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UP Polytechnic Lecturer: Mechanical Paper -1 || Quiz 7
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Question 1
The ratio of hoop stress for a thin cylindrical pressure vessels to the thin spherical vessels is
Question 2
In a Non-linearity error curve, maximum error is shown by alphabet:
Question 3
A lamp is fitted vertically downward by a wire inside a lift which is moving downward with an acceleration of 5.5 m/s2. If the tension in the wire is (FT ) 12.0N, find the mass of the lamp?
Question 4
In an inert gas welding process, the commonly used gas is
Question 5
When a rotor of mass 100 kg is mounted on a shaft, a bending deflection of 0.1 mm is observed at the place where the rotor is placed, what is the dangerous speed(rpm) of the rotor?
Question 6
The lead time in material requirements planning is the time between
Question 7
The usual method of defining machinability of a material is by an index based on
Question 8
According to which theorem when a number of loads rest upon a beam, the deflection at any point is equal to the sum of the deflections at this point due to each of the loads taken separately?
Question 9
In the assembly of pulley, key and shaft:
Question 10
What shall be the centre distance between the axes of pinion and gear when a 20 ° full-depth involute profile pinion with 20 teeth meshes with a gear that has 50 teeth for a module of 6 mm?
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