Question 1 : If speed of pump is doubled, power goes up by
- 2 times
- 6 times
- 4 times
- 8 times
Question 2 : Which of the following may not help in energy efficient furnace operation?
- Maintaining a positive draft inside the furnace
- Minimizing refractory losses
- Complete combustion with maximum excess air
- Use of ceramic fiber in batch type furnace
Question 3 : The power factor indicated in HT electricity bill is
- Peak day pf
- Pf during night
- Average pf
- Instantaneous pf
Question 4 : The legal framework of energy efficiency in India is given by
- Electricity Act 2003
- Energy Conservation Act 2001
- Indian Electricity Act 1910
- Electricity Supply Act 1958
Question 5 : Simple payback period for a motor costing Rs.60 lakhs and with annual operational charges Rs.5 lakhs is expected to save Rs. 20 lakhs by reducing energy, is
- 5 years
- 4 years
- 3 years
- 2 years
Question 6 : kVAr required to improve p.f. is calculated as
- kW(tan á´“1-tan á´“2)
- kW(cos á´“1-cos á´“2)
- kW(sin á´“1-tan á´“2)
- kW(sin á´“1-sin á´“2)
Question 7 : Electrical energy meter for LT residential consumers records the amount of
- Consumed Electrical power
- Consumed electrical Energy
- System voltage
- Used resistance
Question 8 : The percentage of energy saved at the current rate of use, compared to the reference year rate of use, is called
- Energy Utilization
- Energy Efficiency
- Energy saving
- Energy Performance
Question 9 : Which one is NOT the component of steam distribution system
- Valves
- Insulation
- Air vents
- Vapouriser
Question 10 : Which of the following statements is false regarding wind turbine?
- wind power does not vary as the cross-sectional area of the rotor
- wind power varies as cube of wind velocity
- cut-in wind speed is always less than rated wind speed
- theoretical maximum amount of energy in the wind that can be collected by wind turbine rotor is about 95%
Question 11 : Variable Speed drives operates on principle of
- Change in p.f.
- Change in Current
- Change in no. of poles
- Change in frequency
Question 12 : Tariff structure for residential consumers does not include
- Fixed Charges
- Wheeling Charges
- Energy Charge
- PF Penalty charge
Question 13 : Operating furnace at too high temperatures than optimum will NOT cause
- Carbonization
- De-carbonization
- Excessive oxidation
- Heat loss
Question 14 : Lux meter is used for
- Measurement of Illumination Level
- Measurement of Flow
- Measurement of Level
- Measurement of Temperature
Question 15 : The instrument used to measure various gases such as O2, CO, NO2 and SOX.
- Power analyzer
- Combustion Gas analyzer
- Fyrite
- Pyrometer
Question 16 : To determine the pump efficiency, which three key parameters are required?
- Flow, volume and length
- Flow, Head and Power.
- Velocity, Force and Power.
- Temperature, Head and type of liquid.
Question 17 : Select the wrong statement in case of steam trap
- Discharges condensate as soon as it is formed
- Capable of discharging air and other condensable gases
- Does not allow condensate to escape
- Does not allow steam to escape
Question 18 : Availability based tariff is applicable to
- Oil
- Coal
- Natural gas
- Electricity
Question 19 : A 20 kW rated motor is drawing actual measured power of 14 kW. If the rated efficiency is 92%, Determine the % loading of the motor?
- 52.1
- 75
- 82.3
- 64.4
Question 20 : Non-contact type measurement of temperature is obtained by
- Infrared Thermometer
- Resistance Thermometer
- Manometer
- Lux meter
Question 21 : Which one of the following statements is NOT true for the capacitors used for power factor improvement
- Capacitor bank is used up to 100 kVAr.
- Capacitor should be connected near the load
- Enclosure of capacitor bank should be earthed.
- Capacitor once switched off, some minimum period should be allowed before switching on again
Question 22 : The difference in temperature between steam and condensate refers to the principle of operation of a
- Thermodynamic trap
- Thermostatic trap
- Orifice type trap
- Float trap
Question 23 : How much will be the wastage of fuel oil per year if a hole of 3mm on a pipeline carrying 7kg/sq.cm steam
- 30KL
- 27KL
- 37KL
- 33KL
Question 24 : Energy intensity is the ratio of
- Final consumption / GDP
- GDP / fuel consumption
- GDP / energy consumption
- energy consumption In Mkcal/ GDP
Question 25 : In ECBC-compliant new building must have to show minimum energy savings of
- 0.3
- 0.25
- 0.2
- 0.15
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