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Engineering Mechanics

Engineering Materials – Section 5

1. Which of the following is a case hardening process? A. Carburising B. Cyaniding C. Nitriding D. all of these Answer: Option D 2. In a crystalline material, atoms are arranged in definite and orderly manner and form. A. Agree B. Disagree Answer: Option A 3. The austenitic stainless steel …

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Engineering Materials – Section 4

1. The bond formed by transferring electrons from one atom to another is called A. ionic bond B. covalent bond C. metallic bond D. none of these Answer: Option A 2. Which of the following property is desirable in parts subjected to shock and impact loads? A. Strength B. Stiffness …

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Engineering Materials – Section 2

1. Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities? A. Sulphur B. Phosphorus C. Manganese D. Silicon Answer: Option C 2. The hardness of steel depends upon the A. amount of cementite it contains B. amount of carbon …

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Engineering Mechanics – Section 5

1. The forces, which meet at one point and their lines of action also lie on the same plane, are known as A. coplaner concurrent forces B. coplaner non-concurrent forces C. non-coplaner concurrent forces D. non-coplaner non-concurrent forces Answer: Option A Explanation: No answer description available for this question. Let …

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Engineering Mechanics – Section 4

1. Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to A. area of the triangle B. twice the area of the …

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Engineering Mechanics – Section 3

1. If the masses of both the bodies, as shown in the below figure, are doubled, then the acceleration in the string will be A. same B. half C. double Answer: Option A Explanation: No answer description available for this question. Let us discuss. 2. The loss of kinetic energy …

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Engineering Mechanics – Section 2

1. The point, through which the whole weight of the body acts, irrespective of its position, is known as A. moment of inertia B. centre of gravity C. centre of percussion D. centre of mass Answer: Option B Explanation: No answer description available for this question. Let us discuss. 2. …

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Engineering Mechanics – Section 1

1. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction. A. True B. False Answer: Option B 2. The friction experienced by a body, when in motion, is known …

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