Recent questions tagged emergy

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

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.

The cost of replacement of inefficient chiller with an energy efficient chiller in a plant was Rs. 10 lakh .The net annual cash flow is Rs 2.50 lakh .The return on investment is: a) 18% b) 20% c) 15 % d) none of the above

Description : The cost of replacement of inefficient chiller with an energy efficient chiller in a plant was Rs. 10 lakh .The net annual cash flow is Rs 2.50 lakh .The return on investment is: a) 18% b) 20% c) 15 % d) none of the above

Last Answer : d) none of the above

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 increase in its temperature c) higher the viscosity of liquid fuels, higher will be its heating value d) viscous fuels need heat tracing

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

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

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

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

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

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