List of top Mechanical Engineering Questions on Machine Design asked in TS PGECET

If a radial ball bearing has a basic load rating of \(50 \text{ kN}\) and desired rating life is \(6000 \text{ hours}\), then the equivalent radial load that the bearing can carry at \(500 \text{ rpm}\) is
If the core diameter of threads equal to the diameter of unthreaded portion of the bolt, then it is known as
A shaft diameter 'd' is connected to the hub through a square key each of side 'd/4' and length '\(l\)' and transmits a torque 'T'. Assume the length of key is equal to thickness of the pulley, the average shear stress developed in the key is
When brakes are applied to a moving vehicle, then the kinetic energy of the vehicle is converted to
Generally, in welded joints, the maximum size of fillet weld is considered by
A circular shaft has been designed for the twisting moment of $5\text{ kN}\cdot\text{m}$. If the twisting moment is reduced to $4\text{ kN}\cdot\text{m}$, then what will be the maximum value of bending moment that can be applied for the same designed condition?
If the double threaded square screw is having mean diameter \( 8\text{ cm} \) and pitch \( 2\text{ cm} \), then the lead of the double threaded square screw is
When brakes are applied to a moving vehicle, then the kinetic energy of the vehicle is converted to
Generally, in welded joints, the maximum size of fillet weld is considered by
A shaft diameter 'd' is connected to the hub through a square key each of side 'd/4' and length '\(l\)' and transmits a torque 'T'. Assume the length of key is equal to thickness of the pulley, the average shear stress developed in the key is
If a radial ball bearing has a basic load rating of \(50 \text{ kN}\) and desired rating life is \(6000 \text{ hours}\), then the equivalent radial load that the bearing can carry at \(500 \text{ rpm}\) is
If the core diameter of threads equal to the diameter of unthreaded portion of the bolt, then it is known as
A circular shaft has been designed for the twisting moment of $5\text{ kN}\cdot\text{m}$. If the twisting moment is reduced to $4\text{ kN}\cdot\text{m}$, then what will be the maximum value of bending moment that can be applied for the same designed condition?
If the double threaded square screw is having mean diameter \( 8\text{ cm} \) and pitch \( 2\text{ cm} \), then the lead of the double threaded square screw is
A shaft diameter 'd' is connected to the hub through a square key each of side 'd/4' and length '\(l\)' and transmits a torque 'T'. Assume the length of key is equal to thickness of the pulley, the average shear stress developed in the key is
When brakes are applied to a moving vehicle, then the kinetic energy of the vehicle is converted to
Generally, in welded joints, the maximum size of fillet weld is considered by
The close-coiled helical springs 'A' and 'B' are of same material, same coil diameter, same wire diameter and subjected to same load. If the number of turns of spring 'A' is half that of spring 'B', the ratio of deflection of spring 'A' to spring 'B' is
If a radial ball bearing has a basic load rating of \(50 \text{ kN}\) and desired rating life is \(6000 \text{ hours}\), then the equivalent radial load that the bearing can carry at \(500 \text{ rpm}\) is
The difference between two principal stresses is \(120 \text{ MPa}\), when a circular shaft is subjected to an axial force and shear force. What is the factor of safety based on maximum shear stress theory if elastic limit of the bar is \(300 \text{ MPa}\)?
If the core diameter of threads equal to the diameter of unthreaded portion of the bolt, then it is known as