GATE 2017 CE (CE1) – Previous Year Questions with Solutions
All 65 questions of GATE 2017 CE (CE1) with answers and explanations. Read each question, then practise it by topic or as a full paper.
Practise this paper in The GATE Grind →
- Question 1 – The bacteria in milk are destroyed when it heated to 80 degree Celsius.
- Question 2 – with someone else’s email account is now a very serious offence.
- Question 3 – All benches are beds. No bed is a bulb. Some bulbs are lamps. Which can be inferred? (i) Some beds are lamps. (ii) Some lamps are beds.
- Question 4 – If the radius of a right circular cone increases by 50%, its volume increases by
- Question 5 – The numbers 1,x,x,x,y,y,9,16,18 are in increasing order. Their mean and median are equal, and also equal to twice the mode. Find y.
- Question 6 – The foundation of an old concert hall was feared to be affected by construction of a new metro line. Modern tunnelling technology tried to mitigate…
- Question 7 – Hostel rooms are allotted in order of seniority. Existing occupants move if they obtain a room on their preference list; lower-ranked preferences are…
- Question 8 – Find the last digit of (2171)7+(2172)9+(2173)11+(2174)13.
- Question 9 – Machines M1 and M2 can each perform any one of jobs P, Q, R, S on one object at a time. Their processing times are 30, 20, 60, 15 minutes…
- Question 10 – The stacked bar chart shows monthly chair, table and bed production by five carpenters. Which statements are true? (i) Beds made by C2 equal tables…
- Question 11 – Matrix P is the inverse of matrix Q. If I is the identity matrix, which statement is correct?
- Question 12 – The number of parameters in univariate exponential and Gaussian distributions, respectively, are
- Question 13 – For x(-,), let f(x)=e-x-e-x. The indefinite integral g(x)= f(x)\,dx is equal to (up to an additive constant)
- Question 14 – An elastic bar of length L, uniform area A, thermal-expansion coefficient and Young’s modulus E is fixed at both ends. A temperature increase T causes…
- Question 15 – A simply supported beam carries a uniformly distributed load. Which statement is true?
- Question 16 – According to IS 456:2000, which statement about the balanced-section neutral-axis depth x u,bal of a reinforced-concrete section is correct?
- Question 17 – A two-hinged parabolic arch of span L carries a uniformly distributed load of intensity q per unit horizontal length over its entire span, as shown.…
- Question 18 – Match the soil strength changes to their responsible properties/processes. P: regain with time; Q: loss due to cyclic loading; R: loss due to upward…
- Question 19 – A soil sample is subjected to hydrostatic pressure . The Mohr circle for any point is
- Question 20 – A strip footing rests on the ground surface of purely clayey soil with undrained cohesion c u. Its ultimate bearing capacity is
- Question 21 – A uniformly distributed line load of 500 kN/m acts on the ground surface. Using Boussinesq theory, find the ratio of vertical stress at depth 2 m to…
- Question 22 – For steady incompressible laminar flow between two infinite parallel stationary plates, the shear-stress variation is
- Question 23 – The reaction rate involving reactants A and B is -k[A][B]. Which condition gives a first-order reaction?
- Question 24 – Wastewater rich in biodegradable organics enters a flowing river at S. If river-water aeration is slower than degradation of the organics, where is…
- Question 25 – Which of the following is NOT present in acid rain in the conventional classification used here?
- Question 26 – Superelevation e is provided on a circular horizontal curve so that a vehicle can stop on the curve without sliding. With design speed v and maximum…
- Question 27 – A new airport has elevation 535 m above mean sea level, reference temperature 22.65°C and effective runway gradient 1%. The design aircraft needs 2000…
- Question 28 – An electronic distance-measuring instrument has accuracy (a\ mm+b\ ppm). Which statement is correct?
- Question 29 – The number of spectral bands in the Enhanced Thematic Mapper sensor on Landsat-7 is
- Question 30 – For the PDE 32 x2+B2 x y+32 y2+4=0, find B2 for a parabolic equation.
- Question 31 – Evaluate x0 xx2-x.
- Question 32 – A 3 m thick clay layer has an initial uniform excess pore pressure of 145 kPa, drains into sand above, and rests on an impermeable stratum. The…
- Question 33 – A triangular pipe network is shown. Head loss in each pipe is h f=rQ1.8 in consistent units. Pipe AB has r=1 and BC has r=2. A supply of 100 at A is…
- Question 34 – A 2-hour unit hydrograph has ordinates at times 0, 1, 2, 3, 4 hours of 0, 5, 12, 25, 41 m³/s respectively. Find the ordinate in m³/s of the…
- Question 35 – Vehicles arrive according to a Poisson process at 900 vehicles/hour. A gap is the time between consecutive point-vehicle arrivals. Find the…
- Question 36 – For f(x)=a+bx on 0 x1 to be a valid probability density, which statement is correct?
- Question 37 – The solution of dQ/dt+Q=1 with Q(0)=0 is
- Question 38 – For the matrix A=pmatrix5&-1\\4&1pmatrix, which statement about eigenvalues and eigenvectors is true?
- Question 39 – The planar truss tower shown has statements P: externally determinate; Q: external static indeterminacy 1; R: external static indeterminacy 2; S:…
- Question 40 – Match canal outlet types to hydraulic attributes. P non-modular; Q semi-modular; R modular. 1 discharge depends on both supply-canal and…
- Question 41 – A 1 m wide rectangular channel has bed slope 0.0016 and Manning coefficient 0.04. Its normal depth is 0.5 m. At a section with gradually varied flow…
- Question 42 – For a pavement aggregate test: oven-dry mass in air = 1000 g; saturated surface-dry mass in air = 1025 g; saturated surface-dry mass under water = 625…
- Question 43 – The figure shows queue length versus time at a signalized intersection with a 96 s cycle. At t=0 the signal turns red. Effective green lasts 36 s and…
- Question 44 – A horizontal highway curve has radius 120 m, design speed 60 km/h and lateral-friction coefficient 0.15. Assuming full friction, find the required…
- Question 45 – Observed fore/back bearings are PQ 46°15′ / QP 226°15′; QR 108°15′ / RQ 286°15′; RS 201°30′ / SR 20°30′; ST 321°45′ / TS 141°45′. Which station(s) are…
- Question 46 – A soil has natural moisture content 18%, liquid limit 60%, plastic limit 25% and clay-sized fraction 25%. Its liquidity index and Skempton activity,…
- Question 47 – Solve du/dt=3t2+1, with u(0)=0, numerically using forward Euler with step t=2. Find the absolute error at the end of the first step.
- Question 48 – A pretensioned rectangular concrete beam is 150 mm wide and 300 mm deep. Three straight tendons, each 50 mm² in area, are initially stressed to 1200…
- Question 49 – A stepped linear-elastic bar carries an axial tensile load of 1 kN. Segment 1 has A 1=100 mm², E 1=2105 MPa and L 1=400 mm. Segment 2 has A 2=60 mm²,…
- Question 50 – For beam ABC shown, A is fixed, B and C are simple supports, AB = 4 m and BC = 6 m. AB carries 30 kN/m uniformly. The applied moment M is chosen so…
- Question 51 – Beam ABCD has a simple support at A, an internal hinge at B, and simple supports at C and D. AB = BC = 4 m and CD = 10 m. For a moving concentrated…
- Question 52 – Two linear-elastic columns have E=2105 MPa, square cross-section of side 10 mm and length 1 m. Column 1 is fixed-free; column 2 is fixed-pinned. Using…
- Question 53 – A column carries a 10 kN load through the bracket shown, at eccentricity 15 cm from the bolt-group centre. The four-bolt geometry, 10 cm dimensions…
- Question 54 – A 2 kg particle initially travels at 1.5 m/s. A force f(t)=3t2 N acts in its direction of motion for 2 seconds, with t in seconds. Find the velocity…
- Question 55 – A project has activities with predecessors and durations in days: P (none, 6); Q (P, 15); R (Q and T, 12); S (R, 16); T (P, 10); U (Q and T, 14); V…
- Question 56 – H-piles are driven to 7 m depth in homogeneous sand. Pile surface area is 3 m² per metre length. The effective friction angle is 32° and wall-friction…
- Question 57 – The infinite saturated sand slope shown is at impending sliding failure. Its angle is 20°, vertical layer thickness is 5 m and saturated unit weight…
- Question 58 – A sluice gate in a horizontal channel of unit width has upstream and downstream depths of 1.0 m and 0.2 m. Assume a smooth transition with no energy…
- Question 59 – Water passes through the horizontal 90° bend and nozzle shown, discharging to the atmosphere. Gauge pressure at section 1–1 is 140 kPa. Inlet diameter…
- Question 60 – A consolidated-undrained triaxial compression test on normally consolidated clay has confining pressure 100 kPa, deviator stress at failure 80 kPa and…
- Question 61 – A 2-hour storm produces a flood hydrograph peak of 200 m³/s with baseflow 20 m³/s. Spatially averaged rainfall is 2 cm over the storm and average loss…
- Question 62 – Four independent sound sources have levels 60, 69, 70 and 79 dB. Find the equivalent combined sound power level in dB.
- Question 63 – Spherical grit particles of radius 0.01 mm and specific gravity 3.0 are to be separated in a settling chamber. Given g=9.81 m/s², liquid density 1000…
- Question 64 – Two wastewater streams A and B have identical ultimate BOD and mix to form stream C. Stream A is at 20°C and stream C at 10°C. A has 5-day BOD 50 mg/L…
- Question 65 – Wastewater of organic concentration 54 mg/L flows at 0.8 m³/day through a tank of dimensions 2 m × 4 m × 2 m. The contents are completely mixed and…