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52.

53.

54.

55.

56.

Find the centroid of laminae shown in figure.
10mm
(dA
50 mm
+
20mm
100 mm
A) (50 mm, 45 mm) B) (50 mm, 35 mm)
C) (50 mm, 17 mm) D) (50 mm, 27 mm)

Statement | : The force of resistance offered by a body against the deformation is
called stress.

Statement Il : Compressive stress is the resistance offered by a section of amember
against an increase in length.

Out of following, which option is correct ?

A) Statement | and Statement Il are True

B) Statement | and Statement II are False

C) Statement | is False and Statement Il is True

D) Statement | is True and Statement Il is False

A wooden tie is 75 mm wide, 150 mm deep and 1.50 m long. It is subjected to an
axial pull of 45000 N. The stretch of the member is found to be 0.6380 m. Find the
stress developed in the member.

A) 0.25 N/mm? 8) 2 N/mm? C) 4 N/mm? D) 8 N/mm?

A 900 mm diameter pipe contains a fluid at a pressure of 2.5 N/mm2. If the safe
stress in tension is 100 N/mm2, find the minimum thickness of pipe.

A) 5.25mm B) 10 mm Cc) 4mm D) 11.25 mm

Statement | : Fibres in the neutral layer of a beam under simple bending is always
stressed.

Statement Il : The resultant pull or thrust on a transverse section of the beam under
pure bending is zero.

Out of following, which option is correct ?

A) Statement | and Statement Il are True

B) Statement | is True and Statement Il is False

C) Statement | is False and Statement Il is True

D) Statement | and Statement Il are False

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