Where are these questions wrong?

I need help!!!

(1) Heat terms are present in the mechanical energy balance, and are absent in Bernoullisequation.(F)

(2)As gasoline flows steadily upward in a pipe of uni form diameter, its velocity decreases because of the negative influence of gravity.(F)

(3) If Bernoullis equation is divided through bygc , then each term becomes a fluid head, and has the units of length, such as feet or meters.(F)

(4)A stream of mass flow rate m and velocity u convects momentum at a rate mu. (F)

(5)There is always a pressure decrease across a sudden expansion in a pipeline.(F)

(6) Bernoullis equation (with w=F=0) holds across a sudden expansion in a pipe.(F)

(7)The Reynolds number is a measure of the ratio of inertial forces to viscous forces. (F)

(8) For laminar flow in a pipe with mean velocity um, the kinetic energy per unit mass is one-half the square of the mean velocity, namely, um/2.(F)

(9) For a rough pipe, the Fanning friction factor keeps on decreasing as the Reynolds number increases.(F)

(10)For pipe flow, the friction factor varies gradually as the Reynolds number increases from laminar flow to turbulent flow. (F)

(11)The hydraulic mean diameter for an open rectangular ditch of depth D and width 3D is 1.5D. (Assume that the ditch is full of water)(F)

21:53 - 4G Where are these questions wrong? I need help!!! (1) Heat terms are present in the mechanical energy balance, and are absent in Bernoulli'sequation.(F) (2)As gasoline flows steadily upward in a pipe of uni form diameter, its velocity decreases because of the negative influence of gravity.(F) (3) If Bernoulli's equation is divided through bygc , then each term becomes a fluid head, and has the units of length, such as feet or meters. (F) (4)A stream of mass flow rate mand velocity u convects momentum at a rate mu? (F) (5)There is always a pressure decrease across a sudden expansion in a pipeline. (F) (6) Bernoulli's equation (with w=F=0) holds across a sudden expansion in a pipe.(F) (7)The Reynolds number is a measure of the ratio of inertial forces to viscous forces. (F) (8) For laminar flow in a pipe with mean velocity im the kinetic enerov ner unit 21:53 al 4G (8) For laminar flow in a pipe with mean velocity um, the kinetic energy per unit mass is one-half the square of the mean velocity, namely, um/2.(F) (9) For a rough pipe, the Fanning friction factor keeps on decreasing as the Reynolds number increases.(F) (10)For pipe flow, the friction factor varies gradually as the Reynolds number increases from laminar flow to turbulent flow. (F) (11) The hydraulic mean diameter for an open rectangular ditch of depth D and width 3D is 1.5D. (Assume that the ditch is full of water) (F)