Download JNTUK (Jawaharlal Nehru Technological University Kakinada (JNTU kakinada)) B-Tech 2020 R19 CE 1101 Engineering Mechanics Model Previous Question Paper
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
FirstRanker.com - FirstRanker's Choice
9
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
10
UNIT-II
3. Solve for the Forces in all the members of the trusssupported on roller
at A and hinge at B.
2 K3 15
OR
4. a). Two identical rollers, each of weight Q = 100 kg are supported by an
inclined plane and a vertical wall as shown in Fig. Applying conditions
of equilibrium, determine the reactions at points of support A, B and C.
assume the surfaces are smooth.
2 K3 8
FirstRanker.com - FirstRanker's Choice
9
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
10
UNIT-II
3. Solve for the Forces in all the members of the trusssupported on roller
at A and hinge at B.
2 K3 15
OR
4. a). Two identical rollers, each of weight Q = 100 kg are supported by an
inclined plane and a vertical wall as shown in Fig. Applying conditions
of equilibrium, determine the reactions at points of support A, B and C.
assume the surfaces are smooth.
2 K3 8
11
b). Referring to the figure, the coefficients of friction are as follows: 0.25 at floor,
0.3 at the wall and 0.2 between the blocks. Determine the minimum value of a
horizontal force ?P? applied to the lower block that will hold the system in
equilibrium.
2 K3 7
UNIT-III
5. Determine the reactions at supports A, B and C for the loaded beam
shown in Figure below. Use virtual work method only.
3 K3 15
OR
D
30
0
C
B
A
Q
Q
Fig. 3
4 m
40 kN
E
D
20 kN/m
C
A
B
2 m 2 m 2 m 3 m
500 N
60
0
P
1000 N
FirstRanker.com - FirstRanker's Choice
9
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
10
UNIT-II
3. Solve for the Forces in all the members of the trusssupported on roller
at A and hinge at B.
2 K3 15
OR
4. a). Two identical rollers, each of weight Q = 100 kg are supported by an
inclined plane and a vertical wall as shown in Fig. Applying conditions
of equilibrium, determine the reactions at points of support A, B and C.
assume the surfaces are smooth.
2 K3 8
11
b). Referring to the figure, the coefficients of friction are as follows: 0.25 at floor,
0.3 at the wall and 0.2 between the blocks. Determine the minimum value of a
horizontal force ?P? applied to the lower block that will hold the system in
equilibrium.
2 K3 7
UNIT-III
5. Determine the reactions at supports A, B and C for the loaded beam
shown in Figure below. Use virtual work method only.
3 K3 15
OR
D
30
0
C
B
A
Q
Q
Fig. 3
4 m
40 kN
E
D
20 kN/m
C
A
B
2 m 2 m 2 m 3 m
500 N
60
0
P
1000 N
12
6. Use virtual work method to determine the tension in the cable in terms
of ? for the arrangement shown below.
3 K3 15
UNIT-IV
7. a). A particle moves along a straight line. Its motion is represented by the
equation S = 16t + 4t
2
- 3t
3
where, S is in meters and t is in Seconds,
Determine
a. Displacement, velocity and acceleration 2 seconds after start:
b. Displacement and acceleration when velocity is zero and
c. Displacement and velocity when acceleration is zero
4 K3 8
b). A stone dropped into a well is heard to strike the water after 4 seconds. Find
the depth of the well, if the velocity of snd is 350 m/sec.
4 K3 7
OR
8. a). Find the height of the tower from top of which an object falls freely and
during the last second of its motion ,the object travels a distance is equal to
2/3 of height of the tower.g =9.81 m/sec
2
4 K3 8
b). A gun is fired from the top of a hill 100m above the sea level. Ten seconds
later the bullet is fnd to hit the warship 1000m away from the position of
the gun. Determine the velocity and angle of projection of the bullet. With
what velocity bullet strikes the ship?
4 K3 7
UNIT-V
9. a). Find the tension S in the string during the motion of the system shown
in fig. If W
1
=200 N and W
2
=100 N, the system is in the vertical plane
and coefficient of friction between the inclined plane and block W
1
is ?
=0.2. Assume the pulley is witht weight and friction.
5 K3 8
Cable
?? 2
E D
C
A
B
P
? ?
?? 2
?? 2
?? 2
FirstRanker.com - FirstRanker's Choice
9
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
10
UNIT-II
3. Solve for the Forces in all the members of the trusssupported on roller
at A and hinge at B.
2 K3 15
OR
4. a). Two identical rollers, each of weight Q = 100 kg are supported by an
inclined plane and a vertical wall as shown in Fig. Applying conditions
of equilibrium, determine the reactions at points of support A, B and C.
assume the surfaces are smooth.
2 K3 8
11
b). Referring to the figure, the coefficients of friction are as follows: 0.25 at floor,
0.3 at the wall and 0.2 between the blocks. Determine the minimum value of a
horizontal force ?P? applied to the lower block that will hold the system in
equilibrium.
2 K3 7
UNIT-III
5. Determine the reactions at supports A, B and C for the loaded beam
shown in Figure below. Use virtual work method only.
3 K3 15
OR
D
30
0
C
B
A
Q
Q
Fig. 3
4 m
40 kN
E
D
20 kN/m
C
A
B
2 m 2 m 2 m 3 m
500 N
60
0
P
1000 N
12
6. Use virtual work method to determine the tension in the cable in terms
of ? for the arrangement shown below.
3 K3 15
UNIT-IV
7. a). A particle moves along a straight line. Its motion is represented by the
equation S = 16t + 4t
2
- 3t
3
where, S is in meters and t is in Seconds,
Determine
a. Displacement, velocity and acceleration 2 seconds after start:
b. Displacement and acceleration when velocity is zero and
c. Displacement and velocity when acceleration is zero
4 K3 8
b). A stone dropped into a well is heard to strike the water after 4 seconds. Find
the depth of the well, if the velocity of snd is 350 m/sec.
4 K3 7
OR
8. a). Find the height of the tower from top of which an object falls freely and
during the last second of its motion ,the object travels a distance is equal to
2/3 of height of the tower.g =9.81 m/sec
2
4 K3 8
b). A gun is fired from the top of a hill 100m above the sea level. Ten seconds
later the bullet is fnd to hit the warship 1000m away from the position of
the gun. Determine the velocity and angle of projection of the bullet. With
what velocity bullet strikes the ship?
4 K3 7
UNIT-V
9. a). Find the tension S in the string during the motion of the system shown
in fig. If W
1
=200 N and W
2
=100 N, the system is in the vertical plane
and coefficient of friction between the inclined plane and block W
1
is ?
=0.2. Assume the pulley is witht weight and friction.
5 K3 8
Cable
?? 2
E D
C
A
B
P
? ?
?? 2
?? 2
?? 2
13
b). Two bodies, one of which is 400 N with a velocity of 8 m/sec and the
other of 250 N with a velocity of 12 m/sec, move towards each other
along a straight line and collide centrally. Find the velocity of each
body after impact if the coefficient of restitution is 0.8. Also find the
loss in Kinetic Energy?
5 K3 7
OR
10.
a).
Calculate the velocity ?v? of a block weighing 40 N, when it travels
down the 20
0
incline for 16 m at B (Fig 4); if it is given an initial
velocity of 3 m/sec at A. The coefficient of friction between the block
and the inclined plane is 0.2.
5 K3 8
FirstRanker.com - FirstRanker's Choice
9
[B19CE1101]
I B. Tech I Semester (R19) Regular Examinations
ENGINEERING MECHANICS
Civil Engineering
MODEL QUESTION PAPER
TIME: 3Hrs. Max. Marks: 75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
*****
CO KL M
UNIT-I
1. a). The following are the fr forces acting at a point on a body. Find the
resultant and its position.
i. 500N at N 45
o
E
ii. 100N at N 80
o
E
iii. 300N at S 30
o
E
iv. 600N at N 20
o
W
1 K2 8
b). Find the centroid of Z ? section shown in fig. (All units are in mm)
1 K3 7
OR
2. a). State and prove Parallel axis theorem. 1 K2 8
b). Determine moment of inertia for shaded region shown in fig.(All units
are in mm)
1 K3 7
10
UNIT-II
3. Solve for the Forces in all the members of the trusssupported on roller
at A and hinge at B.
2 K3 15
OR
4. a). Two identical rollers, each of weight Q = 100 kg are supported by an
inclined plane and a vertical wall as shown in Fig. Applying conditions
of equilibrium, determine the reactions at points of support A, B and C.
assume the surfaces are smooth.
2 K3 8
11
b). Referring to the figure, the coefficients of friction are as follows: 0.25 at floor,
0.3 at the wall and 0.2 between the blocks. Determine the minimum value of a
horizontal force ?P? applied to the lower block that will hold the system in
equilibrium.
2 K3 7
UNIT-III
5. Determine the reactions at supports A, B and C for the loaded beam
shown in Figure below. Use virtual work method only.
3 K3 15
OR
D
30
0
C
B
A
Q
Q
Fig. 3
4 m
40 kN
E
D
20 kN/m
C
A
B
2 m 2 m 2 m 3 m
500 N
60
0
P
1000 N
12
6. Use virtual work method to determine the tension in the cable in terms
of ? for the arrangement shown below.
3 K3 15
UNIT-IV
7. a). A particle moves along a straight line. Its motion is represented by the
equation S = 16t + 4t
2
- 3t
3
where, S is in meters and t is in Seconds,
Determine
a. Displacement, velocity and acceleration 2 seconds after start:
b. Displacement and acceleration when velocity is zero and
c. Displacement and velocity when acceleration is zero
4 K3 8
b). A stone dropped into a well is heard to strike the water after 4 seconds. Find
the depth of the well, if the velocity of snd is 350 m/sec.
4 K3 7
OR
8. a). Find the height of the tower from top of which an object falls freely and
during the last second of its motion ,the object travels a distance is equal to
2/3 of height of the tower.g =9.81 m/sec
2
4 K3 8
b). A gun is fired from the top of a hill 100m above the sea level. Ten seconds
later the bullet is fnd to hit the warship 1000m away from the position of
the gun. Determine the velocity and angle of projection of the bullet. With
what velocity bullet strikes the ship?
4 K3 7
UNIT-V
9. a). Find the tension S in the string during the motion of the system shown
in fig. If W
1
=200 N and W
2
=100 N, the system is in the vertical plane
and coefficient of friction between the inclined plane and block W
1
is ?
=0.2. Assume the pulley is witht weight and friction.
5 K3 8
Cable
?? 2
E D
C
A
B
P
? ?
?? 2
?? 2
?? 2
13
b). Two bodies, one of which is 400 N with a velocity of 8 m/sec and the
other of 250 N with a velocity of 12 m/sec, move towards each other
along a straight line and collide centrally. Find the velocity of each
body after impact if the coefficient of restitution is 0.8. Also find the
loss in Kinetic Energy?
5 K3 7
OR
10.
a).
Calculate the velocity ?v? of a block weighing 40 N, when it travels
down the 20
0
incline for 16 m at B (Fig 4); if it is given an initial
velocity of 3 m/sec at A. The coefficient of friction between the block
and the inclined plane is 0.2.
5 K3 8
14
b). A 5 m long ladder shown in Fig. begins to slip down the wall at A at a
rate of 1 m/sec. Find the location of the instantanes centre of rotation
of the ladder. Also, find the velocity of point B at the base of the ladder
using instantanes centre method.
5 K3 7
FirstRanker.com - FirstRanker's Choice
This post was last modified on 28 April 2020