Mechanical Engineering Answers

A 10kg cylinder of radius 8 cm is rotating in a symmetric
V - channel with angular velocity 3.14 rads
-1
. Write the free
body diagram and calculate the torque required to keep it
rotating with the same angular velocity?
Given: The co-efficient of friction between the cylinder and
the surface = 0.3.

What is the yield strength of a metal sheet with thickness of max 300m and width max 4,000mm

1)A steel wire ABC 16m long having cross sectional area of 4mm2 weighs 20N . If the modulus of elasticity for the wire material is 200Gpa find the deflections at C and B

2)A max stress in a 6.36mm steel wide flange beam 100mm long moment of inertia 362mm4,modulus of elasticity 29,000Gpa with a load of 15kN.Calculate the max stress and deflection

A vertical load P is applied at the center A of the upper section of a homogeneous
frustum of a circular cone of height h, minimum radius a, and maximum radius b.
Denoting by E the modulus of elasticity of the material and neglecting the effect
of its weight, determine the deflection of point A.
1) neglecting the effect of its weight only due to p
2) consider the effect of its weight (p+w)

What is the ratio between camshaft and crankshaft of 6 cylinder inline engine?

The internal energy of a fluid is initially 18kJ. The internal energy of the fluid is increased to 76kJ by a non-flow thermodynamic process during which 50J of work was done. Determine the magnitude and direction of the heat energy transfer across the system during the process.

How much heat energy is required to change 2.8kg of ice at 230K into water at 323K?

An isosceles triangle is to be cut from a square lamina of side 50 cm. find the altitude it's of this triangle so that it vertex will be the centroid of the remaining shaded area.

Solve the following LP problem using graphical method
Maximize Z=5X1+2X2
Subject to
2X1+7X2 <= 100
3X1+8X2 <=135
X1 & X2 >=0

Dev cpp programme to find "total numbers of array elements".