Explore topic-wise MCQs in Engineering.

This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.

1351.

In PERT, the actual time duration along the critical path for the project completion time is probabilistic. It is usually presumed to follow which one of the following ?

A. Beta distribution
B. Poisson distribution
C. Normal distribution
D. Log-normal distribution.
Answer» B. Poisson distribution
1352.

Why are moorings provided ?

A. For anchoring of ships
B. For towing the ships to the sea
C. For repair of ships
D. For washing of ships and ship boards
Answer» B. For towing the ships to the sea
1353.

Consider the following statements relating to hydraulic gradient line and energy gradient line1. In the case of a fluid flowing in a pipeline, hydraulic gradient line and energy gradient line may coincide.2. The line joining the points representing piezometric heads is known as hydraulic gradient line.3. In the case of ideal fluid, energy gradient line is always horizontal.4. Hydraulic gradient line has a downward slope in the case of flow through pipes.Of these statements :

A. 1, 2 and 3 are correct
B. 1, 3 and 4 are correct
C. 2, 3 and 4 are correct
D. 1, 2 and 4 are correct
Answer» D. 1, 2 and 4 are correct
1354.

Dechlorination of water is achieved by adding

A. sodium thiosulphate
B. sodium sulphate
C. sodium hexametaphosphate
D. sodium bisulphate
Answer» B. sodium sulphate
1355.

On which of the following is the working principle of concrete hammer for non-destructive test based ?

A. Rebound deflections
B. Radioactive waves
C. Ultrasonic pulse
D. Creep-recovery
Answer» B. Radioactive waves
1356.

Given for a soil sample :Degree of saturation = 90%Specific gravity of soil grains = 2.70Void ratio = 0.30The water content of the sample is

A. 10%
B. 13.5%
C. 22.5%
D. 35%
Answer» B. 13.5%
1357.

Earth pressure and resultant possibilities of wall movement are shown in the given diagram. The point marked 'x' in the diagram denotes

A. earth pressure.at rest
B. active earth pressure
C. arching active pressure
D. passive earth pressure
Answer» E.
1358.

A beam of uniform strength refers which one of the following ?

A. A beam in which extreme fibre stresses are same at all cross-sections along the length of the beam.
B. A beam in which the moment of inertia about the axis of bending is constant at all cross-sections of the beam.
C. A beam in which the distribution of bending stress across the depth of cross-section is uniform of all cross-sections of the beam.
D. A beam in which the bending stress is uniform at the maximum bending moment cross-section.
Answer» B. A beam in which the moment of inertia about the axis of bending is constant at all cross-sections of the beam.
1359.

A part of the Newmark's influence chart with four concentric circles is shown in the above figure. If the hatched areas 1 and 2 are loaded separately with the same intensity of loading, then the intensity of pressure yielded

A. By 1 will be more than that yielded by 2
B. By 2 w ill be more than that yielded by 1
C. By 1 and 2 will be equal
D. at the centre will be in inverse proportion to the radii of the two, circles
Answer» D. at the centre will be in inverse proportion to the radii of the two, circles
1360.

Given that g = acceleration due to gravity and R = hydraulic mean depth, the Darcy Weisbach friction factor is related to Manning's rugosity coefficient 'n' as

A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/07-642-1.png">
B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/07-642-2.png">
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/07-642-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/07-642-4.png">
Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/07-642-2.png">
1361.

A symmetrical circular arch of span 25 m with a central rise of 5 is hinged at crown and springings. It carries a point load on the arch in the span between the left hinge and central hinge. If the inclination of the thrust at the right hinge is measured from horizontal, then what is the value of tan ?

A. 2.5
B. 1.0
C. 0.4
D. Not possible to calculate with given data
Answer» D. Not possible to calculate with given data
1362.

The combined motion of rotation and translation may be assumed to be a motion of pure rotation about some centre which goes on changing from time to time. The centre in question is known as

A. Shear centre
B. Meta centre
C. Instantaneous centre
D. Gravitational centre
Answer» D. Gravitational centre
1363.

A train is hauled by 2-8-2 locomotive with 22.5 tonnes load on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive ?

A. 15.0 tonnes
B. 22.5 tonnes
C. 45.0 tonnes
D. 90.0 tonnes
Answer» C. 45.0 tonnes
1364.

Which of the following types of pumps can be used for concreting ?1. Piston operated. 2. Pneumatically operated. 3. Centrifugal operated, with straight blades. 4. Screw type.

A. 1 and 3
B. 1 and 2
C. 1, 3 and 4
D. 2 and 4
Answer» C. 1, 3 and 4
1365.

For medium silt where average grain size is 0.16 mm, Lackey's silt factor is likely to be

A. 0.30
B. 0.45
C. 0.70
D. 1.32
Answer» D. 1.32
1366.

Guide banks are provided to

A. train the flow of a river along a specified course
B. reduce the peak flood discharge
C. confine the width of river
D. increase the water way
Answer» B. reduce the peak flood discharge
1367.

For a circular curve of radius 200 m, the coefficient of lateral friction of 0.15 and the design speed is 40 kmph. The equilibrium superelevation (for equal pressure on inner and outer wheel) would be

A. 21.3
B. 7
C. 6.3
D. 4.6
Answer» D. 4.6
1368.

Which one of the following statements is correct ? The function of an air vessel in a reciprocating pump is to obtain :

A. reduction of suction head
B. rise in delivery head
C. continuous supply of water at uniform rate
D. increase in supply of water
Answer» D. increase in supply of water
1369.

Dolphin is a type of which one of the following ?

A. Pile foundation
B. Isolated footing
C. Raft foundation
D. Caisson
Answer» B. Isolated footing
1370.

Consider for following statements :In an under-reinforced concrete beam, 1. actual depth of neutral axis is less than the critical depth of neutral axis.2. concrete reaches ultimate stress prior to steel reaching the ultimate stress.3. moment of resistance is less than that of balanced sections.4. lever arm of resisting couple is less than that of balanced sections.Which of the statements given above are correct ?

A. 1 and 2
B. 1 and 3
C. 2, 3 and 4
D. 1 and 4
Answer» C. 2, 3 and 4
1371.

What is the appropriate field test to determine the in-situ undrained shear strength of a soft clay ?

A. static cone penetration test
B. standard penetration test
C. Plate load test
D. Vane shear test
Answer» E.
1372.

The process of determining the location of the station (on the map) occupied by the plane table is called as

A. Intersection
B. Three-point problem
C. Traversing
D. Resection
Answer» E.
1373.

Which one of the following correctly expresses the split tensile strength of a circular cylinder of length L and diameter D, subject to a maximum load of P ?

A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1291-1.png">
B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1291-2.png">
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1291-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1291-4.png">
Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1291-4.png">
1374.

If 'A' is the angle formed by two gauge faces, the crossing number will be

A. <i>tan A</i>
B. <i>cot A</i>
C. <i>sec A</i>
D. <i>A rad</i>
Answer» C. <i>sec A</i>
1375.

What is the curve resistance for a 50 tonnes train on a BG track on a 4 curve?

A. 0.05 tonne
B. 0.06 tonne
C. 0.08 tonne
D. 0.01 tonne
Answer» D. 0.01 tonne
1376.

Total elongation of a prismatic bar of length L, weight W, cross-sectional area A and modulus of elasticity E, under its own weight, while hanging vertically, is

A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/91-1100-1.png">
B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/91-1100-2.png">
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/91-1100-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/91-1100-4.png">
Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/91-1100-4.png">
1377.

Couple M is applied at C on a simply supported beam AB. What is the maximum shear force for the beam ?

A. Zero
B. M
C. 2 M/3
D. M/3
Answer» E.
1378.

A beam of square section of side 'a' is plane in the following way :Case I: with two sides horizontalCase II: with a diagonal horizontalThe ratio of the section modulus of Case I that of Case II is

A. 2
B. <span class="root">2</span>
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/95-577-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/95-577-4.png">
Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/95-577-3.png">
1379.

In an otherwise symmetrical portal frame with one end fixed and the other end hinged, the large support sinks by an amount . The fixed and bending moment induced at each end of the horizontal member of the frame due to the sinking of the support will be (given that 'L' is the length of the member and 'E' is the flexural stiffness)

A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-609-1.png">
B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-609-2.png">
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-609-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-609-4.png">
Answer» E.
1380.

The total observed runoff volume during a 4 hour storm with a uniform intensity of 2.8 cm/hr is 25.2 x 106 m3 from a basin of 280 km2 area. What is the average infiltration rate for the basin ?

A. 3.6 mm/hr
B. 4.8 mm/hr
C. 5.2 mm/hr
D. 5.5 mm/hr
Answer» E.
1381.

The losses in prestress in pre-tensioning system are due to :1. elastic deformation of concrete when wires are tensioned successively2. friction3. shrinkage and creep of concreteSelect the correct answer using the codes given below:

A. 1, 2 and 3
B. 2 and 3
C. 1 alone
D. 3 alone
Answer» B. 2 and 3
1382.

A machine costs Rs. 16, 000. By constant rate of declining balance method of depreciation, its salvage value after an expected life of 3 years is Rs. 2, 000. The rate of depreciation is

A. 0.25
B. 0.30
C. 0.40
D. 0.50
Answer» E.
1383.

Consider the following statements regarding the longitude of a place.It is determined by :1. wireless time signals2. transportation of chronometers3. electric telegraph.Of these statements :

A. 1, 2 and 3 are correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 2 and 3 are correct
Answer» C. 1 and 3 are correct
1384.

The outstand of the flange of built-up beams from the line of connection should not extend beyond:(where T is the thickness of flange and tw is the thickness of web)

A. 10 T
B. 85 T
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/28-1319-3.png">
D. 180
E. <i>t<sub>w</sub></i>
Answer» D. 180
1385.

Consider the following statements about concrete sleepers :1. They improve the track modulus.2. They have good scrap value.3. They render transportation easy4. They maintain the gauge quite satisfactorily.Of these statements :

A. 1 and 2 are correct
B. 2 and 3 are correct
C. 3 and 4 are correct
D. 1 and 4 are correct
Answer» E.
1386.

Consider the following statements :For the manufacture of good quality bricks it is essential to1. use a reverberatory kiln.2. blend the soil with clay or sand as deemed appropriate.3. knead the soil in a ghani.4. temper the soil in a pug mill.Of these statements;

A. 1 and 3 are correct
B. 2 and 4 are correct
C. 1, 3 and 4 are correct
D. 2, 3 and 4 are correct
Answer» C. 1, 3 and 4 are correct
1387.

For the propped cantilever beam shown in the figure given above, the plastic moment capacity is Mp. What is the value of its collapse load ?

A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/20-1264-1.png">
B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/20-1264-2.png">
C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/20-1264-3.png">
D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/20-1264-4.png">
Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/20-1264-3.png">
1388.

Consider the following statements in case of impulse turbine :1. The pressure and velocity both change as the water flows through the turbine.2. Pressure throughout remains atmospheric and the velocity alone changes.3. All the available energy is converted into kinetic energy.4. Water is admitted over the entire circumference of the runner.5. Water is admitted only through the nozzle.Which of these statements are correct ?

A. 2, 3 and 5
B. 2 and 3
C. 1, 4 and 5
D. 1 and 4
Answer» B. 2 and 3
1389.

Seasoning of timber is required to

A. soften the timber
B. harden the timber
C. straighten the timber
D. remove sap from the timber
Answer» E.
1390.

If the proportion of soil passing 75 micron sieve is 50% and the liquid limit and plastic limit are 40% and 20% respectively, then the group index of the soil is

A. 3.8
B. 6.5
C. 38
D. 65
Answer» C. 38
1391.

Which one of the following instruments can be used as a clinometer ?

A. Prism square
B. Line ranger
C. Abney level
D. Optical square
Answer» D. Optical square
1392.

Consider the following statements :For the N-girder shown in the given figure, ILD for force in the member, L0U1 is obtained by1. multiplying the ordinate of ILD for shear in the panel L0L1, by sec .2. dividing the ordinate of ILD for moment at L1 by cos x L0L13. dividing the ordinate of ILD for moment at L1 by L1 U1Of these statements :

A. only 3 is correct
B. 1 and 3 are correct
C. 1 and 2 are correct
D. 1, 2 and 3 are correct
Answer» B. 1 and 3 are correct
1393.

The optimistic, most likely and pessimistic time estimates of an activity are 5, 10 and 21 days respectively. What are the expected time and standard deviation respectively ?

A. 12, 3
B. 11, 4
C. 11, 2.67
D. 10, 16
Answer» D. 10, 16
1394.

A stone dropped from the top of a tower is found to travel (5/9) of the height of the tower during the last second of its fall. What is the total time of fall ?

A. 2 s
B. 3 s
C. 6 s
D. 4 s
Answer» C. 6 s
1395.

Field vane shear is the appropriate field test for obtaining the shear strength of which one of the following ?

A. Stiff clay
B. Weathered rock
C. Sand
D. Soft clay
Answer» E.
1396.

Shear strength of timber depends on which one of the following ?

A. Lignin with fibres
B. Medullary rays
C. Heartwood
D. Sapwood
Answer» B. Medullary rays
1397.

The number of independent conditions required to be satisfied for the adjustment of a braced quadrilateral in triangulation survey is

A. 2
B. 4
C. 6
D. 8
Answer» E.
1398.

In case of well foundation, grip length is defined as the

A. length below the top of the well cap to the cutting edge
B. length between the bottom of the well cap to the cutting edge
C. depth of the bottom of the well below the minimum scour level
D. depth of the bottom of the well below the maximum scour level
Answer» E.
1399.

The coefficient of linear expansion of granite is in the range of that of

A. glass
B. mild steel
C. high carbon steel
D. bamboo
Answer» B. mild steel
1400.

In the figure shows two blocks of equal weights designated as W1 and W2 connected together by a rod and resting on an inclined plane whose angle can be varied. The coefficients of friction between the blocks and the surface of the plane are 1 = 0.2 and 2 = 0.3. The value of angle at which the slipping will commence is given by

A. tan = 0.1
B. tan = 0.2
C. tan = 0.25
D. tan = 0.8
Answer» D. tan = 0.8