Online Quiz On Mechanics
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- 1.
![Determine the magnitude of the resultant force acting on the screw eye - ProProfs]( "Determine the magnitude of the resultant force acting on the screw eye")
Determine the magnitude of the resultant force acting on the screw eye- A.
5.798 kN
- B.
7.798 kN
- C.
6.798 kN
- D.
4.798 kN
- 2.
![What is the direction measured clockwise from the x-axis? - ProProfs]( "What is the direction measured clockwise from the x-axis?")
What is the direction measured clockwise from the x-axis?- A.
106º
- B.
103º
- C.
104º
- D.
105º
- 3.
![A trolley that moves along a horizontal beam is acted upon by two forces as shown. Knowing that a = 25º, determine the magnitude of the force P so that the resultant force exerted on the trolley is vertical. - ProProfs]( "A trolley that moves along a horizontal beam is acted upon by two forces as shown. Knowing that a = 25º, determine the magnitude of the force P so that the resultant force exerted on the trolley is vertical.")
A trolley that moves along a horizontal beam is acted upon by two forces as shown. Knowing that a = 25º, determine the magnitude of the force P so that the resultant force exerted on the trolley is vertical.- A.
5660 N
- B.
6660 N
- C.
4660 N
- D.
3660 N
- 4.
![What is the corresponding magnitude of the resultant? - ProProfs]( "What is the corresponding magnitude of the resultant?")
What is the corresponding magnitude of the resultant?- A.
3730 N
- B.
3830 N
- C.
3930 N
- D.
3630 N
- 5.
![The stock mounted on the lathe is subjected to a force of 60 N. Determine the coordinate direction angle β - ProProfs]( "The stock mounted on the lathe is subjected to a force of 60 N. Determine the coordinate direction angle β")
The stock mounted on the lathe is subjected to a force of 60 N. Determine the coordinate direction angle β- A.
50º
- B.
60º
- C.
40º
- D.
30º
- 6.
![Express the 60 N force as a Cartesian vector. - ProProfs]( "Express the 60 N force as a Cartesian vector.")
Express the 60 N force as a Cartesian vector.- A.
F = {30i−30j+42.4k} N
- B.
F = {20i−30j+42.4k} N
- C.
F = {30i−20j+42.4k} N
- D.
F = {-30i+30j+42.4k} N
- 7.
![A square foundation mat supports the four columns shown. Determine the magnitude of the resultant of the four loads. - ProProfs]( "A square foundation mat supports the four columns shown. Determine the magnitude of the resultant of the four loads.")
A square foundation mat supports the four columns shown. Determine the magnitude of the resultant of the four loads.- A.
-80i
- B.
-80k
- C.
-80j
- D.
-70j
- 8.
![Calculate the magnitude of the moment about the base point O of the 600-N force. - ProProfs]( "Calculate the magnitude of the moment about the base point O of the 600-N force.")
Calculate the magnitude of the moment about the base point O of the 600-N force.- A.
2509.851 N.m
- B.
2409.851 N.m
- C.
2069.851 N.m
- D.
2609.851 N.m
- 9.
![Determine the magnitude of the resultant force at A - ProProfs]( "Determine the magnitude of the resultant force at A")
Determine the magnitude of the resultant force at A- A.
1.18 kN
- B.
1.28 kN
- C.
2.18 kN
- D.
2.28 kN
- 10.
![The guy wires are used to support the telephone pole. Represent the 250 N force in Cartesian vector form. - ProProfs]( "The guy wires are used to support the telephone pole. Represent the 250 N force in Cartesian vector form.")
The guy wires are used to support the telephone pole. Represent the 250 N force in Cartesian vector form.- A.
43.519i + 174.064j - 174.064k
- B.
-43.519i + 174.064j – 174.064k
- C.
-43.519i - 174.064j + 174.064k
- D.
43.519i - 174.064j + 174.064k
- 11.
![The crate has a weight of 550 lb. Determine the tension in cable AB - ProProfs]( "The crate has a weight of 550 lb. Determine the tension in cable AB")
The crate has a weight of 550 lb. Determine the tension in cable AB- A.
489 Ib
- B.
487 Ib
- C.
498 Ib
- D.
478 Ib
- 12.
![What is the tension in cable AC - ProProfs]( "What is the tension in cable AC")
What is the tension in cable AC- A.
518 Ib
- B.
581 Ib
- C.
418 Ib
- D.
481 Ib
- 13.
![Represent the 175 N force in in Cartesian vector form - ProProfs]( "Represent the 175 N force in in Cartesian vector form")
Represent the 175 N force in in Cartesian vector form- A.
-53.22i - 79.836j - 146.366k
- B.
53.22i + 79.836j - 146.366k
- C.
53.22i - 79.836j - 146.366k
- D.
-53.22i - 79.836j - 146.366k
- 14.
![The screw eye is subjected to two forces, F1 and F2. Determine the magnitude of the resultant force. - ProProfs]( "The screw eye is subjected to two forces, F1 and F2. Determine the magnitude of the resultant force.")
The screw eye is subjected to two forces, F1 and F2. Determine the magnitude of the resultant force.- A.
231 N
- B.
213 N
- C.
313 N
- D.
321 N
- 15.
![What is the direction of the resultant force? - ProProfs]( "What is the direction of the resultant force?")
What is the direction of the resultant force?- A.
55.8º
- B.
56.8º
- C.
54.8º
- D.
45.8º
- 16.
![What is the sum of the moment at point A? - ProProfs]( "What is the sum of the moment at point A?")
What is the sum of the moment at point A?- A.
253 Ib-ft
- B.
255 Ib-ft
- C.
235 Ib-ft
- D.
0
- 17.
![What is the sum of the moment at point B? - ProProfs]( "What is the sum of the moment at point B?")
What is the sum of the moment at point B?- A.
253 Ib-ft
- B.
255 Ib-ft
- C.
235 Ib-ft
- D.
0
- 18.
![Three forces act on the car. The sum of the forces is zero and the sum of the moments of the forces about point P is zero. Determine the forces A and B. - ProProfs]( "Three forces act on the car. The sum of the forces is zero and the sum of the moments of the forces about point P is zero. Determine the forces A and B.")
Three forces act on the car. The sum of the forces is zero and the sum of the moments of the forces about point P is zero. Determine the forces A and B.- A.
A=933 lb, B=1867 lb
- B.
A=1867 lb, B=933 lb
- C.
A=1687 lb, B=933 lb
- D.
A=1867 lb, B=339 lb
- 19.
![What is the sum of the moment about Q? - ProProfs]( "What is the sum of the moment about Q?")
What is the sum of the moment about Q?- A.
1245 Ib-ft
- B.
0
- C.
1425 Ib-ft
- D.
None of the above
- 20.
![Three loads are applied to a beam as shown. The beam is supported by a roller at A and by a pin at B. Neglecting the weight of the beam, determine the reaction at A when P=15 kips. - ProProfs]( "Three loads are applied to a beam as shown. The beam is supported by a roller at A and by a pin at B. Neglecting the weight of the beam, determine the reaction at A when P=15 kips.")
Three loads are applied to a beam as shown. The beam is supported by a roller at A and by a pin at B. Neglecting the weight of the beam, determine the reaction at A when P=15 kips.- A.
6.00 kips
- B.
4.00 kips
- C.
7.00 kips
- D.
5.00 kips
- 21.
![What is the magnitude of the x component of the reactions at B? - ProProfs]( "What is the magnitude of the x component of the reactions at B?")
What is the magnitude of the x component of the reactions at B?- A.
6.00 kips
- B.
0
- C.
4.00 kips
- D.
5.00 kips
- 22.
![Determine the vertical component of the reaction on the beam caused by the rocker at A. - ProProfs]( "Determine the vertical component of the reaction on the beam caused by the rocker at A.")
Determine the vertical component of the reaction on the beam caused by the rocker at A.- A.
931 N
- B.
913 N
- C.
391 N
- D.
319 N
- 23.
![Determine the vertical component of the reaction on the beam caused by the pin at B. - ProProfs]( "Determine the vertical component of the reaction on the beam caused by the pin at B.")
Determine the vertical component of the reaction on the beam caused by the pin at B.- A.
405 N
- B.
505 N
- C.
540 N
- D.
450 N
- 24.
![What is the reaction of the rocker B on the beam? - ProProfs]( "What is the reaction of the rocker B on the beam?")
What is the reaction of the rocker B on the beam?- A.
4.46 kN
- B.
3.46 kN
- C.
5.46 kN
- D.
6.46 kN
- 25.
![Determine the horizontal component of reaction at the pin A - ProProfs]( "Determine the horizontal component of reaction at the pin A")
Determine the horizontal component of reaction at the pin A- A.
1.83 kN
- B.
2.73 kN
- C.
1.73 kN
- D.
3.73 kN
Questions: 10 | Attempts: 15 | Last updated: Apr 17, 2020
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