WorksheetsENGG003 Midterm Exam Part 1
Total questions: 15
Worksheet time: 30mins
A couple is consists of
Two like parallel forces of same magnitudes
Two like parallel forces of different magnitudes
Two unlike parallel forces of same magnitudes
243 kphTwo unlike parallel forces of different magnitudes
If the sum of all the forces acting on a body is zero, then the body may be in equilibrium provided the forces are
Concurrent
Parallel
Like parallel
Unlike parallel
900 N weight hangs on a vertical rope. A man pushes this weight horizontally until the rope makes and angle of 40° with the vertical. What is the tension in the rope?
917.13 N
834.64 N
1174.87 N
1285.69 N
A load of 100 lb is hung from the middle of a rope which is stretched between two rigid wall 30 ft. apart. Due to the load, the rope sags 4 ft. in the middle. Determine the tension in the rope.
149 lbs
165 lbs
173 lbs
194 lbs
Forces are called concurrent when their lines of actions meet in
one point
two points
same plane
different plane
Forces are called coplanar when tall of them acting on body lie in
one point
one plane
different point
different plane
Effect of a force on a body depends upon
magnitude
direction
position or line of action
all of the other choices
If a number of forces act simultaneously on a particle, it is possible
not to replace them by a single force
to replace them by a single force
to replace them by a couple
to replace them by a couple and a force
If two equal forces of magnitude P act at an angle 9° with the horizontal of Quadrant 1, their resultant will be
P/2 cos 9/2
IP sin 9/2
2P tan 9/2
IP cos 9/2
The weight of a body is due to
gravitational force of attraction towards the center of the earth
gravitational pull exerted by the earth
forces experienced by body in atmosphere
centripetal force of earth
What is the magnitude of the resultant force of the two forces which are perpendicular to each other? The two forces are 20 units and 30 units respectively.
36
42
25
40
A post is supported by a guy wire which exerts a pull of 100 N on the top of the post. If the angle between the wire and the ground is 60 degrees, what is the horizontal component of the force supporting the pole?
86.6 N
50.0 N
76.6 N
98.5 N
Determine the resultant of the following forces: A = 600 N at 40 degrees, B = 800 N at 160 degrees and C = 200 N at 300 degrees.
532.78 N, 55.32 degrees
435.94 N, 235.12 degrees
522.68 N, 111.57 degrees
627.89 N, 225.81 degrees
What is the branch of engineering mechanics which refers to the study of stationary rigid body?
Statics
Kinetics
Kinematics
Dynamics
What is the branch of engineering mechanics which refers to the study of rigid body in motion without reference to the force that causes the motion?
Statics
Kinetics
Kinematics
Dynamics
