UPPSC AE Paper-1 Quiz-16

The moment of Inertia of an area is always least with respect to:

The purpose of annealing is to

Following diagram represents the stress strain curve for _________.

In case of bi-axial state of normal stresses 100 MPa and 50 MPa respectively, the normal stress on 45° plane is equal to

The following list of statements is given:

1) Grashoff’s rule states that for a planar crank-rocker 4-bar mechanism, the sum of the shortest and longest link lengths cannot be less than the sum of the remaining two link lengths.

2) Inversions of a mechanism are created by fixing different links, one at a time.

3) Geneva mechanism is an intermittent motion device.

4) Gruebler’s criterion assumes mobility of a planar mechanism to be one.

The number of correct statements in the above list is

The number of links in a planar mechanism with revolute joints having 10 instantaneous centres is ________.

For which surfaces, spirit level is used for testing straightness?

Strain energy stored in a body of volume V subjected to uniform stress  is:

Determine the type of friction acting on the block having mass 20kg and the force applied in it 5N, if the coefficient of friction between the block and the surface is 0.3.
Take g= 10m/s²