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 : 105. Energy and production data is useful to calculate…… a) Specific Energy Consumption b) Specific Fuel consumption c) Specific Cost d) None
Last Answer : Specific Energy Consumption
Description : Energy and production data is useful to calculate…… a) Specific Energy Consumption b) Specific Fuel consumption c) Specific Cost d) None
Description : For same power output and same r, as compared to 2- stroke engines, four stroke SI engines have (a) Higher fuel consumption (b) Lower thermal efficiency (c) Highest exhaust temperatures (d) Higher thermal efficiency
Last Answer : Ans :d
Description : Scavenging is usually done to increase the a. thermal efficiency b. speed c. power output d. fuel consumption
Last Answer : ANSWER c. power output
Description : If the performance of diesel engine of different sizes, cylinder dimensions and power rating are to be compared, which of the following parameters can be used for such comparison? (a) Swept volume (b) Air fuel ratio (c) Specific brake fuel consumption (d) Volumetric efficiency
Last Answer : Ans :c
Description : Choke in a I.C. engine is used to control a) Camshaft speed b) Specific fuel consumption c) Air fuel mixture d) Crankshaft speed Ans. c
Last Answer : ans c
Description : What is defined as the ratio of the net electrical power output to the rate of fuel energy input? A. Combustion efficiency B. Thermal efficiency C. Overall efficiency D. Furnace efficiency
Last Answer : Overall efficiency
Description : BEE Energy efficiency ratings are based on a) Savings in cost c) savings in electricity consumption b) Savings in input d) savings in machinery
Last Answer : savings in electricity consumption
Description : According to -energy audit means verification, monitoring, analysis of use of energy including submission of technical report containing recommendations for improving energy efficiency with cost benefit analysis ... act 2001 b) Industrial act 1946 c) Factory act 1947 d) none of act
Last Answer : Energy conservation act 2001
Description : The specific fuel consumption of a petrol engine compared to diesel engine of same H.P is A. same B.more C. less D. unpredictable
Last Answer : ANSWER : B
Description : The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the (A) Fuel cost per unit power generated is less (B) Thermal efficiency of the former is higher (C) Maintenance cost of the former is less (D) None of these
Last Answer : (A) Fuel cost per unit power generated is less
Description : In four stroke engine which of the following is also known as power stroke a. Suction stroke b. Compression stroke c. Expansion stroke d. Exhaust stroke (Ans:c) Measurements of fuel and air ... into IC engine,___________its efficiency A. increase B. decrease C. does not alter D. unpredictable on
Description : An engine produces 10 kW brake power while working with a brake thermal efficiency of 30%. If the calorific value of the fuel used is 40000 kJ/kg, then what is the fuel consumption? (a) 1.5 kg/hour (b) 3 kg/hour (c) 0.3 kg/hour (d) 1 kg/hour
Last Answer : Ans :b
Description : Energy Efficiency Ratio is Equal A. Cooling Capacity (W) + Power consumption (W) B. Cooling Capacity (W) - Power consumption (W) C. Cooling Capacity (W) / Power consumption (W) D. Cooling Capacity (W) X Power consumption (W)
Last Answer : Cooling Capacity (W) + Power consumption (W)
Description : . The ratio of the total amount of heat that equipment can remove from the indoors to travel and amount of energy consumed by the equipment is known as A) Energy performance ratio (EPR). C) Energy efficiency RATIO (EER). B) Energy consumption ratio (ECR). D) None of the above
Last Answer : Energy efficiency RATIO (EER).
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 : Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent. (A) 1 (B) 10 (C) 30 (D) 50
Last Answer : (B) 10
Description : Total primary energy consumption of fuel in the world is lead by a) Coal b) Nuclear c) Hydro d) Oil
Last Answer : coal
Description : 71. Total primary energy consumption of fuel in the world is lead by a) Coal b) Nuclear c) Hydro d) Oil
Description : Heat recovery provides valuable energy sources and ....... consumption. a) Reduce energy b) Increase energy c) Increase fuel d) Reduce fuel
Last Answer : Reduce energy
Description : A waste heat recovery system in industrial process has been key to reduce ....... Consumption. a) Coal b) Fuel c) Biogas d) Oil
Last Answer : Fuel
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 : Discuss the drawbacks of carbureted SI engine on the base of, Air-fuel ratio, fuel consumption, power output, emission.
Last Answer : 1) Air-fuel ratio: - As in SI engine Air-fuel ratio varies from 8:1 to 18.5:1 i.e. from 8 kg of air/kg of fuel to 18.5 kg of air/kg of fuel. Richer or leaner air-fuel ratio limit causes the engine to ... 8 kg of air/kg of fuel to 18.5 kg of air/kg of fuel. So emission is more in SI engine.
Description : State the drawbacks of carbureted (SI) engines on the basis of fuel distribution, emission, power output and fuel consumption.
Last Answer : Drawbacks of carburetted S.I. engine: 1) Fuel distribution- Mal-distribution of charge. 2) Emission- More emissin 3) Power output- Less 4) Fuel consumption - More
Description : The primary objective of energy audit is to determine ways to ______ energy consumption per unit of product output. A. Increase. C) Slightly increase. B. Reduce. D) Change.
Last Answer : reduce
Description : iesel engine has less reserve torque then spark ignition because ∙ Torque-speed curve is governed by volumetric efficiency of fuel pump and engine cylinder ∙ Torque is a function of thermal efficiency ∙ Diesel engine has generally low speed engine ∙ None of the above
Last Answer : ∙ Torque is a function of thermal efficiency
Description : The specific fuel consumption for diesel engine is approximately A. 0.15 kg/kWh B. 0.2 kg/kWh C. 28 kg/kWh D. 0.36 kg/kWh
Description : Specific fuel consumption is defined as a. fuel consumption per hour b. fuel consumed per km. c. fuel consumed per BHP d. fuel consumed per hour per BHP
Last Answer : ANSWER d. fuel consumed per hour per BHP
Description : The specific fuel consumption per BHP hour for petrol engine is approximately a. 0.1 kg b. 0.2 kg c. 0.25 kg d. 0.35 kg
Last Answer : ANSWER c. 0.25 kg
Description : The specific fuel consumption per BHP hour for diesel engine is approximately a. 0.1 kg b. 0.2 kg c. 0.3 kg d. 0.4 kg
Last Answer : ANSWER b. 0.2 kg
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. c) Combustion analyzer. b) Light analyzer. d)Temperature analyzer
Last Answer : Combustion analyzer.
Description : measures oxygen and temperature of the flue gas. a) Fuel efficiency monitor. b) Combustion analyzer. c) Contact thermometer. d) Infrared thermometer.
Last Answer : Combustion analyzer
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. b) Light analyzer. c) Combustion analyzer. d) Temperature analyzer.
Description : The efficiency of a Carnot engine depends on (a) working substance (b) design of engine (c) size of engine (d) type of fuel fired (e) temperatures of source and sink.
Last Answer : Answer : e
Description : 108.is primarily a management technique that uses energy information as a basis to eliminate waste, reduce and control current level of energy use and improve the existing operating procedures. a) Energy monitoring and targeting b) CUSUM c) Specific energy consumption d) Production
Last Answer : Energy monitoring and targeting
Description : 103. What is specific energy consumption. a) energy consumption per month b) Energy consumed per unit of production c) energy consumption per year d) none of the above
Last Answer : Energy consumed per unit of production
Description : 102. To draw a CUSUM chart following data is required a) Monthly energy consumption& monthly production b) Monthly specific energy consumption and turn over c) Monthly profits and production d) None
Last Answer : Monthly energy consumption& monthly production
Description : 69. Level of production may have an effect on specific energy consumption. State a) True b) False
Last Answer : true
Description : 67. To draw a CUSUM chart following data is required a) Monthly energy consumption& monthly production b) Monthly specific energy consumption and turn over c) Monthly profits and production d) None
Description : The reason for supercharging in any engine is to be A. increase efficiency B. increase power C. effect fuel economy D. reduce weight and bulk for a given output
Last Answer : ANSWER : D
Description : Supercharging is done to a. increase the efficiency b. increase the power c. reduce the weight for a given output d. achieve fuel economy
Last Answer : ANSWER c. reduce the weight for a given output
Description : Thermal efficiency is the ratio of: A. Network input to total heat input B. Network output to total heat output C. Network output to total heat input D. Network input to total heat output
Last Answer : Network output to total heat input
Description : The disc is usually the preferred system as it takes and can handle obstacles much easier. A. Less power. C) More power B. Moderate power. D) None of the above
Last Answer : Less power
Description : The injection pressure of ic engine used on tractors is in range of kg/cm2 1. 0-6 2. 60-120 3. 120-200 4. 200-300
Last Answer : ans 3
Description : The productions of indigenous tractors started in india …. a. 1961. c) 1956 b. 1987. d) 1990
Last Answer : 1961
Description : In 1951,the number of tractors in India was... a. 8635. c) 8563 b. 86350. d) 85630
Last Answer : 8635
Description : tractors are almost used in the current generation. a. Petrol c) Electric b. CNG d) Diesel
Last Answer : Diesel
Description : Four wheel tractors are most everywhere. A. Popular. C. Non popular B. Best D. Worst
Last Answer : Popular
Description : India is the largest producer of tractors in the world. A) True B) False