Final Test: Material Testing Lab

Dial gauge reading during measurement of deflection due to bending of a simply supported beam loaded at the centre is:

1.Initial Reading -21 smallest division in small circular scale & 23 small division in large circular scale.

2. Final reading after loading: 14 smallest division in small circular scale & 15 small division in large circular scale.

Length of the span is : 600mm;

Rectangular beam cross section: thickness=6mm & width=30mm

Load applied : 5kg; Take g=9.81m/s2

Modulus of Elasticity of beam material in GPa unit is (a)   (only number rounding without decimal point)

Dial gauge reading during measurement of deflection due to bending of a simply supported beam loaded at the centre is:

1.Initial Reading -21 smallest division in small circular scale & 23 small division in large circular scale.

2. Final reading after loading: 14 smallest division in small circular scale & 15 small division in large circular scale.

Length of the span is : 600mm;

Rectangular beam cross section: thickness=6mm & width=30mm

Load applied : 5kg; Take g=9.81m/s2

Deflection of beam material in mm unit is (a)   (only number rounding to two decimal point)

Dial gauge reading during measurement of deflection due to bending of a simply supported beam loaded at the centre is:

1.Initial Reading -21 smallest division in small circular scale & 23 small division in large circular scale.

2. Final reading after loading: 14 smallest division in small circular scale & 15 small division in large circular scale.

Length of the span is : 600mm;

Rectangular beam cross section: thickness=6mm & width=30mm

Load applied : 5kg; Take g=9.81m/s2

Moment of Inertia of beam cross section in mm^4 unit is (a)   (only number rounding without decimal point)

In a Brinell Hardness test of a steel sample:

Diameterof the steel ball indentor used: 2.5mm

Indentation diameter observed under microscope: 1.1mm

The load applied in the Hardness Tester is (kgf unit ) (a)   (Number only round upto 1 decimal point)

In a Brinell Hardness test of a steel sample:

Diameterof the steel ball indentor used: 2.5mm

Indentation diameter observed under microscope: 1.1mm

BHN of the sample material is (a)   (Number only round without decimal point)

In a Brinell Hardness test of a steel sample:

Diameterof the steel ball indentor used: 2.5mm

Indentation diameter observed under microscope: 1.1mm

Tensile Strength of the sample (MPa unit ) (a)   (Number only round without decimal point)

In a Charpy Impact Test initial position of the pointer before striking was at 200 & Final reading after breaking the sample is shown in figure.

Impact Toughness(in Joule) of the sample is (a)   (only number without decimal point)

Least Count of the Vernier Caliper(mm unit) is (a)   (number only)

Main Scale Reading= (a)   mm

If the least count is 0.01mm, the reading of dimension measured (mm unit) (a)   ( only number)