Question30:-A double acting reciprocating pump runs at 120 rpm. The suction pipe
has a diameter of 100 mm has an air vessel fitted to its suction side. The diameter

of cylinder and stoke are 150 mm and 450 mm respectively. If piston is driven with

Simple Harmonic Motion, the rate of flow into the air vessel when the crank makes

60° with the inner dead centre is

A:-0.011m3 /s
B:-o.007m3 /S
C:-0.019m3 /S
D:-oms /s
Correct Answer:- Option-A
Question31:-According to Lami's Theorem
A:-Three forces acting at a point will be in equilibrium

B:-Each forces acting at appoint can be represented by a triangle each side
being proportional to force

C:-lf three forces acting upon a particle are represented in magnitude and
direction by the sides of the triangle taken in the order they will be in equilibrium

D:-If three forces acting at a point are in equilibrium, each force is proportional
to the sine of the angle between the other two

Correct Answer:- Option-D

Question32:-A body is subjected to a direct tensile stress of 600 MPa in one plane
accompanied by simple shear stress of 400 MPa. The maximum shear stress will be

A:--100 MPa
B:-500 MPa
C:-250 MPa
D:--250 MPa
Correct Answer:- Option-B

Question33:-A column of length 'L' with one end fixed and other end hinged may be
considered equivalent to a column of length with both ends hinged.

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B:-L/2
(:-1/2
D:-L/8
Correct Answer:- Option-C
Question34:-The slope of the stress-strain curve in the elastic deformation region is
A:-Elastic modulus
B:-Plastic modulus
C:-Poisson's ratio
D:-None of the mentioned

Correct Answer:- Option-A