List of top Mechanical Engineering Questions on Miscellaneous

Fixed investments for manufacturing a product in a particular year is Rs. 80,000. The estimated sales for this period is 2,00,000. The variable cost per unit for this product is Rs. 4. If each unit sold is at Rs. 20, then the break-even point would be:
Which of the following strain mainly represents the change of shape?
A steel rod of diameter 10 mm and 1 m long is heated from 20°C to 120°C, its coefficient of thermal expansion \( \alpha = 12 \times 10^{-6} / \text{K} \) and Young’s Modulus \( E = 200 \, \text{GPa} \). If the rod is free to expand, the thermal stress developed in it is
A plane truss has four members and four joints. The truss is
Which of the following forces are considered in the equations of virtual work?