Question 1
Three coplanar concurrent forces P, Q, and R act at a point in equilibrium. The angle between P and Q is 120 degrees, and the angle between Q and R is 150 degrees. If the magnitude of force P is 100 N, what is the magnitude of force R?
Correct Answer:
173.2 N
Question 2
A block of weight 200 N rests on a rough inclined plane making an angle of 30 degrees with the horizontal. If the coefficient of static friction between the block and the plane is 0.4, what is the minimum force parallel to the incline required to prevent the block from sliding down?
Correct Answer:
30.7 N
Question 3
A truss consists of members forming an equilateral triangle ABC with a horizontal base BC of length L. The truss is pinned at support B and rests on a roller support at C. A vertical downward load of 10 kN is applied at the top joint A. What is the force in member AB?
Correct Answer:
5.77 kN (Compression)
Question 4
A solid cylinder of mass M and radius R rolls down an inclined plane of angle theta without slipping. What is the acceleration of the center of mass of the cylinder?
Correct Answer:
(2/3) * g * sin(theta)
Question 5
The position of a particle moving along a straight line is defined by s(t) = 2*t^3 - 9*t^2 + 12*t meters, where t is in seconds. At what time t is the velocity of the particle zero?
Correct Answer:
1 s and 2 s
Question 1
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Prepare with the ISRO Scientist Mechanical Practice Questions - ISRO Scientist Engineer SC - Mechanical Engineering Exam practice quiz. This question bank includes 100 questions covering length, stress, mass, temperature, and pressure. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ISRO Scientist Mechanical Practice Questions - ISRO Scientist Engineer SC - Mechanical Engineering Exam

This practice set contains 100 questions from the matching question bank and focuses on length, stress, mass, temperature, and pressure. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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