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ENGINEERING MECHANICS — Minor 2 2023 question paper

MMMUT Mechanical Engineering previous year question paper for ENGINEERING MECHANICS (BME-102), semester 1, Minor 2 2023. All 8 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: ENGINEERING MECHANICS (BME-102)
  • Branch: Mechanical Engineering
  • Semester: 1
  • Exam: Minor 2 2023
  • Questions: 8

Questions asked in ENGINEERING MECHANICS Minor 2 2023

  1. Q1. Attempt any Two parts of the following. Q.1 (a) is compulsory.
  2. Q1(a). Differentiation between translation, rotation, and general plane motion with suitable examples. A car is running on a curved road of radius 200m at a speed of 20 m/s. After applying the brakes, the speed uniformly reduces to 10 m/s in 10 seconds. Find out the total acceleration of the car just before and after applying the brakes. [3 marks]
  3. Q1(b). Two blocks of mass 20 kg and 10 kg are connected by a light string as shown in figure. The coefficient of friction between the contacting surfaces is 0.2. Determine the acceleration of the system. [2 marks]
  4. Q1(c). Explain the principle which is used to solve the problems of dynamics with suitable examples. What is the difference between impulse and momentum? Show that the total energy possessed by an object remains constant. [2 marks]
  5. Q2. Attempt any Two parts of the following. Q. 2 (a) is compulsory.
  6. Q2(a). How is the diagonal of a cube elongated while applying shear stress? Proceeding to this, find out the relation between Young's modules of elasticity and Modulus of rigidity [3 marks]
  7. Q2(b). A bar of 400 mm in length has two ends with 40 mm diameter and is subjected to tensile load of 50 kN. The stress in the middle portion is limited to 130 MN/m². If the total elongation of the bar is 0.15 and value of F is 200 GN/m², find out the diameter and length of middle portion of the bar. [2 marks]
  8. Q2(c). Explain the concept of simple bending using suitable examples. A cantilever of length 2 meters fails when a load of 2 kN is applied at free end. If the section of the beam is 40mm×60mm, find the stress at failure. [2 marks]