From the stress-strain diagram shown below, the tangent and the secant moduli of elasticity in GPa are<br><img src="/images/question-image/mining-engineering/rock-mechanics-and-roof-supporting/1682422046-M2-2-12-3.PNG" title="Rock Mechanics and Roof Supporting mcq question image" alt="Rock Mechanics and Roof Supporting mcq question image">

A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is $$\frac{1}{3}$$, the acceleration is
Applied Mechanics and Graphic Statics mcq question image

Applied Mechanics and Graphic Statics mcq question image

A

0.5 m/sec²

B

0.75 m/sec²

C

1.00 m/sec²

D

1.25 m/sec²

A glass reinforced polymer composite comprises of 35 volume % glass fiber and 65 volume % of polymer resin. The elastic moduli of glass and polymer resin are respectively 70 GPa and 3 GPa. The elastic modulus of the composite (in GPa) under iso-strain state is

A

4.51

B

25.45

C

26.45

D

27.45

A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is
Hydraulics and Fluid Mechanics in ME mcq question image

Hydraulics and Fluid Mechanics in ME mcq question image

A

$$\frac{{{\text{b}}{{\text{d}}^2}}}{{12}} + \overline {\text{x}} $$

B

$$\frac{{{{\text{d}}^2}}}{{12\overline {\text{x}} }} + \overline {\text{x}} $$

C

$$\frac{{{{\text{b}}^2}}}{{12}} + \overline {\text{x}} $$

D

$$\frac{{{{\text{d}}^2}}}{{12}} + \overline {\text{x}} $$

A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is
Applied Mechanics and Graphic Statics mcq question image

A

50 kg

B

750 kg

C

100 kg

D

120 kg

The beam shown in below figure is supported by a hinge at ‘A’ and a roller at ‘B’. The reaction RA of the hinged support ‘A’ of the beam, is
Applied Mechanics and Graphic Statics mcq question image

A

10.8 t

B

10.6 t

C

10.4 t

D

10.2 t

Two loads of 50 kg and 75 kg are hung at the ends of a rope passing over a smooth pulley shown in below figure. The tension in the string is:
Applied Mechanics and Graphic Statics mcq question image

A

50 kg

B

75 kg

C

25 kg

D

60 kg

The ratio of the reactions RA and RB of a simply supported beam shown in below figure is
Applied Mechanics and Graphic Statics mcq question image

A

0.50

B

0.40

C

0.67

D

1.00

The centre of gravity of the trapezium as shown in below figure from the side is at a distance of
Applied Mechanics and Graphic Statics mcq question image

A

$$\frac{{\text{h}}}{3} \times \frac{{{\text{b}} + {\text{2a}}}}{{{\text{b}} + {\text{a}}}}$$

B

$$\frac{{\text{h}}}{3} \times \frac{{2{\text{b}} + {\text{a}}}}{{{\text{b}} + {\text{a}}}}$$

C

$$\frac{{\text{h}}}{2} \times \frac{{{\text{b}} + {\text{2a}}}}{{{\text{b}} + {\text{a}}}}$$

D

$$\frac{{\text{h}}}{2} \times \frac{{2{\text{b}} + {\text{a}}}}{{{\text{b}} + {\text{a}}}}$$

The vertical reaction at the support ‘A’ of the structure shown in below figure, is
Applied Mechanics and Graphic Statics mcq question image

A

1 t

B

2 t

C

3 t

D

3.5 t

The member which does not carry zero force in the structure shown in below figure, is
Applied Mechanics and Graphic Statics mcq question image

A

ED

B

DC

C

BC

D

BD

From the stress-strain diagram shown below, the tangent and the secant moduli of elasticity in GPa are

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