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5 Day TNAU Training Programme on Energy and Water Audit

Total questions: 15

Worksheet time: 16mins

Name
Class
Date
1.

Find the Passive Energy source

a)

DIESEL GENERATOR

b)

ROOF TOP SOLAR

c)

GRID

d)

UPS

2.

Select the energy efficient tube light

a)

T5, 4ft, 2100 Lumens

b)

T8, 4Ft 2400 Lumens

c)

T12, 4Ft, 2500 Lumens

d)

None of the Above

3.

With the humidification system, a spinning mill is able to ___________

a)

To maintain RH

b)

Exhaust the Heat

c)

Control Temperature Rise

d)

All the Above

4.

Find the Odd one out?

a)

kW / Cfm

b)

kCal/kWh

c)

kWh/kVAh

d)

Unit/Kg

5.

Air consumption in a weaving mill is 3000CFM. Select the best technology Air compressor to reduce air consumption of the weaving mill

a)

Reciprocating

b)

Screw

c)

Centrifugal

d)

None of Them

6.

A 2.0 MVA transformer is operated with 1500kVA or 75% Load and 0.8 Power factor. The transformer load will be ______% after implementation of energy efficient measures you have suggested to the mill.

a)

75%

b)

60%

c)

100%

d)

No Change

7.

A VFD Driven centrifugal pump is operated now at 45Hz. The previous consumption was 100kW during 50Hz operation. Calculate the power savings in kW?

a)

49kW

b)

27kW

c)

5kW

d)

None Of Them

8.

The Solar Irradiance of a 1.9 M x 1.0 M sized solar PV Panel rated to 380Wp is ______W/m2

a)

190 W/m2

b)

722 W/m2

c)

200 W/m2

d)

None of them

9.

The shown feeder has 8 Volts drop. An extra cable has helped to recover 4 Volt / Phase. How much is the power saving

a)

0.8kW

b)

2.4kW

c)

1.6kW

d)

None of the Above

10.

Energy consumption of a 24 X 7 working spinning mill was 14.40 Lakh units in April. Of the total consumption, 3% goes to air compressor. The air - compressor consumes _______kW power.

a)

166.67

b)

1440

c)

60.0

d)

None

11.

Total Energy consumption of the mill was 10.0 lakh units last month. 40s converted single yarn production was 2.0 Lakh kg. TFO and Ring doubling process consumed 1.5 and 0.5 lakh units respectively. Calculate the 40s converted ring spun yarn UKG (SEC) of the mill.

a)

5.0

b)

2.5

c)

4.0

d)

3.5

12.

Compressed air sourced from 3 Air compressors is 500 CFM and their SEC respectively are 0.2, 0.22 and 0.18 kW/CFM. New air compressor with 0.16kW/CFM costs the mill INR 3.2 Million. Assume 8000Hrs operation in a year and energy cost of Rs 10 / Unit. The payback will be _____ years.

a)

1

b)

2

c)

3

d)

4

13.

The efficiency of air blower system is_______

a)

18%

b)

36%

c)

50%

d)

90%

14.

Calculate per spindle consumption in Watts of a 1200 spindle ring frame machine; Input power of the motors is given below

i. 55kW main motor = 50kW

ii 9.3kW Compact motor = 5.0kW

iii 5.0 kW Pneumafil fan motor = 3.3kW

iv 2.2kW OHTC = 1.7kW

a)

500

b)

5000

c)

50

d)

5

15.

A mill last month purchased 2.0 Lakh units from TANGEDCO at Rs. 8/Unit, 4 Lakh units at Rs.5/Unit Through IEX. Wheeling charges of Rs.1 / unit is paid for IEX power. The in house solar plant produced 2.0 Lakh units and it costs the Mill Rs.4/Unit. Find the Mean Cost of 1 unit.

a)

Rs 5.50

b)

Rs 6.00

c)

Rs 6.50

d)

Rs 7.50