1
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The transfer of electrical signals by nerve cells in human body is enabled by
A
sodium
B
potassium
C
iron
D
sodium and potassium
2
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Silver artifacts get tarnished in the air due to the formation of
A
silver chloride
B
silver oxide
C
silver sulphide
D
silver sulphate
3
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Human eye can see objects at different distances with contrasting illuminations. This is due to
A
far-sightedness
B
near-sightedness
C
far-sightedness and nearsightedness
D
accommodation of eye
4
NDA General Ability 4 September 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following hormones increases the heartbeat in mammals?
A
Insulin
B
Melatonin
C
Thyroxine
D
Adrenaline
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