gpsc study material

“Study MaterialUseful for All Civil Engineering

Exams”.Prepared by,

Sujith Velloor SLecturer

Civil Engineering Department.Engineering College Tuwa

“Learning gives u creativity, creativity leads to thinking, thinking provides knowledge, knowleage makes u great”…………………………..APJ ABDUL KALAM

Preparations……….

1. The main reinforcement in a heel of cantilever retaining wall is placed atTop of heel slab.

2. Which of the following oxide component is maximum in OPC cement Calcium.

3. According to IS:456, the partial safety ˠf for imposed load for the deflection check for load combination DL+IL shall be 1.0

4. The compressive strength of cement mortar is generally tested on 70.7mm Cubes

5. Product of AE is called Axial Rigidity.

6. If the diameter of circular column is d its kernel will have diameter d/4.


7. The typical value of angle of shearing resistance of sandy soil could be 30 degree.

8. The unit coefficient of sub grade rection is kN/m2/m

9. Which of the following factor is controlling local buckling in web d/tw

10.What is the value of ˠmo in equation Tdg=Agfy/ ˠmo used to find The design strength of memberas under axial tension as governed by yielding of gross section of steel member 1.1.

11.Deflection in RCC beam can be controlled by,

Increasing area of compression R/F & decreasing area of Tension R/F.


12.A shape of ISMB250 will be approximately 1.00

13.Which of the following steel plate section has maximum width to thickness ratio slender.

14.For RCC beam if Mu>Mbal for a given section materials and loading the design of section shall be done as, Doubly under reinforced section

15.For any soil sample porosity will be always less than void ratio.

16.Property of soil to regaining of portion of strength lost due to remolding with respect to time is known as thixotropy.

17.As per IS classification SM soil means Silty sand


18. Compaction factor test is carried out on concrete to find its workability

19. An assembly of copper rod tightly fitted inside with steel tube is heated beyond standard temperature. Knowing that, ᾳc>ᾳs, then Rod will experience compression and tube will experience tension.

20. According to philosophy of earthquake resistance design building shall not damage due to moderate earthquake.

21. Critical section for punching shear in RCC footing is taken at its distance half the effective depth from faces of column.

22. Gauge distance in steel joint is defined as spacing between adjacent parallel lines of fasteners, transverse to direction of load.


23. Maximum allowable settlement as per IS 1904 in case of raft foundation of building resting on sand is 75mm

24. Maximum absolute bending moment due to train wheel load on simply supported girder occurs always under wheel load

25.An equation for required diameter of soild circular shaft subject to torque T Nm & corresponding to maximum shearing fs N/mm2 is 10(16T/∏fs)1/3.

26.Hoop stress induced in thin cylinder shell by winding it by wire under tension will be Compressive.


27. Negative skin in pile is considered when pile is constructed through a filled material.

28. For three hinged parabolic arch of span L & subjected to vertical uniformly distributed load w bending moment at a distance L/4 from support will be zero.

29.If an angle of shearing resistance of cohesion less backfill is 30 ratio of resultant passive pressure to active pressure will be 9.

30. The measured distance recorded is 300m when measured by 30m metric chain which was 0.1m shorter than standard length. What shall be actual distance 299.0m.


31. Normally cement packed in gunny bags have capacity 0.035m3.

32. A bar of length L, width b and thickness t is subjected to an axial pull P. what shall be resulting volumetric strain,if poisson ratio Is 𝜇 and 𝜖 is longitudinal strain 𝝐(1-2 𝝁)

32 In case of body immerse in a moving fluid the component of total force in the direction of motion is called lift

33. Shear stress required to produce unit rate of angular deformation is called dynamic viscosity.

34. Pressure inside a soap bubble is greater than pressure outside bubble


35. For the most economical triangular channel section depth of flow should be equal to half the width.

36.Which of following is an tangential flow turbine pelton.

37. Mach number is ratio of inertia force to elastic force.

38. Euler number is ratio of inertia force to pressure force.

39.Froude number is ratio of inertia force to gravity force.

40. Weber is ratio of inertia force to surface tension.

41. Reynold number is ratio of inertia force to viscous force.


42.Fluid flow in which velocity of flow does not change wrt time is called steady flow.

43. Specfic capacity of well is defined as discharge per unit drawn

44.A geological formation which is essential impermeable for flow of water even through it may contain water pores is called Aquiclude.

45.A geological formation which is essential permeable for flow of water contain water pores is called Aquifer.

46.A photometer is used to measure Transpiration.

47. The primary equation used in all hydrologic flood routing is Continuity Equation.


48. Maximum discharge that be carried by major distributary is 5cumec.

49. In case of critical slope of channel bottom the relationship between normal depth and critical depth Yn=Yc

50. For standing crops in undulating sandy fields the best method of irrigation is Sprinkler irrigation.

51. Standard projected flood as compared to probable maximum flood is smaller.

52. Most commonly adopted pumps in waste water treatment plant are Centrifugal pumps


53. Suspend solid present in water may give colour to water which is known as apparent colour.

54. Desirable limit of residual chlorine in drinking water is 0.2mg/l.

55. A water having pH=9 will have hydrogen ion concentration equal to 10−9mol/l

56. Dental caries in children may be caused due to water supply which are deficient in fluoride.

57. Flow through period of sedimentation tank when compared to its detention time is always less.


58. Iron & manganese can be removed from water by aeration followed by coagulation.

59. Design technique adopted in design of large water supply networks an and aid to simplify & separate smaller loops is equivalent pipe method.

60. Which of the following physical parameter(odour, turbidity & hardness) of water temperature.

61. A scour valve is provided in a water distribution system at LOW POINT


62. Limit of COD for industrial effluent to be discharge in inland surface water is 250mg/lit

63. The suitable method for fore casting population for young and a rapidly developing city is geometric mean method

64. During temperature inversion in atmosphere air pollutants tends to accumulate below inversion layer

65. Acceptance out-door noise level in dB for industrial area as per IS code is 50-60dB.

66. Leachate is liquid that comes out of sanitary landfill.


67. Value of ruling gradient recommended by IRC for road in plain 1 in 30.

68.Which types of conflict can be avided by providing rotary intersection crossing conflict

69.As per IRC pedestrian green time required for major & minor road are calculated on base of walking speed of 1.2m/sec.

70.A minimum value of ductility as ISI for bitumen grade 45 above is 75cm.

71.Tie bars used in RCC pavement across longitudinal joints


72. Overturning of vehicles on curve can be avoided by using a Transition curve

73.Bowditch rule is used for balancing traverse when linear measurement are more precise than angular measurements.

74. Systematic errors are called cumulative errors

75. All marking on taxiways according to I.C.A.O will have yellow colour

76. Width of entrance of harbor is restricted to 180m

77. Condition of stable equilibrium for floating body is metacenter(M) is above centre of gravity(G)


78. The line of collimination is defined as elevation of line of right when levelling instrument is temporarily adjusted.

79. Subtense bar is used for measurement of horizontal distance in undulated area.

80.Bernoulli eq. is derived making assumption that flow is steady,incompressible,irrotational & ideal fluid

81. Coefficient of discharge Cd in terms of Cv and Cc is Cd= Cv * Cc

82. Hydraulic Gradient Line (HGL) represent sum of pressure & datum head.


83. Rate of flow through a V notch varies as H 𝟓 𝟐.

84. Rate of flow through a rectangular notch varies as H 𝟑 𝟐

85. Hydraulic ram is a pump which works on principle of water hammer

86. Compaction test as compact effort increase optimum moisture decrease

87. Which of the following type of soil is not recommended for structure earth fills organic soils.

88.For soil containing soluable salts specific gravity is determined using white spirit.


89. Flexural strength or tensile strength of concrete M25 as per IS 456-2000 is 3.5N/mm2 (T=0.7√25)

90. As per IS 456-2000 maximum strain in concrete at outermost compression fibre is taken in bounding is 0.0035.

91. As per IS 456-2000 minimum reinforcement for slab if steel is used is 0.12% of total crossectional area

92. In singly reinforced cantilever beams the reinforcing steel bars are placed near top of beam

93. Vicat apparatus is used to determine setting time of cement


94. If water used for bag of cement is 30 liter water cement ratio =0.60

95. Age of tree may be associated with number of annular rings.

96. The type of bond in a brick masonary containing alternate course of streteners & header is called English bond.

97. The wall constructed with stones to protect slope of cutting in natural grounds from action of weathering agents is called breast wall.

98. The window which is provided on sloping roof of building for admitting light into room is called dormer window.

99. The vertical members fixed between steps and hard rail are known as balusters.


100. The formwork from sides of beam/column can be removed after casting concrete one day.

101. The formwork from slab upto 4.5 can be removed after casting concrete seven day.

102. The formwork from slab greater than 4.5 can be removed after casting concrete fourteen day.

103. High tensile steel used for bolts, nut and washers shall have a minimum tensile strength of 58 kg/mm2

104. Critical path lies along activities having total float zero.


105. For administration of road transport, a motor vehicle act was brought in to effect by govt of india is 1939.

106. Road side indicating NO entry is prohibiting sign.

107. Traffic manoeuvre means diverging, crossing & merging.

108. Check line is generally required for accuracy of surveying frame work in chain & tape survey.

109. Two point problem is applicable to plane table survey.

110.Which of following is most accurate method for computation of an area with irregular boundary simpson rule.


111. A line whole circle bearing is 145 degree Its reduced bearing would be S 35 E

112.A vertical wall with width of 1m and height 8m is subjected to water pressure on one side up to top. Total pressure on vertical face of wall would be 32t

113. Device which make use of liquid column for determination of pressure is known as manometer

114. For flow through pipe to be laminar, Reynold number should be <2000.

115. For flow through pipe to be transulent, Reynold number should be between 2000 &4000.


116. For flow through pipe to be turbulent, Reynold number should be >2000.

117. Non load bearing piles are known as sheet piles.

118. Coffer dam structure is a temporary structure to protect construction activities from water.

119. Slope in transverse direction of road to drain off the rain water from the is known as camber.

120. In bridge rocker roller type of bearing provide free sliding & rotation at the end of span.


121. Ideal form of curve for summit curve is parabolic

122. Select strength parameter of concrete used in design of plain jointed cement concrete pavement from the following choice flexural strength.

123. No of vehicles occupying a unit length of lane of road way at given instant usually expressed as vehicle per kilometer is Traffic density.

124. A level surface is defined as a curved surface which at each point is perpendicular to direction of gravity.

125. Total length of stair in horizontal plane including landing is known as run.


126. In Cavity wall cavity width neither be less than 40mm nor more than 100mm

127. Gable roof, hip roof, mansared roof are forms of pitched roof.

128. Horizontal wooden / steel members used to support common rafter of roof when span is larger is known as purlin.

129. Cost which include general office expenses, rent,taxes,supervision& other cost which are indirect expenses & not productive expenses on job is overhead cost.

130. Rock wood glass wool expanded clay are insulating materials


131. Which of the following operation converts limestone into quick lime calcining.

132. Workable building mortar is prepared from water, FA & binding agent.

133. In cement concrete water is added for hydration & workability.

134. Any fluid material that will spread over a solid surface and dry or harden to an adherent coherent, obscuring skin or film is paint.

135. Glass is attacked to hydrofluoric acid.

136. Site preparation soil treatment structural barriers are methods of termite proffing.


137. Which is most common material used as vehicle of paint LINSEED OIL

138. Hydraulic jump occurs when flow changes from super critical state to sub critical state.

139. In open channel float are used to measured surface velocity of water.

140. Grade of concrete suggest compressive strength of cube 15*15*15cm at 28days.

141. When space available is long but narrow in shape which of the following type of stair would be useful straight stair.


142. Formation on curvature of road to avoid skidding/overturning of vehicle is known as super elevation.

143. Velocity, acceleration, force & momentum are vector quanity

144. Force which are having common lines of action are collinear force.

145. Moment of inertia of triangular section is bh3/36

146. Moment of inertia of rectangular section is bd3/12

147. Moment of inertia of circular section is 𝜋D3/64.

148. Ratio of limiting force of friction to normal reaction between two bodies is coefficient of friction(F/Rn).


149. A little consideration will show that body move down the plane, if angle of inclination of plane is equal to angle of friction is known as angle of respone.

150. Velocity of body freely falling down by a distance, h is given by v= 𝟐𝒈𝒉.

151. Modulus of elasticity is ratio of stress to strain.

152. Time of one beat in case of simple pendulum is equal to T=𝝅/ 𝒍/𝒈

153. Strain energy is defined as energy stored in body when stressed upto elastic limit.


154.Work done on rotating body by torque(J) is given by W=J-𝜃

155.Property by which cetain material return back to original position after removal of load or force is called elasticity

156. Point of contraflexure is point where bending moment changes sign.

157. Pressure per unit length of retaining wall is given by

(1/2)w(h)2 (1-sin𝜃/1 + 𝑠𝑖𝑛𝜃)

158. Algebraic sum of moment of all force acting right or left of section is known as bending moments.


159. Slenderness ratio of long column is above 80mm

160. Slenderness ratio of short column is less than 80mm

161. End portion of beam is extended beyond support such beam is known as over hanging beam

162.Triangular section maximum shear stress occurs at 1/3 of height

163.Deflection at centre of simply supported beam carrying point load at center is given as Yc=-WL3/48EI

164.Angle between major & minor principle plane is equal to 90degree

165. Euler formula for crippling load when both ends are hinged(L=l) is given by P=𝝅𝟐𝑬𝑰/𝒍𝟐


166. Euler formula for crippling load when both ends are fixed(L=l/2) is given by P=4𝝅𝟐𝑬𝑰/𝒍𝟐

167. Euler formula for crippling load when one ends are fixed & other free (L=2l) is given by P=𝝅𝟐𝑬𝑰/𝟒𝒍𝟐

168. Euler formula for crippling load when one ends are fixed & other hinged (L=l/√2) is given by P=𝟐𝝅𝟐𝑬𝑰/𝒍𝟐

169. If periodic motion of vibrating body takes place without external forces vibration are known as free vibration.

170.A soil sample has void ratio of o.5 porosity will be close to 33%(n=e/(1+e))


171.Soil that are carried & deposited by rivers are alluvial soil

172.Soil that are carried & deposited by wind are Aeolian soil

173.Soil that are carried & deposited by ice are Glacial soil

174.Soil that are carried & deposited by sea are marine soil

175. Minimum water content at which soil just being to cruble when rolled into thread of 3mm in diameter is known as plastic limit

176.Loan is mixture of sand slit & clay.

177. Zone just above water table(S=100%) is called zone of capillary saturation.


178. Phreatic line in an earth day may be parabolic.

179. Coarse grained soil has void ratio 0.75 & specific gravity is 2.75 The critical gradient at which quick sand condition occurs 1.00 (ic=G-1/1+e)

180. Coefficient of curvature is defined as 𝑪𝒄 = 𝑫𝟑𝟎𝟐 /𝑫𝟔𝟎.𝑫𝟏𝟎

181. Coefficient of uniformity is defined as Cu =𝑫𝟔𝟎/𝑫𝟏𝟎

182. 𝑫𝟏𝟎 is also known as effective curvature

183.Vertical distance between consecutive contours is contour interval

184. Effect of curvature of earth surface is not taken into account if extent of survey is less than 250km2


185. Chain survey is well adopted for small area with open ground

186. Bearing of line is opposite direction of progress of survey is termed as back bearing

187. Stroke is unit of kinematic viscosity

188. Poise is unit of dynamic viscosity

189.The forces whose line of action on in same plane are known as coplanear force.

190. The forces whose line of action on in different plane but meet at one point are known as concurrent forces


191. Levelling deals with measurement in vertical plane

192.Main principle of surveying is to work from whole to part

193. Projecting part of tread beyond face of riser is known as nosing

194.Construction of temporary structure required to support an unsafe structure is called shoring

195.Branch of surveying deal with water bodies is known as Hydrographic surveying.

196. Treatment of water with only chlorine is known as plain chlorination.


197. Rate of change of radial acceleration governs the length of a transition curve.

198. A cantilever beam is one which is supported with one end fixed and other free.

199. Overturning of vehicles on curve can avoided by using a transition curve.

200. Different grade are joined together by vertical curve.

201. Trignometric levelling is method of levelling indirect method.

202. Lowest part of structure which transits load to soil is known as foundation.


203. Turpentine oil is used in paints as thinner

204. Fine adjustment in theodolite is done by tangent screw.

205. U fork & Plumb bob are required for centring

206. A hydrograph representing one cm of run off from rainfall of some unit duration & specific area distribution is known as unit hydrograph

207. Bed of canal is lowered in case of canal syphon

208. Water obtained from tube wells is known as sub-surface water

209. Orifices are used to measure rate of flow / discharge

210.Total depth of water required by crop during entire period crop is known as delta


211. In a barrage crest level kept low with large gates

212.Lime which has the property of setting in water is known as hydraulic lime

213. Bernoulli eq. is applied to venturimeter/orificemeter/pitot tube.

214. Light weight concrete is used for non load bearing walls

215. A pipe used to carry discharge from sanitary fittings(bathroom/kithen) is called west/waste pipe

216. A pipe used to carry discharge from sanitary fittings(laterine) is called soil pipe .


217. A weir generally uses as a spillway of dam is ogee weir

218. Curvature of earth is considered in geodetic surveying

219. Plain cement concrete is strong in taking compressive stress

220. For large scale drawing following scale to be used 1:10

221. Breaking up of cohesion in a mass of concrete is called segregation

222. Strength of concrete depends on w/c ratio

223.Correction for slag always subtractive

224.A horizontal member of stone, concrete or wood provided to give support for vertical members of wooden window is called still.