is increased

is decreased

remains unchanged

becomes zero

8 kN.m

15 kN.m

30 kN.m

60 kN.m

always occurs at centre of span

always occurs under a wheel load

never occurs under a wheel load

none of the above

less than the left half span

whole of left half span

more than the left half span

whole span

the head of the load reaches the section

the tail of the load reaches the section

the load position should be such that the section divides it equally on both sides

the load position should be such that the section divides the load in the same ratio as it divides the span