Engineering Answers

A foot-lever is 1 metre from the center of shaft to the point of application of 600 N load. Find: i) diameter of the shaft, ii) dimensions of the key, iii) dimensions of rectangular arm of the foot lever at 60 mm from the center of shaft assuming width of the arm as 3 times thickness. The allowable tensile stress may be taken as 75 N/mm2 and allowable shear stress as 70 N/mm2.

Form the partial differential equation by eliminating the arbitrary function f from z=f(x²-y²)

Form the partial differential equation by eliminating the arbitrary function f from z=f(xy)

Form the partial differential equation by eliminating the arbitrary function from z²-xy=f(x/z)

The properties of a system, during a reversible constant pressure non￾flow process at p = 1.6 bar, changed from v1 = 0.3 m3/kg, T1 = 20°C to v2 = 0.55 m3/kg, T2 = 260°C.

The specific heat of the fluid is given by

cp = 1.5+74/(T+45)kJ/kg°c

 , where T is in °C.

Determine : (i) Heat added/kg ;

(ii) Work done/kg ;

(iii) Change in internal energy/kg ;

(iv) Change in enthalpy/kg

The land surveyor is the one who recommends which bid the client should go with.

True or

False

The Pre tender stage is carried out by the contract manager

True or

False

Site layout planning is not really required, the contractor can utilise any available space provided, as long as it within the official handed over site

True or

False