Recent questions tagged audit

Description : A project activity has several components as indicated below; S.  No. Activity Preceded by Duration (in  Weeks) 1 A - 8 2 B A 6 3 C A 12 4 D B 4 5 E D 5 6 F B 12 7 G E& F ... H 5 10 J I & G 6 d. Prepare a PERT chart, estimate the duration of the project and identify the  critical path.

Last Answer : PERT Diagram based on Activity on Arrow  .  E  D 5 G B 5 9 J, 6 A 6 F,12 I ,5 8 c 12 H 8 OR  PERT Diagram based on Activity on Node …………………….6 marks a. Critical Path: A-B-F-G-J …………………….1 mark  b. Estimated Project Duration: 41 weeks

Description :  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 ... years xii. Salvage Value- 2 lakhs Which project should the company choose? The annual discount rate is 12

Last 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 ... (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

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

Description : Explain the following a) Dry Bulb Temperature and Wet bulb Temperature b) Maximum Demand and Power Factor c) Gross Calorific Value & Net Calorific Value d) 5S & Return of Investment (ROI) e) CUSUM

Last Answer : a) Dry Bulb Temperature and Wet bulb Temperature Dry bulb Temperature is an indication of the sensible heat content of air-water vapour  mixtures Wet bulb Temperature is a measure of ... of capital cost. This is a broad indicator of the annual return expected from initial capital investment

Description : The energy consumption and production patterns in a chemical plant over a 9 month period is provided in  the table below; Month 1 2 3 4 5 6 7 8 9 Production in Tonnes / month 493 ... and give your inference on the  result ? ( consider 9 month data for evaluation for predicted energy consumption)

Last Answer : It is required to use the equations Y= mX + C and  nC + mΣX = ΣY  cΣX + mΣX2 = ΣXY Month X =  Production in  Tonnes /  month Y =Energy  Consumption MWh  /month  X 2 XY 1 493 78.2 ... 73.7 54756 17240.63 8 239 64.4 57121 15402.96 9 239 72.1 57121 17228.98 3387 665.3 1410683 253221

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)

Description : List down any five Designated Consumers notified under the Energy Conservation Act.

Last Answer : (1) Aluminium, (2) Cement, (3) Chloralkali, (4) Fertiliser, (5) Steel, (6) Pulp & Paper,  (7)Thermal Power Plants, (8) Textile, (9) Railways.

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

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

Description : In a 100 TPD Sponge Iron plant, the sponge iron is fed to the Induction melting furnace,  producing molten steel at 88% yield. The Energy consumption details are as follows: Coal Consumption : 130 ... molten  steel (product). 3. Total Energy Consumption of Plant in Tons of Oil Equivalent (TOE )

Last Answer :  a) Specific Energy Consumption of Induction Melting Furnace  Molten Steel Production from the Induction melting furnace per day  = 100 x 88/100 = 88 TPD Total Energy Consumption of the Plant = 82400 kWh ... mark c) Total Energy consumption of Plant in ToE  = 655864000/107  = 65.586 ToE

Description : In a heat treatment shop, steel components are heat-treated in batches of 80 Tons. The  heat treatment cycle is as follows;  Increase temperature from 30 OC to 850 OC in 3 hours.  ... efficiency of 80%, for same requirement. The investment towards installation of  the new furnace is Rs. 50

Last Answer : Quantity of steel treated per batch - 80 Tons a. Efficiency of Furnace: Useful heat supplied to steel - 80000 x 0.12 x (850 - 30)   = 7872000 kcal/batch .1 mark Total heat ... = Rs. 64400/batch Efficiency of new LPG furnace - 80% Heat supplied in new LPG furnace - 7872000/0.8

Description : Give a short description about Availability Based Tariff (ABT).

Last Answer : Introduction of availability based tariff(ABT) and scheduled interchange charges for  power was introduced in 2003 for interstate sale of power , have reduced voltage and  frequency fluctuation  It ... payment of dues , non-payment of prescribed  charges will be liable for appropriate action.

Description : Explain PAT scheme and why it is a market based mechanism?

Last Answer : Perform, Achieve and Trade (PAT) Scheme is a market based mechanism to  enhance cost effectiveness of improvements in energy efficiency in energy-intensive  large industries and facilities, through certification of ... and Steel 6. Pulp and Paper 7. Textile 8. Thermal Power Plant

Description : n a chemical factory where dyes are made, wet cake at 30 OC consisting of 60% moisture  is put in a dryer to obtain an output having only 5% moisture, at atmospheric pressure. In  each batch about 120 ... dryer and the dryer efficiency  is 80%. Latent heat of steam at 4 kg/cm2 is 520 kcal/kg.

Last Answer : Given that   Qty of material dried per batch - 120 Kgs  Moisture at inlet - 60% a. The quantity of moisture removed per batch.  Water quantity in a wet batch - 120 x 0.6 = 72 Kgs.  Quantity of bone dry ... - 48/0.95 = 50.5 Kgs.  Equivalent water in a dry batch - 50.5 - 48 = 2.5 Kgs.

Description : Explain Time of Day (TOD) Tariff and how it is beneficial for the power system and  consumers?

Last Answer :  In Time of the Day Tariff (TOD) structure incentives for power drawl during off- peak hours and disincentives for power drawl during peak hours are built in. Maelectrical utilities like to ... line losses and peak load incident and utilities power procurement charges by  reduced demand

Description : n project financing ,sensitivity analysis is applied because a) almost all the cash flow methods involve uncertainty b) of the need to assess how sensitive the project to changes in input parameters c) what if one or more factors are different from what is predicted d) all the above situation

Last Answer : d) all the above situation

Description : The contractor provides the financing and is paid an agreed fraction of actual savings  achieved. This payment is used to pay down the debt costs of equipment and/or services.  ... contract b) extended technical guarantee/service c) performance Contract d) shared savings performance contrac

Last Answer : d) shared savings performance contrac

Description : Which one is not an energy consumption benchmark parameter? a) kcal/kWh of electricity generated b) kg/ oC. c) kW/ton of refrigeration d) kWh/kg of yarn

Last Answer : b) kg/ oC.

Description : Which of the following is not applicable to liquid fuels? a) the viscosity of a liquid fuel is a measure of its internal resistance to flow. b) the viscosity of all liquid fuels decreases with ... the viscosity of liquid fuels, higher will be its heating value d) viscous fuels need heat tracing

Last Answer : c) higher the viscosity of liquid fuels, higher will be its heating value

Description : Which of the following is false? a) electricity is high-grade energy b) high grade forms of energy are highly ordered and compact c) low grade energy is better used for applications like melting of metals rather than heating water for bath

Last Answer : c) low grade energy is better used for applications like melting of metals rather than heating water for bath

Description : An indication of sensible heat content in air-water vapour mixture is a) wet bulb temperature b) dew point temperature c) density of air d) dry bulb temperature

Last Answer : d) dry bulb temperature

Description : To maximize the combustion efficiency, which of the following in the flue gas needs to be done? a) maximize O2 b) maximize CO2 c) minimize CO2 d) maximize CO

Last Answer : b) maximize CO2

Description : The energy conversion efficiency of a solar cell does not depend on a) solar energy insolation b) inverter c) area of the solar cell d) maximum power output

Last Answer : b) inverter

Description : A three phase induction motor is drawing 16 Ampere at 440 Volts. If the operating power factor of the motor is 0.90 and the motor efficiency is 92%, then the mechanical shaft power output of the motor is a) 12.04 kW b) 10.09 kW c) 10.97 kW d) None of the above

Last Answer : b) 10.09 kW

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

Description : The component of electric power which yields useful mechanical power output is known as a) apparent power b) active power c) reactive power d) none of the above

Last Answer : b) active power

Description : Which of the following GHGs has the longest atmospheric life time? a) CO2 b) CFC c) Sulfur Hexafluoride (SF6) d) perfluorocarbon (PFC)

Last Answer : d) perfluorocarbon (PFC)

Description : In a manufacturing plant, following data are gathered for a given month: Production - 1200 pieces; specific energy consumption - 1000 kWh/piece; variable energy consumption - 950 kWh/piece. The fixed energy consumption of the plant ... ----- a) 6,000 kWh b)10,000 kWh c) 12,000 kWh d) 60,000 kWh

Last Answer : d) 60,000 kWh

Description : A process electric heater is taking an hour to reach the desired temperature while operating at 440 V. It will take ------- hours to reach the same temperature if the supply voltage is reduced to 220 V. a) 2 b) 3 c) 4 d) 5

Last Answer : c) 4

Description : Which of the following parameters is not considered for external Bench Marking? a) scale of operation b) energy pricing c) raw materials and product quality d) vintage of technology

Last Answer : b) energy pricing

Description : The number of moles of water contained in 36 kg of water is ------------ a) 2 b) 3 c) 4 d) 5

Last Answer : a) 2

Description : A sling psychrometer is used to measure : a) only dry bulb temperature b) only wet bulb temperature c) both a & b d) relative humidity

Last Answer : c) both a & b

Description : The quantity of heat required to raise the temperature of a given substance by 1 oC is known as: a) sensible heat b) specific heat c) heat capacity d) latent heat

Last Answer : specific heat specific heat is the quantity of heat required to raise the temperature of 1 gram substance by 1 oC is

Description : An electric heater consumes 1000 Joules of energy in 5 seconds. Its power rating is: a) 200 W b) 1000 W c) 5000W d) none of the above

Last Answer : a) 200 W

Description : An electric heater draws 5 kW of power for continuous hot water generation in an industry. How much quantity of water in litres per min can be heated from 30oC to 85oC ignoring losses?. a) 1.3 b) 78.18 c) 275 d) none of the above

Last Answer : a) 1.3

Description : 2000 kJ of heat is supplied to 500 kg of ice at 0oC. If the latent heat of fusion of ice is 335 kJ/kg then the amount of ice in kg melted will be a) 1.49 b) 83.75 c) 5.97 d) None of the above

Last Answer : c) 5.97

Description : The term missing in the following equation (kVA) 2 = (kVA cos phi) 2 + ( ? )2 is a) cos phi b) sin phi c) kVA sin phi d) kVArh

Last Answer : c) kVA sin phi

Description : Which of the following statements is correct regarding float' for anactivity? a) Time between its earliest start time and earliest finish time b) Time between its latest start time and latest ... start time and earliest finish time d) Time between earliest finish time and latest finish time

Last Answer : d) Time between earliest finish time and latest finish time

Description : The producer gas basically consists of a) Only CH4 b) CO & CH4 c) CO, H2 & CH4 d) Only CO & H2

Last Answer : c) CO, H2 & CH4

Description : The electrical power unit Giga Watt (GW) may be written as a) 1,000,000 MW b) 1,000 MW c) 1,000 kW d) 1,000,000 W

Last Answer : b) 1,000 MW

Description : The power generation potential in mini hydro power plant for a water flow of 3 m3 /sec with a head of 14 meters and with a system efficiency of 55% is a) 226.6 kW b) 76.4 kW c) 23.1 kW d) none of the above

Last Answer : a) 226.6 kW

Description : is a statistical technique which determines and quantifies the relationship between variables and enables standard equations to be established for energy consumption. a) linear regression analysis b) time-dependent energy analysis c) moving annual total d) CUSUM

Last Answer : a) linear regression analysis

Description : The retrofitting of a variable speed drive in a plant costs Rs 2 lakh. The annual savingsis Rs 0.5 lakh. The maintenance cost is Rs. 5,000/year. The return on investment is a) 25% b) 22.5% c) 24% d) 27.5%

Last Answer : b) 22.5%

Description : Which of the following has the highest specific heat? a) lead b) mercury c) water d) alcohol

Last Answer : c) water

Description : The process of capturing CO2 from point sources and storing them is called . a) carbon sequestration b) carbon sink c) carbon capture d) carbon adsorption

Last Answer : a) carbon sequestration

Description : As per Energy Conservation Act, 2001, a BEE Certified Energy Manger is required to be appointed/designated by the a) state designated agencies b) all industrial consumers c) designated consumers d) electrical distribution licensees

Last Answer : c) designated consumers

Description : The internal rate of return is the discount rate for which the NPV is a) positive b) zero c) negative d) less than 1

Last Answer : b) zero

Description : 1 kg of wood contains 15% moisture and 5% hydrogen by weight. How much water is evaporated during complete combustion of 1kg of wood? a) 0.6 kg b) 200 g c) 0.15 kg d) none of the above

Last Answer : b)200 g

Description : Energy sources which are inexhaustible are known as a) commercial energy b) primary energy c) renewable energy d) secondary energy

Last Answer : c) renewable energy