Which sentence correctly states Boyle’s law?

A.
The pressure on a gas varies inversely with its volume at constant temperature.
B.
The pressure on a gas varies directly with its volume at constant temperature.
C.
The pressure on a gas varies directly with its temperature at constant volume.
D.
The pressure on a gas varies inversely with its temperature at constant volume.
E.
The volume of a gas varies directly with its temperature at constant pressure.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.