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Hassan
1.Nickel made/clad equipments are suitable for handling___?
A. Ammonia (both aqueous & anhydrous)
B. Sulphuric acid (concentrated)
C. Nitric acid & hydrochloric acid (concentrated)
D. Ammonia (both aqueous & anhydrous)
2.Aluminium as a material of construction suffers from the disadvantage of___?
A. Very high cost
B. Scarce availability
C. Rather low tensile strength
D. Very high cost
3.Which metal is protected by the layer of its own oxide ?
A. Iron
B. Silver
C. Calcium
D. Iron
4.In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of__?
A. Stainless steel
B. Cast iron
C. Lead lined steel
D. Stainless steel
5.The friction experienced by a body, when in motion, is known as
A. rolling friction
B. dynamic friction
C. limiting friction
D. rolling friction
6.Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
A. v
B. v/2
C. v/4
D. v
7.The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
A. sin θ
B. cos θ
C. tan θ
D. sin θ
8.The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.
A. less than
B. more than
C. equal to
D. less than
9. A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)
A. P = W tanα
B. P = W tan(α + φ)
C. P = W (sinα + μcosα)
D. P = W tanα
10. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
A. 30°
B. 60°
C. 90°
D. 30°
11.A smooth cylinder lying on its convex surface remains in _____ equilibrium.
A. stable
B. unstable
C. neutral
D. stable
12.Moment of inertia of a circular section about an axis perpendicular to the section is
A. πd3/16
B. πd3/32
C. πd4/32
D. πd3/16
13.The unit of angular acceleration is
A. N-m
B. m/s
C. m/s2
D. N-m
14.Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
A. bh3/4
B. bh3/8
C. bh3/12
D. bh3/4
15.What is Engineering Mechanics?
A. Study of bodies under motion without considering forces
B. Application of mechanics to issues involving common engineering aspects
C. Study of bodies only under rest
D. Study of bodies under motion without considering forces
16.What is Mechanics?
A. Branch of science which deals with failure analysis
B. Branch of science which deals with conditions of rest or motion of bodies
C. Branch of science which deals with the study of bodies only under rest
D. Branch of science which deals with failure analysis
17.Which of the following is a branch of mechanics?
A. Statics and kinetics
B. Statics and dynamics
C. Kinematics and dynamics
D. Statics and kinetics
18.Which of the following is the basic law for mechanics?
A. Newton’s law of viscosity
B. Parallelogram law
C. Newton’s laws of motion
D. Newton’s law of viscosity
19.Which of the following is termed as an action of pull or push of a body at rest or motion?
A. Torque
B. Momentum
C. Work
D. Torque
20.What is Kinematics?
A. Branch of dynamics which deals with the study of bodies under motion without considering forces
B. Branch of dynamics which deals with the study of bodies at rest
C. Branch of dynamics which deals with the study of bodies under motion by considering forces
D. Branch of dynamics which deals with the study of bodies under motion without considering forces
21.Which of the following is the SI unit of force?
A. Kg m
B. Kg m2
C. Kg m2/s
D. Kg m
22.According to which of the following laws of mechanics a body remains/continue in its state of rest or motion until it is disturbed by an external agent?
A. Newton’s first law of motion
B. Newton’s second law of motion
C. Newton’s third law of motion
D. Newton’s first law of motion
23.Which of the following is the characteristic of force?
A. Magnitude of force
B. Point of application of force
C. Direction of application of force
D. Magnitude of force
24.When can two forces be in equilibrium?
A. They are equal in magnitude
B. They are collinear
C. They are opposite in direction
D. They are equal in magnitude
25.Which of the following statements describes the resultant of two forces?
A. Force that maintains the system in equilibrium
B. Force that has the highest magnitude in the system
C. Force that has the same effect as the two forces
D. Force that maintains the system in equilibrium
26.The point of application where the total weight can be expected to be concentrated if the gravitational force is dispersed across the volume of the body is called ______
A. The surface of the body
B. The centroid of the body
C. Center of gravity of the body
D. The surface of the body
27.What is a free-body diagram?
A. It’s a sketch of a moving body that shows internal forces of the body and reaction forces
B. It’s a sketch of an undisturbed body that shows external forces of the body
C. It’s a sketch of an isolated body that shows external forces of the body and reaction forces
D. It’s a sketch of a moving body that shows internal forces of the body and reaction forces
28.The internal force in structures among the following is?
A. Gravity force
B. Compression force
C. Impact force
D. Gravity force
29.Which of the following is a feature of friction?
A. Always acts in the direction opposite to the applied force
B. Not a self-adjusting force
C. Always acts in the direction of applied force
D. Always acts in the direction opposite to the applied force
30.When there is no relative force between touching surfaces, which of the following force is developed?
A. Dry friction
B. Dynamic friction
C. Fluid friction
D. Dry friction
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