Kwh 1 Samenvattingen, Notities en Examens

BSBSUS401 Assessment 1 – Part B 1. Energy waste means consumption of electricity, water and gas when that not performs any useful action. One of main reason of energy waste occurs is energy consumption devices are not managed and maintained properly. Energy wastage are grouped in three categories:  Long term energy waste – permanent problems  Regular energy waste – daily event which is predictable  Intermittent energy waste – irregular events Poor maintenances Electroni...

Chapter 3 Fossil Fuel Resources and Use 3.1 A person's primary energy needs are supplied exclusively by burning oil (with an energy content of 3.85 × 107 J/L). If a person's average power consumption is 12 kW, how long would it take that person to use one barrel of oil (158.97 liters)? Solution The power 12 kW is the same as energy consumed at a rate of 12,000 J/s. Thus the amount of oil required per second is (12,000 J/s)/(3.85 × 107 J/L) = 3.12 × 10–4 L/s. Thus to consume...

What is the result if the neutral wire becomes open on a multiwire circuit having unequal loads? a. The load of higher resistance would overheat and probably be damaged. b. The load of lesser resistance would overheat and probably be damaged. c. No effect until one load is turned off or opens. d. No effect. a. The load of higher resistance would overheat and probably be damaged. Circuits 7 and 9 share a neutral. This is a multiwire branch circuit. If Ckt. 7 is drawing 13 amps and ...

1-1 Light output is measured in ...? a) Footcandles b) Lumens c) Watts d) Electrons - b) Lumens 1-2 Rated lamp life is the time when ...? a) Lamps reach 20,000 hours of operation b) 1/2 of a large group of lamps are expected to have failed c) All lamps are expected to fail d) It's the best time to group relamp - b) 1/2 of a large group of lamps are expected to have failed 1-3 The Color Rendering Index is a scale that describes how accurately colors look when struck by the light fr...

Three transmission methods are - Symplex, half duplex, full duplex The choice of a specific transport medium is influenced by 5 economics and technical considerations such as the: - Physical construction, type of services, topology and size of the network, transmission path distance, transmission performance characteristics of the cabling. Twisted pair cable is called balanced cable because: - The physical construction of both conductors and the associated connections transmit information ...

PTICH correct answersrise/span what size of a circuit breaker can be installed on a line with 7 outlets 14 AWG wire? correct answers15 amp; according to code, the conductor ampacity rating for a 14 gauge wire is 15 amps. for 12 gauges wire is 20 amps. the number of outlets does not determine the size of circuit breaker. how many roof squares are in the roof measuring 45' by 50'? correct answers22.5; (45x50) / 100 (roofing squares made of 10'x10'). total drop for a 120' pipe with a ...

AQA A-Level Physics Actual Questions with Correct Answers 2024 Update 100% Solved What are the SI units of mass, length, time, amount of substance, temperature, electric current? mass kg, length m, time s, amount of substance mol, temperature K, electric current A List the decimal prefixes and their "power of ten" values kilo 3, mega 6, giga 9, tera 12, centi -2, milli -3, micro -6, nano -9, pico -12, femto -15 How do you convert eV to J, and how do you convert kWh to J? 1 eV = 1.6 ...

BBE 2201 Final Exam Study Guide 2023 with complete solution Slow Carbon Cycle Carbon moving through rocks, soil, the ocean, and the atmosphere over time Fast Carbon Cycle Carbon moving through life forms, i.e plants and animals True/False: Clearing forests to plant agricultural crops results in an increase in atmospheric carbon dioxide True. There is a carbon equilibrium established with any land use. Where are the 9 gigatons of added carbon (by humans) in the fast carbon cycle going? ...

AQA A-Level Physics All Possible Questions and Answers New Year with complete solution What are the SI units of mass, length, time, amount of substance, temperature, electric current? Ans- mass kg, length m, time s, amount of substance mol, temperature K, electric current A List the decimal prefixes and their "power of ten" values Ans- kilo 3, mega 6, giga 9, tera 12, centi -2, milli -3, micro -6, nano -9, pico -12, femto -15 How do you convert eV to J, and how do you convert kW...

NABCEP PRACTICE EXAM QUESTIONS WITH SOLUTIONS power=250W, open circuit voltage=40V, maximum power voltage=35V, short circuit current=8A, maximum power current=7.5A, temp coefficient for voltage= -0.33%/°C, CEC power=220W, NOCT=48°C, Inverter low MPPT voltage=230V, Inverter maximum input voltage=550V There are 4 PV source circuits of 10 modules each. What is the MPPT voltage of the array at Standard Test Conditions? a. 160V b. 350V c. 140v d. 230V - ANS b. 350V an off grid insta...