Select the correct answer from each drop-down menu. What are the characteristics of section lines?
If the object’s main edges itself are at ↓ then you can use lines drawn at 30 or 60 degree. The spacing should be uniform ranging from ↓ depending on the size of the drawing.

First drop down menu
A. 30 degrees
B. 45 degrees
C. 180 degrees

Second drop down menu
A. 1.5 mm to 6 mm
B. 2.5 mm to 3 mm
C. 0.5 mm to 1.5 mm

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

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

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.