Energy Engineering Interview Questions And Answers
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Elevate your Energy Engineering interview readiness with our detailed compilation of 28 questions. Each question is designed to test and expand your Energy Engineering expertise. Suitable for all experience levels, these questions will help you prepare thoroughly. Download the free PDF to have all 28 questions at your fingertips. This resource is designed to boost your confidence and ensure you're interview-ready.
28 Energy Engineering Questions and Answers:
Energy Engineering Job Interview Questions Table of Contents:
1 :: What is Energy Engineering?
Energy engineering is a broad field of engineering dealing with energy efficiency, energy services, facility management, plant engineering, environmental compliance and alternative energy technologies. Energy engineering is one of the more recent engineering disciplines to emerge.
Read More2 :: Do you know what energy systems engineers do?
► Manage operations of a wind turbine farm
► Analyze efficiency of hydro-electric power systems
► Oversee production of innovative fuel-cell technologies
► Evaluate the economic viability of new solar power installations
► Assess the environmental impact of alternative energy systems
Read More► Analyze efficiency of hydro-electric power systems
► Oversee production of innovative fuel-cell technologies
► Evaluate the economic viability of new solar power installations
► Assess the environmental impact of alternative energy systems
3 :: Do you know how does energy engineering job benefit the environment?
It is a direct impact on the environment:
lower energy usage results in lower green house gases which positively impacts the environment. The benefit is very direct.
Read Morelower energy usage results in lower green house gases which positively impacts the environment. The benefit is very direct.
4 :: A 33 half-watt resistor and a 330 half-watt resistor are connected across a 12 V source. Which one(s) will overheat?
A. 33
B. 330
C. both resistors
D. neither resistor
Option D
Read More5 :: When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
A. overheated
B. shorted
C. open
D. reversed
Option B
Read More7 :: A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?
A. 20.16 kWh
B. 201.6 kWh
C. 2.01 kWh
D. 8.4 kWh
Option B
Read More8 :: A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is
A. 8.57%
B. 42.85%
C. 4.28%
D. 85.7%
Option D
Read More9 :: A given power supply is capable of providing 6 A for 3.5 h. Its ampere-hour rating is
A. 0.58 Ah
B. 2.1 Ah
C. 21 Ah
D. 58 Ah
Option C
Read More10 :: A 15 V source is connected across a 12 resistor. How much energy is used in three minutes?
A. 938 Wh
B. 0.938 Wh
C. 56.25 Wh
D. 5.6 Wh
Option B
Read More11 :: At the end of a 14 day period, your utility bill shows that you have used 18 kWh. What is your average daily power?
A. 1.286 kWh
B. 12.85 kWh
C. 535 kWh
D. 252 kWh
Option A
Read More12 :: A 120 resistor must carry a maximum current of 25 mA. Its rating should be at least
A. 4.8 W
B. 150 mW
C. 15 mW
D. 480 mW
Option B
Read More13 :: If you used 400 W of power for 30 h, you have used
A. 1.3 kWh
B. 13.3 kWh
C. 1.2 kWh
D. 12 kWh
Option D
Read More14 :: A 6 V battery is connected to a 300 load. Under these conditions, it is rated at 40 Ah. How long can it supply current to the load?
A. 1 h
B. 200 h
C. 2,000 h
D. 10 h
Option C
Read More16 :: If you used 600 W of power for 60 h, you have used
A. 36 kWh
B. 3.6 kWh
C. 10 kWh
D. 1 kWh
Option A
Read More17 :: If it takes 400 ms to use 12,000 J of energy, the power is
A. 30 kW
B. 30 W
C. 3 W
D. 300 kW
Option A
Read More18 :: How many watt-hours represent 65 W used for 18 h?
A. 11.7 Wh
B. 1,170 Wh
C. 11,700 Wh
D. 117,000 Wh
Option B
Read More19 :: For 12 V and 40 mA, the power is
A. 480 mW
B. 0.480 W
C. 480,000 µW
D. all of the above
Option D
Read More20 :: A 220 resistor dissipates 3 W. The voltage is
A. 73.3 V
B. 2.5 V
C. 25.7 V
D. 257 V
Option C
Read More21 :: A 3.3 k resistor dissipates 0.25 W. The current is
A. 8.7 mA
B. 87 mA
C. 8.7 µA
D. 8.7 A
Option A
Explanation:
W = I2R
I = square root(W/R)
= square root( 0.25/(3.3x1000) )
= 0.0087038828
= 8.7 mA
Read MoreExplanation:
W = I2R
I = square root(W/R)
= square root( 0.25/(3.3x1000) )
= 0.0087038828
= 8.7 mA
22 :: A half-watt is equal to how many milliwatts?
A. 5,000 mW
B. 5 mW
C. 500 mW
D. 50 mW
Option C
Read More23 :: Three hundred joules of energy are consumed in 15 s. The power is
A. 2,000 W
B. 2 W
C. 20 W
D. 200 W
Option C
Read More24 :: The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be
A. 2 W
B. 1 W
C. 5 W
D. 0.5 W
Option A
Read More25 :: How much continuous current can be drawn from a 60 Ah battery for 14 h?
A. 42.8 A
B. 428 A
C. 4.28 A
D. 4.2 A
Option C
Read More