A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is None of these Less than 1/10 Greater than 1/10 Equal to 1/10 TRUE ANSWER : ? YOUR ANSWER : ?
In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that The effect of curvature of the cylinder wall is neglected The effect of the restraining action of the heads at the end of the pressure vessel is neglected The tensile stresses are uniformly distributed over the section of the walls All of these TRUE ANSWER : ? YOUR ANSWER : ?
When a helical compression spring is cut into halves, the stiffness of the resulting spring will be One-fourth One-half Double Same TRUE ANSWER : ? YOUR ANSWER : ?
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be (6V/ π)1/2 (6V/ π)3 (6V/ π)2 (6V/ π)1/3 TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of driving tensions in V-belt drives is __________ flat belt drives. sin α times more than cosec α times more than sin α times less than Equal to TRUE ANSWER : ? YOUR ANSWER : ?
For hardening alloy steels and high speed steels, they are heated to 1300 to 1500°C 700 to 900°C 500 to 600°C 1100 to 1300°C TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an anti-friction bearing? Pedestal bearing Needle bearing Collar bearing Journal bearing TRUE ANSWER : ? YOUR ANSWER : ?
The property of a material which enables it to be drawn into wires with the application of a tensile force, is called Ductility Plasticity Malleability Elasticity TRUE ANSWER : ? YOUR ANSWER : ?
The distribution of the forces along the length of key fitted in a shaft Varies linearly Varies exponentially, being less near the torque-input end Varies exponentially, being more near the torque-input end Is uniform throughout TRUE ANSWER : ? YOUR ANSWER : ?
The washer is generally specified by its Mean diameter Hole diameter Outer diameter Thickness TRUE ANSWER : ? YOUR ANSWER : ?