1)what light sensor should be used in ver weak light conditions:a) photo-emissive cells b)photo-conductive cells c)photo-diode d) photo-voltaic cell
2)for Arduino serial monitor, which function is to check whether the serial port is connected? a)begin() b) flush() c) available() d)if(Serial)
3)For a 3 by 2 array as defined below, what is the content of unit myarray[2][1]?
int myarray[3][2] = {{1,2},{4,5},{6,7}} a)4 b)6 c)7 d)2
4)which of the following is not correct fr defining an array? a)int myarray1[8]={1,2,3,4,5,6,7}; b) int myary1[]={1,2,3,4}; c)float mydat1[] = {1,2.3,6.5}; float xyz = {2,5.6,8.9};
They let you take this test home? 
yes lol
Not to be too harsh, man, but were you in class? I'll give you #1. The answer is (c).
I was but they just taught too fast so i couldnt understand much. thanks! I think 2 is D and 4 is B and 3 is D?
I think 2 is D and 4 is B and 3 is D?
You have an Arduino. Write some code. Look at the compiler output. Print some values. Don't guess.