Subject :NCO Class : Class 3
A scroll wheel is found on which of the following input devices?
(a) 
(b) 
(c) 
(d) 
Ans 1:
Class : Class 6
We can see properly that a mouse has a scrool wheel.It is wrong.
Ans 2:
Class : Class 6
this question is wrong it should be (bbbbbbbbbb) !!!!!!!!!!! i am so angry
Ans 3:
Class : Class 4
Now the answer is correct mouse
Ans 4:
Class : Class 8
for me also, its mouse and not D - Joystick
Ans 5:
Class : Class 4
This Question is wrong it should be banned!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Ans 6:
Class : Class 6
This answer should be (B) MOUSE
Ans 7:
Class : Class 8
It should be mouse not Joystick(D)
Ans 8:
Class : Class 3
Is it not Mouse ? The site reports the correct answer as "D".