A company has to choose between two projects whose cash flows are as indicated below; Project 1: i. Investment – Rs. 15 Lakhs ii. Annual cost savings – Rs. 4 lakhs. iii. Bi-annual maintenance cost – Rs. 50,000/- iv. Reconditioning and overhaul during 5th year: 6 lakhs v. Life of the project – 8 years vi. Salvage value – Rs. 5 lakhs Project 2: vii. Investment – Rs. 14 Lakhs viii. Annual cost savings – Rs. 3.5 lakhs. ix. Annual Maintenance cost – Rs. 20,000/- x. Reconditioning and overhaul during 4th year: 5 lakhs xi. Life of the project – 8 years xii. Salvage Value- 2 lakhs Which project should the company choose? The annual discount rate is 12

 A company has to choose between two projects whose cash flows are as indicated 

below;

Project 1: 

i. Investment – Rs. 15 Lakhs

ii. Annual cost savings – Rs. 4 lakhs.

iii. Bi-annual maintenance cost – Rs. 50,000/-

iv. Reconditioning and overhaul during 5th year: 6 lakhs

v. Life of the project – 8 years

vi. Salvage value – Rs. 5 lakhs

Project 2:

vii. Investment – Rs. 14 Lakhs

viii. Annual cost savings – Rs. 3.5 lakhs.

ix. Annual Maintenance cost – Rs. 20,000/-

x. Reconditioning and overhaul during 4th year: 5 lakhs

xi. Life of the project – 8 years

xii. Salvage Value- 2 lakhs

Which project should the company choose? The annual discount rate is 12
by

1 Answer

Answer :

Year Project 1 Project 2

Outgo Saving NPV Outgo Saving NPV

0 15.0 0 =-15.0 14.0 0 = -14

1 0 4.0 = (4 / (1+.12)1

= 3.571

0.2 3.5 = (3.3 / (1+.12)1

= 2.95

2 0.5 4.0 = (3.5 / (1+.12)2

= 2.79

0.2 3.5 = (3.3 / (1+.12)2

= 2.63

3 0 4.0 = (4 / (1+.12)3

= 2.84

0.2 3.5 = (3.3 / (1+.12)3

= 2.35

4 0.5 4.0 = (3.5 / (1+.12)4

= 2.22

5 3.5 = (-1.5 / (1+.12)4

= -0.95

5 6 4.0 = (-2 / (1+.12)5

= -1.13

0.2 3.5 = (3.3 / (1+.12)5

= 1.87

6 0.5 4.0 = (3.5 / (1+.12)6

= 1.77

0.2 3.5 = (3.3 / (1+.12)6

= 1.67

7 0 4.0 = (4 / (1+.12)7

= 1.81

0.2 3.5 = (3.3 / (1+.12)7

= 1.49

8 0.5 9 (4+5) = (8.5 / (1+.12)8

= 3.43

0.2 5.5 

(3.5+2)

= (5.3 / (1+.12)8

= 2.14

NPV = + 2.301 @12% = + 0.15
by

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Last Answer : c) 4

An oil fired boiler is retrofitted to fire coconut shell chips. Boiler thermal efficiency drops from 82% to 70%. What will be the percentage change in energy consumption to generate the same output a) 12% increase b) 14.6% increase c) 17.1% decrease d) 17.1% increase

Description : An oil fired boiler is retrofitted to fire coconut shell chips. Boiler thermal efficiency drops from 82% to 70%. What will be the percentage change in energy consumption to generate the same output a) 12% increase b) 14.6% increase c) 17.1% decrease d) 17.1% increase

Last Answer : d) 17.1% increase

An earth moving equipment costs Rs. 5,00,000 and has an estimated life of 10 years and a salvage value of Rs. 50,000. What uniform annual amount must be set aside at the end of each of the 10 years for replacement if the interest rate is 8% per annum and if the sinking fund factor at 8% per annum interest rate for 10 years is 0.069? (A) Rs. 31050 (B) Rs. 34500 (C) Rs. 37950 (D) Rs. 5000

Description : An earth moving equipment costs Rs. 5,00,000 and has an estimated life of 10 years and a salvage value of Rs. 50,000. What uniform annual amount must be set aside at the end of each of the 10 years for replacement if ... years is 0.069? (A) Rs. 31050 (B) Rs. 34500 (C) Rs. 37950 (D) Rs. 5000

Last Answer : (A) Rs. 31050

Assume CO2 equivalent emissions by the use of a 60 W incandescent lamp are of the order of 60 g/hr. If it is replaced by a 5 W LED lamp then the equivalent CO2 emissions will be a) nil b) 5 g/hr c) 12 g/hr d) 300 g/hr

Description : Assume CO2 equivalent emissions by the use of a 60 W incandescent lamp are of the order of 60 g/hr. If it is replaced by a 5 W LED lamp then the equivalent CO2 emissions will be a) nil b) 5 g/hr c) 12 g/hr d) 300 g/hr

Last Answer : b) 5 g/hr

An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the payback time? (A) 5 years (B) 7 years (C) 12 years (D) 10 years

Description : An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the payback time? (A) 5 years (B) 7 years (C) 12 years (D) 10 years

Last Answer : (B) 7 years

Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge stream is mixed with superheated steam at 400 0C, 1 atm and specific volume of 3.11 m 3 /kg. Calculate the amount of superheated steam at 300 0C produced and the volumetric flow rate of the 400 0C steam.

Description : Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C  and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge ... amount of superheated steam at 300 0C produced and the volumetric flow rate of the  400 0C steam.

Last Answer : Solution 1. Mass balance of water 1200 + m1 = m2 ………………………………………… (1) …………………….1 mark 2. Energy balance (1200 kg/h)(2676 kJ/kg) + m1(3278 kJ/kg)

The rate of energy transfer from a higher temperature to a lower temperature is measured in a) kcal b) Watt c) Watts per second d) none of the above.

Description : The rate of energy transfer from a higher temperature to a lower temperature is measured in a) kcal b) Watt c) Watts per second d) none of the above.

Last Answer : b) Watt

Which of the following criteria is a responsibility of DesignatedConsumer? a) designate or appoint an accredited Energy Auditor b) adhere to stipulated energy consumption norms and standards as notified c) submit the status of energy consumption information every three years d) conduct energy audit through a certified energy auditor periodically

Description : Which of the following criteria is a responsibility of DesignatedConsumer? a) designate or appoint an accredited Energy Auditor b) adhere to stipulated energy consumption norms and standards ... information every three years d) conduct energy audit through a certified energy auditor periodically

Last Answer : b) adhere to stipulated energy consumption norms and standards as notified

Answer the following S. No Statement Chose the correct answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the blanks 3 Non Contact Infrared Thermometer cannot measure temperature of objects placed in hazardous places True/False 4 To measure the RPM of a Flywheel, ______ type of RPM meter is used and for a visible shaft-end _______ type of RPM meter is used. Fill in the blanks 5 In a switch yard, _____ instrument is used to identify the loose joints and terminations Fill in the blanks 6 Every Designated Consumer shall have its first energy audit conducted by ________ Energy Auditor within ______ months of

Description :  Answer the following S. No Statement Chose the correct  answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM  meter is used and for a visible shaft-end _______ type of  RPM meter is used.

Last Answer : Sr  No Statement Chose the correct  answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and  SO2 True/False False 2 Ultrasonic Flow Meter uses the  principle of____& ____ ... ]  10 In a gasification system the  reduction zone is above the  combustion zone True/False False

Which part of our Constitution envisages a three tier system of Panchayat? (1) Part IX (2) Part X (3) Part XI (4) Part XII

Description : Which part of our Constitution envisages a three tier system of Panchayat? (1) Part IX (2) Part X (3) Part XI (4) Part XII

Last Answer : (1) Part IX Explanation: Part IX of the constitution under article 243-C deals with Composition of Panchayats

Law relating to agency is contained in ……. Chapter of the Indian Contract Act. a. Chapter IX b. Chapter X c. Chapter XI d. Chapter XII

Description : Law relating to agency is contained in ……. Chapter of the Indian Contract Act. a. Chapter IX b. Chapter X c. Chapter XI d. Chapter XII

Last Answer : b. Chapter X

PEP = (RYEE – current year energy)/RYEE = (23011 – 23834)/23011 = (-) 0.0369 ie (-) 3.7 % …………………….1.5 marks Since the PEP is negative, it implies that the energy conservation measure did not yield reduction in energy consumption, action to be taken to improve the plant performance.

Description : A manufacturing industry plans to improve its energy performance under PAT through  implementation of an energy conservation scheme. After implementation, calculate the  Plant Energy Performance (PEP) with 2015-16 as the ... 34,000 T,   Reference year (2015-16 ) Energy consumption - 27,200 MWh.

Last Answer : Production factor (PF) = 28750/34000 = 0.846 …………………….1 mark Ref year equivalent energy (RYEE) = Ref Year Energy Use (RYEU) x PF   = 27,200 x 0.846= 23011MWh