Corrosion Online Exam Quiz
Corrosion GK Quiz. Question and Answers related to Corrosion. MCQ (Multiple Choice Questions with answers about Corrosion
In zinc-air cells are composed of three parts of zinc used as ___
Options
A : Anode
B : Cathode
C : Based on the half cell
D : Can't be said
Nickel metal hydrated batteries having the low cell voltage of __
Options
A : 1V
B : 1.2V
C : 1.3V
D : 1.4V
The advantages of the nickel metal hydrated batteries are having ___ more energy than the nickel cadmium batteries.
Options
A : 100%
B : 50%
C : 75%
D : 25%
The amount of iron wasted by corrosion each year is estimated about ___ of its annual production.
Options
A : 1
B : 2-Jan
C : 4-Jan
D : 8-Jan
The corrosion is the reverse process of __
Options
A : Metal extraction
B : Metal production
C : Metal heating
D : Metal moulding
The drawback of this battery is the working voltage of battery is ___ due to the internal losses.
Options
A : Higher
B : Lower
C : Moderate
D : Not considerable
The emf of the anode in zinc-air batteries is ___
Options
A : -1V
B : -1.25V
C : 1V
D : 1.25V
The emf of the cathode in the zinc-air batteries is __
Options
A : 0.1V
B : 0.2V
C : 0.3V
D : 0.4V
Which of the following is not lost during corrosion?
Options
A : Malleability
B : Ductility
C : Conductivity
D : Colour
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