IES/ESE Paper (Civil) Prelims Paper II - 2019 | GATE, ISRO & IES/ESE Previous Year Solved Papers - Mechanical Engineering PDF Download

 Page 1


Engtheeing SeNice (11 Exam,2019 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
T.B.C. : VBY-S-CVL 
1111E11 
   
11111111111 	 Test Booklet Series 
   
    
Serial 
C3 1613113.2 
TEST BOOKLET 
CIVIL ENGINEERING 
Time Allowed: Three Hours 
	 Maximum Marks: 300 
INSTRUCTIONS 
IMMEDIATELY AFaR THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT 
THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, 
ETC. IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET. 
Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test 
Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the 
appropriate places in the OMR Answer Sheet. Any omission/discrepancy will render the Answer 
Sheet liable for rejection. 
You have to enter your Roll Number on the 
Test Booklet in the Box provided alongside. 
DO NOT write anything else on the Test Booklet 
This Test Booklet contains 150 items (questions). Each item comprises four responses (answers). You 
will select the response which you want to mark on the Answer Sheet. In case you feel that there is 
more than one correct response, mark the response which you consider the best. In any case, choose 
ONLY ONE response for each item. 
You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions 
in the Answer Sheet. 
All items carry equal marks. 
Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, 
you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your 
Admission Certificate. 
After you have completed filling in all your responses on the Answer Sheet and the examination has 
concluded, you should hand -over to the Invigilator only the Answer Sheet. You are permitted to 
take away with you the Test Booklet. 
Sheets for rough work are appended in the Test Booklet at the end. 
Penalty for wrong answers: 
THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE. 
There are four alternatives for the answer to every question. For each question for which a wrong answer 
has been given by the candidate, one-third (0.33) of the marks assigned to that question will be 
deducted as penalty. 
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given 
answers happens to be correct and there will be same penalty as above to that question. 
If a question is left blank i e no answer is given by the candidate, there will be no penalty for that 
question. 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
VBY-S-CVL 	 ( 1 — A) 
Page 2


Engtheeing SeNice (11 Exam,2019 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
T.B.C. : VBY-S-CVL 
1111E11 
   
11111111111 	 Test Booklet Series 
   
    
Serial 
C3 1613113.2 
TEST BOOKLET 
CIVIL ENGINEERING 
Time Allowed: Three Hours 
	 Maximum Marks: 300 
INSTRUCTIONS 
IMMEDIATELY AFaR THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT 
THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, 
ETC. IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET. 
Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test 
Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the 
appropriate places in the OMR Answer Sheet. Any omission/discrepancy will render the Answer 
Sheet liable for rejection. 
You have to enter your Roll Number on the 
Test Booklet in the Box provided alongside. 
DO NOT write anything else on the Test Booklet 
This Test Booklet contains 150 items (questions). Each item comprises four responses (answers). You 
will select the response which you want to mark on the Answer Sheet. In case you feel that there is 
more than one correct response, mark the response which you consider the best. In any case, choose 
ONLY ONE response for each item. 
You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions 
in the Answer Sheet. 
All items carry equal marks. 
Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, 
you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your 
Admission Certificate. 
After you have completed filling in all your responses on the Answer Sheet and the examination has 
concluded, you should hand -over to the Invigilator only the Answer Sheet. You are permitted to 
take away with you the Test Booklet. 
Sheets for rough work are appended in the Test Booklet at the end. 
Penalty for wrong answers: 
THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE. 
There are four alternatives for the answer to every question. For each question for which a wrong answer 
has been given by the candidate, one-third (0.33) of the marks assigned to that question will be 
deducted as penalty. 
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given 
answers happens to be correct and there will be same penalty as above to that question. 
If a question is left blank i e no answer is given by the candidate, there will be no penalty for that 
question. 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
VBY-S-CVL 	 ( 1 — A) 
1. 	 Which of the following statements are wholly 
correct regarding broken-brick aggregate 
useable in concretes? 
Broken-brick aggregate is obtained 
by crushing waste bricks; and it 
has a density varying between 
1000 kg/m3  — 1200 kg/m3. 
Such aggregate is usable in concrete for 
foundation in light buildings, floorings 
and walkways. 
Such aggregate may also be used in 
light-weight reinforced concrete floors. 
1 and 2 only 
2 and 3 only 
1 and 3 only 
1, 2 and 3 
2. 	 In handling air-entraining admixtures the 
beneficial amount of entrained air depends 
upon certain factors like 
Type and quantity of air-entraining agent 
Water-cement ratio of the mix 
Strength of aggregates 
Extent of compaction of concrete 
1, 2 and" only 
1, 2 and 4 only 
1, 3 and 4 only 
1, 2, 3 and 4 
3. 	 Which one of the following statements is not 
correct with respect to fly ash? 
As part replaceinent of cement in the 
range of 15% — 30%, fly ash reduces the 
strength in the initial period, but once 
the Pozzolanic process sets in, higher 
strength can be obtained. 
Fly ash as a part replacement of sand 
has a beneficial effect on strength even 
at early age. 
Fly ash as a part replacement of sand is 
economical. 
A simultaneous replacement of cement 
and fine aggregates enables the 
strength at a specified age to be 
equalled depending upon the water 
content. 
4. 	 Which one of the following statements is 
not 
correct with respect to the properties of 
cement? 
Highly reactive Pozzolanas enhance the 
early age strength of the composite 
cement. 
Pozzolanic activity refines pore 
structure which decreases electrolytic 
resistance of concrete. 
The expansion due to alkali-silica 
reaction can be controlled by 
replacement of as high as 60% of OPC 
with high-calcium Pozzolana. 
Such high amounts of replacement 
cements result in higher accelerated 
carbonation depths compared to pure 
use of OPC only. 
5. 	 Hydration of which compound is responsible 
for increase in strength of cement in later 
age? 
Tr-calcium Aluminate (C3A) 
Tetra-calcium Alummoferrite (C4AF) 
Tr-calcium Silicate (C35) 
Di-calcium Silicate (C25) 
6. 	 The creep strain of cement attains its 
terminal value by 
1 year 
2 years 
5 years 
6 months 
VBY-S-CVL 	 ( 2 — A) 
Page 3


Engtheeing SeNice (11 Exam,2019 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
T.B.C. : VBY-S-CVL 
1111E11 
   
11111111111 	 Test Booklet Series 
   
    
Serial 
C3 1613113.2 
TEST BOOKLET 
CIVIL ENGINEERING 
Time Allowed: Three Hours 
	 Maximum Marks: 300 
INSTRUCTIONS 
IMMEDIATELY AFaR THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT 
THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, 
ETC. IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET. 
Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test 
Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the 
appropriate places in the OMR Answer Sheet. Any omission/discrepancy will render the Answer 
Sheet liable for rejection. 
You have to enter your Roll Number on the 
Test Booklet in the Box provided alongside. 
DO NOT write anything else on the Test Booklet 
This Test Booklet contains 150 items (questions). Each item comprises four responses (answers). You 
will select the response which you want to mark on the Answer Sheet. In case you feel that there is 
more than one correct response, mark the response which you consider the best. In any case, choose 
ONLY ONE response for each item. 
You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions 
in the Answer Sheet. 
All items carry equal marks. 
Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, 
you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your 
Admission Certificate. 
After you have completed filling in all your responses on the Answer Sheet and the examination has 
concluded, you should hand -over to the Invigilator only the Answer Sheet. You are permitted to 
take away with you the Test Booklet. 
Sheets for rough work are appended in the Test Booklet at the end. 
Penalty for wrong answers: 
THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE. 
There are four alternatives for the answer to every question. For each question for which a wrong answer 
has been given by the candidate, one-third (0.33) of the marks assigned to that question will be 
deducted as penalty. 
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given 
answers happens to be correct and there will be same penalty as above to that question. 
If a question is left blank i e no answer is given by the candidate, there will be no penalty for that 
question. 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
VBY-S-CVL 	 ( 1 — A) 
1. 	 Which of the following statements are wholly 
correct regarding broken-brick aggregate 
useable in concretes? 
Broken-brick aggregate is obtained 
by crushing waste bricks; and it 
has a density varying between 
1000 kg/m3  — 1200 kg/m3. 
Such aggregate is usable in concrete for 
foundation in light buildings, floorings 
and walkways. 
Such aggregate may also be used in 
light-weight reinforced concrete floors. 
1 and 2 only 
2 and 3 only 
1 and 3 only 
1, 2 and 3 
2. 	 In handling air-entraining admixtures the 
beneficial amount of entrained air depends 
upon certain factors like 
Type and quantity of air-entraining agent 
Water-cement ratio of the mix 
Strength of aggregates 
Extent of compaction of concrete 
1, 2 and" only 
1, 2 and 4 only 
1, 3 and 4 only 
1, 2, 3 and 4 
3. 	 Which one of the following statements is not 
correct with respect to fly ash? 
As part replaceinent of cement in the 
range of 15% — 30%, fly ash reduces the 
strength in the initial period, but once 
the Pozzolanic process sets in, higher 
strength can be obtained. 
Fly ash as a part replacement of sand 
has a beneficial effect on strength even 
at early age. 
Fly ash as a part replacement of sand is 
economical. 
A simultaneous replacement of cement 
and fine aggregates enables the 
strength at a specified age to be 
equalled depending upon the water 
content. 
4. 	 Which one of the following statements is 
not 
correct with respect to the properties of 
cement? 
Highly reactive Pozzolanas enhance the 
early age strength of the composite 
cement. 
Pozzolanic activity refines pore 
structure which decreases electrolytic 
resistance of concrete. 
The expansion due to alkali-silica 
reaction can be controlled by 
replacement of as high as 60% of OPC 
with high-calcium Pozzolana. 
Such high amounts of replacement 
cements result in higher accelerated 
carbonation depths compared to pure 
use of OPC only. 
5. 	 Hydration of which compound is responsible 
for increase in strength of cement in later 
age? 
Tr-calcium Aluminate (C3A) 
Tetra-calcium Alummoferrite (C4AF) 
Tr-calcium Silicate (C35) 
Di-calcium Silicate (C25) 
6. 	 The creep strain of cement attains its 
terminal value by 
1 year 
2 years 
5 years 
6 months 
VBY-S-CVL 	 ( 2 — A) 
10. Poisson's ratio of concrete Ii can be 
determined using the formula 
(2 	 nL 	 (1— 2p) (ii- p.) 
(a) 
(1 — p) 
2 nL 	 (1 — 21..0 (1 + 
`472 j_ 	 (1-  µ2 ) 
2 nL 	 (1 — 2p.) (1 + 
7. 	 Which of the following methods will help in 
reducing segregation in concrete? 
1. Not using vibrator to spread the 
concrete 
Reducing the continued vibration 
Improving the cohesion of a lean dry 
mix through addition of a further small 
quantity of water 
1, 2 and 3 
1 and 2 only 
1 and 3 only 
2 and 3 only 
8. On an average, in a 125 mm slump, the 
concrete may lose about (in first one hour) 
15 mm of slump 
25 mm of slump 
40 mm of slump 
50 mm of slump 
9. 	 Permeability in concrete is studied towards 
providing for, or guarding against, which of 
the following features? 
The penetration by materials in solution 
may adversely affect the durability of 
concrete; moreover, aggressive liquids 
'attack' the concrete. 
In case of reinforced concrete, ingress of 
moisture and air will result in corrosion 
of steel leading to an increase in volume 
of steel, resulting in cracking and 
swilling of the concrete cover. 
The moisture penetration depends on 
permeability and if the concrete can 
become saturated with water it is less 
vulnerable to frost action. 
(a) 	 1, 2 and 3 
(h) 	 1 and 2 only 
1 and 3 only 
2 and 3 only  
(2 	 iaL) — (1— 2p) (1 + p.) 
where 
V is pulse velocity, in mm/s, 
n is resonant frequency of longitudinal 
vibration, in Hz, 
L is distance between transducers, in mm. 
11. Whick one 	 of the 	 following 
methods/techniques will be used for placing of 
concrete 'in dewatered 'Caissons or Coffer' 
dams? 
Tremie method 
Placing in bags 
Prepacked concrete 
In-the-dry practice 
12. The minimum cement content (kg/m3) for a 
pre-specified strength of concrete (using 
standard notations) premised on 'free 
water-cement ratio' will be as 
(a) 	 1 	 , 
   
1000 So 	 1000 
Water Content 
Water Cement ratio 
Water Content x Water Cement ratio 
100 F 
C + F 
 
 
 
V 	 (1+ p) 
(b) 
VBY-S-CVL 
( 3—A) 
Page 4


Engtheeing SeNice (11 Exam,2019 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
T.B.C. : VBY-S-CVL 
1111E11 
   
11111111111 	 Test Booklet Series 
   
    
Serial 
C3 1613113.2 
TEST BOOKLET 
CIVIL ENGINEERING 
Time Allowed: Three Hours 
	 Maximum Marks: 300 
INSTRUCTIONS 
IMMEDIATELY AFaR THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT 
THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, 
ETC. IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET. 
Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test 
Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the 
appropriate places in the OMR Answer Sheet. Any omission/discrepancy will render the Answer 
Sheet liable for rejection. 
You have to enter your Roll Number on the 
Test Booklet in the Box provided alongside. 
DO NOT write anything else on the Test Booklet 
This Test Booklet contains 150 items (questions). Each item comprises four responses (answers). You 
will select the response which you want to mark on the Answer Sheet. In case you feel that there is 
more than one correct response, mark the response which you consider the best. In any case, choose 
ONLY ONE response for each item. 
You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions 
in the Answer Sheet. 
All items carry equal marks. 
Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, 
you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your 
Admission Certificate. 
After you have completed filling in all your responses on the Answer Sheet and the examination has 
concluded, you should hand -over to the Invigilator only the Answer Sheet. You are permitted to 
take away with you the Test Booklet. 
Sheets for rough work are appended in the Test Booklet at the end. 
Penalty for wrong answers: 
THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE. 
There are four alternatives for the answer to every question. For each question for which a wrong answer 
has been given by the candidate, one-third (0.33) of the marks assigned to that question will be 
deducted as penalty. 
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given 
answers happens to be correct and there will be same penalty as above to that question. 
If a question is left blank i e no answer is given by the candidate, there will be no penalty for that 
question. 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
VBY-S-CVL 	 ( 1 — A) 
1. 	 Which of the following statements are wholly 
correct regarding broken-brick aggregate 
useable in concretes? 
Broken-brick aggregate is obtained 
by crushing waste bricks; and it 
has a density varying between 
1000 kg/m3  — 1200 kg/m3. 
Such aggregate is usable in concrete for 
foundation in light buildings, floorings 
and walkways. 
Such aggregate may also be used in 
light-weight reinforced concrete floors. 
1 and 2 only 
2 and 3 only 
1 and 3 only 
1, 2 and 3 
2. 	 In handling air-entraining admixtures the 
beneficial amount of entrained air depends 
upon certain factors like 
Type and quantity of air-entraining agent 
Water-cement ratio of the mix 
Strength of aggregates 
Extent of compaction of concrete 
1, 2 and" only 
1, 2 and 4 only 
1, 3 and 4 only 
1, 2, 3 and 4 
3. 	 Which one of the following statements is not 
correct with respect to fly ash? 
As part replaceinent of cement in the 
range of 15% — 30%, fly ash reduces the 
strength in the initial period, but once 
the Pozzolanic process sets in, higher 
strength can be obtained. 
Fly ash as a part replacement of sand 
has a beneficial effect on strength even 
at early age. 
Fly ash as a part replacement of sand is 
economical. 
A simultaneous replacement of cement 
and fine aggregates enables the 
strength at a specified age to be 
equalled depending upon the water 
content. 
4. 	 Which one of the following statements is 
not 
correct with respect to the properties of 
cement? 
Highly reactive Pozzolanas enhance the 
early age strength of the composite 
cement. 
Pozzolanic activity refines pore 
structure which decreases electrolytic 
resistance of concrete. 
The expansion due to alkali-silica 
reaction can be controlled by 
replacement of as high as 60% of OPC 
with high-calcium Pozzolana. 
Such high amounts of replacement 
cements result in higher accelerated 
carbonation depths compared to pure 
use of OPC only. 
5. 	 Hydration of which compound is responsible 
for increase in strength of cement in later 
age? 
Tr-calcium Aluminate (C3A) 
Tetra-calcium Alummoferrite (C4AF) 
Tr-calcium Silicate (C35) 
Di-calcium Silicate (C25) 
6. 	 The creep strain of cement attains its 
terminal value by 
1 year 
2 years 
5 years 
6 months 
VBY-S-CVL 	 ( 2 — A) 
10. Poisson's ratio of concrete Ii can be 
determined using the formula 
(2 	 nL 	 (1— 2p) (ii- p.) 
(a) 
(1 — p) 
2 nL 	 (1 — 21..0 (1 + 
`472 j_ 	 (1-  µ2 ) 
2 nL 	 (1 — 2p.) (1 + 
7. 	 Which of the following methods will help in 
reducing segregation in concrete? 
1. Not using vibrator to spread the 
concrete 
Reducing the continued vibration 
Improving the cohesion of a lean dry 
mix through addition of a further small 
quantity of water 
1, 2 and 3 
1 and 2 only 
1 and 3 only 
2 and 3 only 
8. On an average, in a 125 mm slump, the 
concrete may lose about (in first one hour) 
15 mm of slump 
25 mm of slump 
40 mm of slump 
50 mm of slump 
9. 	 Permeability in concrete is studied towards 
providing for, or guarding against, which of 
the following features? 
The penetration by materials in solution 
may adversely affect the durability of 
concrete; moreover, aggressive liquids 
'attack' the concrete. 
In case of reinforced concrete, ingress of 
moisture and air will result in corrosion 
of steel leading to an increase in volume 
of steel, resulting in cracking and 
swilling of the concrete cover. 
The moisture penetration depends on 
permeability and if the concrete can 
become saturated with water it is less 
vulnerable to frost action. 
(a) 	 1, 2 and 3 
(h) 	 1 and 2 only 
1 and 3 only 
2 and 3 only  
(2 	 iaL) — (1— 2p) (1 + p.) 
where 
V is pulse velocity, in mm/s, 
n is resonant frequency of longitudinal 
vibration, in Hz, 
L is distance between transducers, in mm. 
11. Whick one 	 of the 	 following 
methods/techniques will be used for placing of 
concrete 'in dewatered 'Caissons or Coffer' 
dams? 
Tremie method 
Placing in bags 
Prepacked concrete 
In-the-dry practice 
12. The minimum cement content (kg/m3) for a 
pre-specified strength of concrete (using 
standard notations) premised on 'free 
water-cement ratio' will be as 
(a) 	 1 	 , 
   
1000 So 	 1000 
Water Content 
Water Cement ratio 
Water Content x Water Cement ratio 
100 F 
C + F 
 
 
 
V 	 (1+ p) 
(b) 
VBY-S-CVL 
( 3—A) 
	 13. 	 A bar specimen of 36 mm diameter is 
subjected to a pull of 90 kN during a tension 
test. The extension on a gauge length of 
200 rum is measured to be 0-089 mm and the 
change in diameter to be 0-0046 mm. The 
Poisson's ratio will be 
0-287 
0-265 
0-253 
0-241 
14. A steel rod 15 m long is at a temperature of 
15°C. The values of a = 12 x 10-6m and 
E = 200 GN/m2  are adopted. When the 
temperature is raised to 65°C, what is the free 
expansion of the length; and if this expansion 
of the rod is fully prevented, what is the 
temperature stress produced? 
5 mm and 120 MN/m2  
9 mm and 120 MN/m2  
5 mm and 150 MN/m2  
9 mm and 150 MN/m2  
	 15. 	 A bar of uniform rectangular section of area A 
is subjected to an axial tensile load P; its 
Young's modulus is E and its Poisson's ratio is 
Its volumetric strain e is 
Al i ; (1 + — 3  
AE P  (1 + fl1) 
AP (1 - — m 2  ) 
AE P  - e)  
16. The normal stresses on two mutually 
perpendicular planes are 140 N/mm2  (Tensile) 
and 70 N/mm2  (Tensile). If the maximum 
shear stress is 45 N/mm2, the shear stress on 
these planes will be nearly 
20-9 N/mm2  
24-6 N/mm2  
28-3 N/mm2  
32-0 N/mm2  
17. The normal stresses on the two mutually 
perpendicular planes at a point are 120 MPa 
(Tensile) and 60 MPa (Tensile). If the shear 
stress across these planes is 30 MPa, the 
principal stresses will be nearly 
124 MPa (Tensile) and 24 MPa 
(Compressive) 
132 MPa (Tensile) and 24 MPa 
(Compressive) 
124 MPa (Tensile) and 48 MPa (Tensile) 
132 MPa (Tensile) and 48 MPa (Tensile) 
18. 	 At a point in a material, the stresses acting on 
two planes at right angles to each other are : 
az  = 120 MPa and ay  = -200 MPa and 
= - 80 MPa. The maximum shear stress on 
the element will be nearly 
142 MPa 
155 MPa 
167 MPa 
179 MPa 
VBY-S-CVL 	 (4-A) 
Page 5


Engtheeing SeNice (11 Exam,2019 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
T.B.C. : VBY-S-CVL 
1111E11 
   
11111111111 	 Test Booklet Series 
   
    
Serial 
C3 1613113.2 
TEST BOOKLET 
CIVIL ENGINEERING 
Time Allowed: Three Hours 
	 Maximum Marks: 300 
INSTRUCTIONS 
IMMEDIATELY AFaR THE COMMENCEMENT OF THE EXAMINATION, YOU SHOULD CHECK THAT 
THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS, 
ETC. IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET. 
Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test 
Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the 
appropriate places in the OMR Answer Sheet. Any omission/discrepancy will render the Answer 
Sheet liable for rejection. 
You have to enter your Roll Number on the 
Test Booklet in the Box provided alongside. 
DO NOT write anything else on the Test Booklet 
This Test Booklet contains 150 items (questions). Each item comprises four responses (answers). You 
will select the response which you want to mark on the Answer Sheet. In case you feel that there is 
more than one correct response, mark the response which you consider the best. In any case, choose 
ONLY ONE response for each item. 
You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions 
in the Answer Sheet. 
All items carry equal marks. 
Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet, 
you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your 
Admission Certificate. 
After you have completed filling in all your responses on the Answer Sheet and the examination has 
concluded, you should hand -over to the Invigilator only the Answer Sheet. You are permitted to 
take away with you the Test Booklet. 
Sheets for rough work are appended in the Test Booklet at the end. 
Penalty for wrong answers: 
THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE. 
There are four alternatives for the answer to every question. For each question for which a wrong answer 
has been given by the candidate, one-third (0.33) of the marks assigned to that question will be 
deducted as penalty. 
If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given 
answers happens to be correct and there will be same penalty as above to that question. 
If a question is left blank i e no answer is given by the candidate, there will be no penalty for that 
question. 
DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE ASKED TO DO SO 
VBY-S-CVL 	 ( 1 — A) 
1. 	 Which of the following statements are wholly 
correct regarding broken-brick aggregate 
useable in concretes? 
Broken-brick aggregate is obtained 
by crushing waste bricks; and it 
has a density varying between 
1000 kg/m3  — 1200 kg/m3. 
Such aggregate is usable in concrete for 
foundation in light buildings, floorings 
and walkways. 
Such aggregate may also be used in 
light-weight reinforced concrete floors. 
1 and 2 only 
2 and 3 only 
1 and 3 only 
1, 2 and 3 
2. 	 In handling air-entraining admixtures the 
beneficial amount of entrained air depends 
upon certain factors like 
Type and quantity of air-entraining agent 
Water-cement ratio of the mix 
Strength of aggregates 
Extent of compaction of concrete 
1, 2 and" only 
1, 2 and 4 only 
1, 3 and 4 only 
1, 2, 3 and 4 
3. 	 Which one of the following statements is not 
correct with respect to fly ash? 
As part replaceinent of cement in the 
range of 15% — 30%, fly ash reduces the 
strength in the initial period, but once 
the Pozzolanic process sets in, higher 
strength can be obtained. 
Fly ash as a part replacement of sand 
has a beneficial effect on strength even 
at early age. 
Fly ash as a part replacement of sand is 
economical. 
A simultaneous replacement of cement 
and fine aggregates enables the 
strength at a specified age to be 
equalled depending upon the water 
content. 
4. 	 Which one of the following statements is 
not 
correct with respect to the properties of 
cement? 
Highly reactive Pozzolanas enhance the 
early age strength of the composite 
cement. 
Pozzolanic activity refines pore 
structure which decreases electrolytic 
resistance of concrete. 
The expansion due to alkali-silica 
reaction can be controlled by 
replacement of as high as 60% of OPC 
with high-calcium Pozzolana. 
Such high amounts of replacement 
cements result in higher accelerated 
carbonation depths compared to pure 
use of OPC only. 
5. 	 Hydration of which compound is responsible 
for increase in strength of cement in later 
age? 
Tr-calcium Aluminate (C3A) 
Tetra-calcium Alummoferrite (C4AF) 
Tr-calcium Silicate (C35) 
Di-calcium Silicate (C25) 
6. 	 The creep strain of cement attains its 
terminal value by 
1 year 
2 years 
5 years 
6 months 
VBY-S-CVL 	 ( 2 — A) 
10. Poisson's ratio of concrete Ii can be 
determined using the formula 
(2 	 nL 	 (1— 2p) (ii- p.) 
(a) 
(1 — p) 
2 nL 	 (1 — 21..0 (1 + 
`472 j_ 	 (1-  µ2 ) 
2 nL 	 (1 — 2p.) (1 + 
7. 	 Which of the following methods will help in 
reducing segregation in concrete? 
1. Not using vibrator to spread the 
concrete 
Reducing the continued vibration 
Improving the cohesion of a lean dry 
mix through addition of a further small 
quantity of water 
1, 2 and 3 
1 and 2 only 
1 and 3 only 
2 and 3 only 
8. On an average, in a 125 mm slump, the 
concrete may lose about (in first one hour) 
15 mm of slump 
25 mm of slump 
40 mm of slump 
50 mm of slump 
9. 	 Permeability in concrete is studied towards 
providing for, or guarding against, which of 
the following features? 
The penetration by materials in solution 
may adversely affect the durability of 
concrete; moreover, aggressive liquids 
'attack' the concrete. 
In case of reinforced concrete, ingress of 
moisture and air will result in corrosion 
of steel leading to an increase in volume 
of steel, resulting in cracking and 
swilling of the concrete cover. 
The moisture penetration depends on 
permeability and if the concrete can 
become saturated with water it is less 
vulnerable to frost action. 
(a) 	 1, 2 and 3 
(h) 	 1 and 2 only 
1 and 3 only 
2 and 3 only  
(2 	 iaL) — (1— 2p) (1 + p.) 
where 
V is pulse velocity, in mm/s, 
n is resonant frequency of longitudinal 
vibration, in Hz, 
L is distance between transducers, in mm. 
11. Whick one 	 of the 	 following 
methods/techniques will be used for placing of 
concrete 'in dewatered 'Caissons or Coffer' 
dams? 
Tremie method 
Placing in bags 
Prepacked concrete 
In-the-dry practice 
12. The minimum cement content (kg/m3) for a 
pre-specified strength of concrete (using 
standard notations) premised on 'free 
water-cement ratio' will be as 
(a) 	 1 	 , 
   
1000 So 	 1000 
Water Content 
Water Cement ratio 
Water Content x Water Cement ratio 
100 F 
C + F 
 
 
 
V 	 (1+ p) 
(b) 
VBY-S-CVL 
( 3—A) 
	 13. 	 A bar specimen of 36 mm diameter is 
subjected to a pull of 90 kN during a tension 
test. The extension on a gauge length of 
200 rum is measured to be 0-089 mm and the 
change in diameter to be 0-0046 mm. The 
Poisson's ratio will be 
0-287 
0-265 
0-253 
0-241 
14. A steel rod 15 m long is at a temperature of 
15°C. The values of a = 12 x 10-6m and 
E = 200 GN/m2  are adopted. When the 
temperature is raised to 65°C, what is the free 
expansion of the length; and if this expansion 
of the rod is fully prevented, what is the 
temperature stress produced? 
5 mm and 120 MN/m2  
9 mm and 120 MN/m2  
5 mm and 150 MN/m2  
9 mm and 150 MN/m2  
	 15. 	 A bar of uniform rectangular section of area A 
is subjected to an axial tensile load P; its 
Young's modulus is E and its Poisson's ratio is 
Its volumetric strain e is 
Al i ; (1 + — 3  
AE P  (1 + fl1) 
AP (1 - — m 2  ) 
AE P  - e)  
16. The normal stresses on two mutually 
perpendicular planes are 140 N/mm2  (Tensile) 
and 70 N/mm2  (Tensile). If the maximum 
shear stress is 45 N/mm2, the shear stress on 
these planes will be nearly 
20-9 N/mm2  
24-6 N/mm2  
28-3 N/mm2  
32-0 N/mm2  
17. The normal stresses on the two mutually 
perpendicular planes at a point are 120 MPa 
(Tensile) and 60 MPa (Tensile). If the shear 
stress across these planes is 30 MPa, the 
principal stresses will be nearly 
124 MPa (Tensile) and 24 MPa 
(Compressive) 
132 MPa (Tensile) and 24 MPa 
(Compressive) 
124 MPa (Tensile) and 48 MPa (Tensile) 
132 MPa (Tensile) and 48 MPa (Tensile) 
18. 	 At a point in a material, the stresses acting on 
two planes at right angles to each other are : 
az  = 120 MPa and ay  = -200 MPa and 
= - 80 MPa. The maximum shear stress on 
the element will be nearly 
142 MPa 
155 MPa 
167 MPa 
179 MPa 
VBY-S-CVL 	 (4-A) 
22. Which one of the following statements is 
correct for the rotating shafts transmitting 
power? 
(a) 	 Lower the frequency of shaft lower will 
be the torque 
19. The principal stresses in the wall of a 
container are 40 MN/mm2  and 80 MN/mm2  
The normal makes an angle of 30
0 
 with a 
direction of maximum principal stress. The 
resultant stresses (in magnitude) in the plane 
will be nearly 
40 MN/mm2  
40 MN/mm2  
Higher the frequency of shaft lower will 
be the torque 
Frequency of the shaft does not 
influence the torque 
Higher the frequency of shaft higher 
will be the torque 
84 MN/mm2  
72 MN/mm2  
64 MN/mm2  
58 MN/mm2  
23. The maximum shear stress induced in a solid 
circular shaft of diameter 15 cm, when the 
shaft transmits 150 kW ower at 180 rpm, 
will be 
20. The change in shearing force between two 
points on the beam is equal to the area of 
Loading diagram between the two 
points 
Shear force diagram between the two 
points 
Bending moment diagram between the 
two points 
M/EI diagram between the two points 
21. Which one of the following statements 
specifies shear flow? 
Flow of shear force along the beam 
It is the product of the shear stress at 
any level and the corresponding width b 
(of the section) 
Unbalanced force on any side of given 
section divided by area of section 
The deformation at any level due to 
sudden variation in shear stress 
16 N/mm2  
14 N/mm2  
12 N/mm2  
10 N/mm2  
24. 	 A closely coiled helical spring made of 10 mm 
diameter steel wire has 15 coils of 100 mm 
mean diameter. The spring is subjected to an 
axial load of 100 N. For a modulus of rigidity 
of 816 x 104  N/mm2, the stiffness of the 
spring will be nearly 
5-9 N/mm 
6-8 N/mm 
7-7 N/mm 
8-8 N/mm 
VBY-S-CVL 	 ( 5—A) .