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Introduction to battery-management systems- COURSERA WEEK 04 FINAL QUIZ

 Introduction to battery-management systems- COURSERA WEEK 04  FINAL QUIZ 1 . Question 1 W hich of the followi ng detection mechanisms could protect a battery pack from overcurre nt? Select all that apply. 1 point Contactor Thermal fuse Electronic protection Resettable fuse 2 . Question 2 Suppose that a small passenger vehicle expends energy at a rate of 220Wh/mile while driving. If this vehicle's battery pack is charged at a 6.6kW rate, what is the rate of range added to the battery in "miles (of range) per hour"? Round your answer to the nearest "mph". 1 point 3 . Question 3 Suppose that a positive-electrode material has \theta_{0\%}^{\rm pos}=0.99 θ 0 % p o s ​ = 0 . 9 9 and \theta_{100\%}^{\rm pos}=0.49 θ 1 0 0 % p o s ​ = 0 . 4 9 . If \theta_k^{\rm pos}=0.59 θ k p o s ​ = 0 . 5 9 , what is the present cell state-of-charge (in percent)? Round to the nearest percent. 1 point 4 . Question 4 Suppose that a lithium-ion cell having total charge capacity Q=10 Q =...

Introduction to battery-management systems- COURSERA WEEK 01 QUIZ -1.1.5 ANSWERS

 Introduction to battery-management systems- COURSERA WEEK 01  QUIZ -1.1.5 ANSWERS

Practice quiz for lesson 1.1.5

Question 1

What is the mean atomic weight of lithium? (Enter three digits to the right of the decimal point.)

1 / 1 point
6.941
Correct

Yes. This is correct.

Question 2

How many valence electrons does carbon have?

1 / 1 point
4
Correct

Yes. Carbon has two electrons in its inner shell and four electrons in its outer valence shell.

Question 3

Consider an electrochemical cell where the negative electrode is sodium (Na) and the positive electrode is copper (Cu). What would be the standard potential of this cell? (Enter two digits to the right of the decimal point.)

1 / 1 point
3.05
Correct

Yes. The standard potential of the sodium half-reaction is -2.71V and the standard potential of the copper half-reaction is 0.34V. The cell voltage is 0.34V-(-2.71V)=3.05V.

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