The Union Public Service Commission (UPSC) will be conducting the Indian Engineering Services Exam for the year 2015. The official notification is expected to be announced by March 14, 2015. The exam is scheduled to be conducted on June 12, 2015.

Candidates who are preparing for the Engineering Services Exam this year, can find out what kind of questions were asked in this exam in the year 2013. The UPSC Engineering Services Examination 2013 consisted of two papers (Paper I and Paper II) of duration of two hours each. Questions asked in Mechanical Engineering Paper II of Engineering Services Exam 2013 are as follows:

1. The minimum number of links in constrained planer mechanism involving revolute pairs and two higher pairs is :

(a) 3
(b) 4
(c) 5
(d) 6

2. A ball is thrown upwards and it returns to the ground describing a parabolic path which of the following remains constant?

(a) Kinetic energy of the ball
(b) Speed of the ball
(c) Horizontal component of velocity
(d) vertical component of velocity

3. A man is climbing up a ladder which is resting against a vertical wall. When he was exactly half way up, the ladder started slipping. The path traced by the man is :

(a) Parabola
(b) Hyperbola
(c) Ellipse
(d) Circle

4. Consider the following statements regarding motions of various points of the same link of a mechanism :

1. The magnitude of the relative velocity of a point A with respect to a point B on a rotation of link is given by multiplication of angular velocity with distance between the points.
2. The direction of the relative velocity of a point A with respect to a point B on a rotating link is perpendicular to AB.
3. The resultant acceleration of a point A with respect to a point B of the same link is perpendicular to AB.

Which of these statements are correct?

(a) 1, 2 and 3
(b) 1 and 3 only
(c) 1 and 2 only
(d) 2 and 3 only

5. Consider the following statements regarding radial can nomenclature :

1. Motion of the trace point describes movement of the follower
2. The curve generated by the locus of trace point is called cam profile
3. Actual working curve of cam is called pitch curve
4. smallest circle that can be drawn tangential to cam profile is called base circle

Which of these statements are correct?

(a) 1, 2 and 3
(b) 1, 3 and 4
(c) 1 and 4 only
(d) 3 and 4 only

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