Field Terminals.

Efficiency of light sources is given in Lumens per Watt.

For traction work, the best suitable motor is DC Series motor.

Coefficient of utilization =Luminous Flux / Luminous emitted by the Source.

The welding transformer  must have a High leakage.

Candela is a unit of Luminous Intensity.

Human eye is more sensitive to a  wavelength of 550 nm .

### Section B : ueE PAPER MAY 2015 PAPER

Block diagram of an electric locomotive

1.Luminous Intensity

2.Coefficient of

Short note on Electroplating

Principle of Induction heating & its application

Arc welding

Explain MIG & TIG arc welding

Circuit diagram of Sodium vapor lamp

1. Printing Press                       2.Steel Mill

### Section c : ueE PAPER MAY 2015 PAPER

working of various parts of Fluorescent lamp.

law of Illumination.

Compare the ac & dc arc welding

concept of plugging & regenerative brake up.

Block diagram of an electric locomotive

Equipment & accessories used for electroplating plant