Engineering Questions with Answers - Multiple Choice Questions

# Strength of Materials MCQs Analyse Propped Cantilever

1 - Question

In cantilever beams, the extra support is known as ____________
a) Hinch
b) Prop
c) Cripple
d) Indeterminate end

View Answer

Answer: b
Explanation: In case of cantilever beam, some support other than existing ones may be provided to reduce the amount of bending moment developed. The additional support is known as prop.

2 - Question

Prop reduces ___________ in the beam.
a) Deflection
b) Slope
c) Shear
d) Moment

View Answer

Answer: a
Explanation: The extra support provided in case of cantilever beam excluding the existing ones is known as prop. It is provided in order to avoid excessive deflection caused due to unequal loading.

3 - Question

Which of the following is indeterminate structure?
a) Singly rereinforced beam
b) Propped cantilever beam
c) Over hanging beam
d) Simply supported beam

View Answer

Answer: b
Explanation: The statically indeterminate structures are not capable of being analysed by using equation of statics. We need some more extra conditions for finding unknowns like €i and €y etc. A propped cantilever beam is an example of indeterminate structures.

4 - Question

____________ is used to produce due to temperature variation in indeterminate structures.
a) Stresses
b) Strains
c) Deflections
d) Moment

View Answer

Answer: a
Explanation: Statically indeterminate structures need some extra conditions for the further simplification. Normally stresses are produced due to variation in indeterminate beams.

5 - Question

In cantilever beams, the maximum deflection occurs at ___________
a) Fixed end
b) Free end
c) Through out
d) Point of loading

View Answer

Answer: b
Explanation: The maximum deflection in cantilever beam occurs at free end. To resist that excessive deflection, the beam has to be supported by an extra support known as prop.

6 - Question

As per IRC, maximum width of lane considered as ____________
a) 2.44 m
b) 2.35 m
c) 3.5 m
d) 3.4 m

View Answer

Answer: a
Explanation: As per IRC, the maximum width be 2.44 m. For a single lane, the width considered is 3.8 m. The pavement having two or more lanes the weight of 3.5 metre per lane is considered sufficient.

7 - Question

______ is the area of land acquired and reserved for future development.
a) Right of pier
b) Carriage way
c) Right of way
d) Camber

View Answer

Answer: c
Explanation: It is desirable to acquire more land because of the cost of adjoining land in variable increases after laying the road. The right of way is area of land acquired and reserved for future development.

8 - Question

Stability of high rise vehicles will be affected due to ____________
a) Camber
b) Gradient
c) Super elevation
d) Formation Width

View Answer

Answer: a
Explanation: The rise given to the centre portion of the proposed carriageway with reference to its peripheral edge is called camber. Road users use more in the central portion of road and get worn out. The stability of high rise vehicles will be affected due to heavy camber.

9 - Question

The longitudinal rise or fall off road surface along its length is _________
a) Camber
b) Super elevation
c) Gradient
d) Carriage way

View Answer

Answer: c
Explanation: The gradient is defined as the longitudinal rise or fall off road surface love its length is expressed as ratio 1 vertical: n horizontal or as a percentage.

10 - Question

Which of the following gradient is usually used in the construction of roads?
a) Exceptional gradient
b) Limiting gradient
c) Hydraulic gradient
d) Ruling gradient

View Answer

Answer: d
Explanation: Ruling gradient may be used as isolated over in flat country roads carrying a large volume of slow moving traffic. Gradient up to the ruling gradient for different terrains. It is to be adopted in normal course of design.

11 - Question

According to IRC, the height of the object is taken to the height of ___________ mm.
a) 200 mm
b) 100 mm
c) 450 mm
d) 600 mm

View Answer

Answer: b
Explanation: Sight distance is an important requirement for the safety of travel on highways the height of the object is taken to be at a depth of 100 mm above road.

12 - Question

What is the minimum shoulder width provided for village roads?
a) 1.25 m
b) 1.4 m
c) 0.5 m
d) 1 m

View Answer

Answer: c
Explanation: The minimum shoulder width provided for village roads is 0.5m.
Class of road Minimum shoulder width(Hilly terrain)
NH & SH ways 1.25 m
MD roads 0.5
Village roads 0.5

13 - Question

In case of vertical curves, the ____________ are taken above the road.
a) Gradient
b) Super elevation
c) Earth quantities
d) Summit

View Answer

Answer: c
Explanation: The line of sight of a driver above the road is taken as 1.2m. The height of the object is taken to be height of 100 mm. Sight distance is an important resource requirement for the safety of travel. The designing layout plays a very vital role.

14 - Question

The time required for overtaking ___________ seconds.
a) 9 to 14
b) 8 to 10
c) 11 to 15
d) 14 to 19

View Answer

Answer: a
Explanation: In the case of vertical curves, the sight distance is an important requirement for the safety of travel. It it is necessary that sight distance of adequate length should be available in different situations to permit driver enough time and distance to control their vehicles so that there are no unwarranted accidents.

15 - Question

_____ provide gradual introduction of super elevation.
a) Transition curves
b) Summit curves
c) Joint curves
d) Adjoining curves

View Answer

Answer: a
Explanation: The transition curves are necessary for a vehicle to have smooth entry of straight section into circular curve. They provide aesthetic experience of the road. They provide a graduate introduction of super elevation.

16 - Question

### Strength of Materials MCQs Deflection of Propped Cantilever

The upward deflection caused by the prop is _____________
a) Pl3/2EI
b) Pl2/3EI
c) Pl3/3EI
d) Pl4/3EI

View Answer

Answer: c
Explanation: The deflection developed by proper reaction at free end “y” = Pl3/3EI. A cantilever beam which is supported by an extra support when length of beam increases beyond limit is termed as propped cantilever in order to reduce the excessive deflection.

17 - Question

Stiffness of the propped cantilever is _________
a) 4EI/l
b) 6EI/l
c) 8EI/I
d) 5EI/l

View Answer

Answer: a
Explanation: When is a structural member of uniform section is subjected to moment at one end then the moment develops which is required so as to rotate the end to produce unit slope. This is known as of the member. For propped cantilever, the stiffness is 4EI /l.

18 - Question

The major losses of energy due to friction are calculated by using _________
a) Ingli’s formulae
b) Emperical notations
c) Chezy’s Equation
d) Lacey’s Theory

View Answer

Answer: c
Explanation: The major loss of energy is caused by friction and it is calculated by using either Darcy – Weisbach equation or chezy’s formula. The chezy’s formula V = C(mi)1/2. Formula for Darcy’s Weisbach equation is = 4fLV2 / 2gd.

19 - Question

The ratio of A/P is ___________
a) Hydraulic radius
b) Arbitrary datum
c) T E L
d) H G L

View Answer

Answer: a
Explanation: The ratio to the cross sectional area and wetted perimeter is called hydraulic radius. It is also known as hydraulic mean depth. It is denoted by m.

20 - Question

Determine the velocity of flow in a pipe if the discharge capacity is 270 litres per second and cross sectional area is 5 cm2.
a) 4.5 m/s
b) 5.4 m/s
c) 3.4 m/s
d) 2.5 m/s

View Answer

Answer: b
Explanation: Discharge (Q) = 270 lit/sec = 270 × 10-3 = 0.27 m3/ s.
Velocity of flow in narrow pipe = Q / A
= 0.27/ 0.05 = 5.4 m/s.

21 - Question

Calculate the reaction at prop of cantilever, if the span of beam is 5m and load is 20 kN.
a) 4.25 kN
b) 5 kN
c) 6.25 kN
d) 8 kN

View Answer

Answer: c<br/>
Explanation: For analysing the prop reaction for a cantilever beam at free end = P = 5W/16
P = 5 × 20 / 16

P = 6.25 kN.

22 - Question

The highest point on syphon is known as ____
a) Summit
b) Crown
c) Limb
d) Tread

View Answer

Answer: a
Explanation: A siphon is a long bent pipe used to transfer water from one reservoir to the other reservoir which is located at different elevations. The highest point of the siphon is known as Summit.

23 - Question

The position between the summit and the lower reservoir is known as ___________
a) Inlet leg
b) Outlet leg
c) Pressure head
d) Datum

View Answer

Answer: b
Explanation: The portion of the syphon which lies above the HGL has negative pressures and the portion between the summit and the lower reservoir is known as out let leg. At the summit the pressure is minimum.

24 - Question

Full form of TEL is _________
a) Total Emission Line
b) Thermal Electro Light
c) Total Energy Line
d) Total Electro Light

View Answer

Answer: c
Explanation: TEL (Total Energy Line) is the line which is obtained by joining tops of all vertical ordinates showing the sum of pressure head and kinetic head from the centre of the pipe.

25 - Question

The sheet of water flowing through a notch is called Nappe.
a) True
b) False

View Answer

Answer: a
Explanation: The sheet of water flowing through a notch or weir is called as Nappe or Vein. The bottom of the notch or the top of weir over which the water flows is known as the sill (or) crest and its height about the bottom of the tank or channel is known as sill height or crest height.

26 - Question

The width of broad gauge is ___________
a) 1.445m
b) 1.676m
c) 1 m
d) 0.61 m

View Answer

Answer: b
Explanation: The width of broad gauge is 1.676m.
Types of Gauge Gauge Width
Broad gauge 1.676 m
Narrow gauge 0.762 m
Light gauge 0.61 m

27 - Question

Which of the following gauge is the Indian Standard Gauge?
a) Broad gauge
b) Narrow gauge
c) Light gauge
d) Metre gauge

View Answer

Answer: a
Explanation: The Broad gauge is the Indian Standard gauge. It is widely accepted because of its complexity. The world standard gauge is 1.483 m. Broad gauge enables the rails to act as girders and transmit the wheel load to sleepers.

28 - Question

_____ is the weakest part in railway track.
a) Rail joint
b) Sleepers
c) Ballast
d) Spikes

View Answer

Answer: a
Explanation: Rail joint is a joint made between two rails jointed together with two fish plates and for fish bolts, to form an expansion gap of 1.5 to 3 mm. Rain joint is the weakest part in railway track.

29 - Question

About 90% railway tracks laid with ___________ rails in the world.
a) DH rails
b) BH rails
c) FF rails
d) GH rails

View Answer

Answer: c
Explanation: In flat footed rails, foot is made thinner and wider than head. These rails can be directly fixed to sleepers using slip spikes. This rail invented by Charles Vignoles and hence it is also known as Vignoles rails.

30 - Question

Brass is an example of ____________
a) Creep
b) Fatigue
c) Toughness
d) Hardness

View Answer

Answer: c
Explanation: Toughness is a property of a material, which enables it to absorb energy without fracture. It exists due to impact loads. Hence this property is very desirable in every component subject to impact stock loadings.
Brass and Mild steel are examples of toughness.

31 - Question

### Strength of Materials MCQs Analyse Fixed Beam

A beam which is inbuilt in at its support is called _________
a) Cantilever beam
b) Simply supported beam
c) Fixed beam
d) Continuous beam

View Answer

Answer: c
Explanation: A beam which is built in at its support is known as a fixed beam. In a fixed beam, fixed end moments are developed at the ends. The slope at the end support is zero or (unaltered).

32 - Question

Fixed beam is also known as _______
a) Encaster beam
b) Constressed beam
c) In built beam
d) Constricted beam

View Answer

Answer: a
Explanation: Fixed beam is also called Encaster beam or Constraint beam or Built in beam. In a fixed beam the fixed end moments develop at the end supports. In these beams, the supports should be kept at the same level.

33 - Question

In fixed beams, the slope at the supports be ___________
a) Minimum
b) Zero
c) Maximum
d) Throughout

View Answer

Answer: b
Explanation: The fixed beam is stronger, stiffer and more stable. The slope at the supports is zero.
Maximum bending moment at the centre is reduced because of fixing moments developed at supports.

34 - Question

_______ changes induce large stresses in a fixed beam.
a) Lateral
b) Deflection
c) Temperature
d) Slope

View Answer

Answer: c
Explanation: In fixed beam, sinking of any one support sets large stresses. The temperature changes induce the largest stress. The moving loads make the degree of fixity at support uncertain.

35 - Question

A beam 6 metres long is fixed at it ends. It carries a udl of 5 kN/m. Find the maximum bending moment in the beam.
a) 15 kNm
b) 20 kNm
c) 35 kNm
d) 40 kNm

View Answer

Answer: a
Explanation: A beam carrying udl along its entire span, the maximum bending moment developed = wl2 / 12.
= 5×62 / 12.
15 kNm.

36 - Question

Calculate the maximum deflection of a fixed beam carrying udl of 5 kN/m. The span of beam is 6 m. Take E = 200kN/m2 and I = 5×107 mm4.
a) 1.865 m
b) 2.235 m
c) 1.6875 m
d) 2.5 m

View Answer

Answer: c
Explanation: The maximum deflection in fixed beam is wl4/384EI
= 5×64 × 109/ 384×200×5×107
= 1.6875 mm.

37 - Question

Calculate the load intensity of fixed beam if the maximum deflection shall not exceed 1/ 400 of the span. Take EI as 1010 kN mm2.
a) 40 kN
b) 35 kN
c) 45 kN
d) 60 kN

View Answer

Answer: c
Explanation: When the maximum deflection equals to 1 / 400 of the span.
Wl4/ 384 EI = 1 /400.
W= 384 EI / 400 l3
W = 45 kN.

38 - Question

____ is known as a serpentine curve.
a) Circular curve
b) Transition curve
c) Reverse curve
d) Leminiscate curve

View Answer

Answer: c
Explanation: Reverse curves are provided in difficult terrain. In these curves, the simple curves have a common tangent. They consist of two simple curves of same or different radii. These curves are also known as serpentine curves.

39 - Question

The maximum super elevation to be provided is ___
a) 2 in 15
b) 1 in 15
c) 1 in 10
d) 2 in 10

View Answer

Answer: b
Explanation: According to IRC, the maximum super elevation of 1 in 15 is to be provided. Minimum super elevation is required for proper drainage. If the super elevation calculated is less than the camber no superelevation is to be provided.

40 - Question

______ curves are used to solve the problems of land acquisition.
a) Vertical curves
b) Horizontal curves
c) Circular curves
d) Transition curves

View Answer

Answer: b
Explanation: A horizontal curve is the curve in plane to provide change in direction to the centre line of the alignment. It is used to preserve the certain existing amenities and to solve the problems of land acquisition.

41 - Question

The limiting gradient for mountainous terrain is ________
a) 6.00 %
b) 7.00 %
c) 8.00 %
d) 5.00 %

View Answer

Answer: a
Explanation: The limiting gradient for mountainous terrain is 6.00%.
Type of terrain Ruling Gradient Limiting Gradient Exceptional Gradient
Plain 3.30% 5.00% 6.70%
Mountainous 5.00% 6.00% 7.00%

42 - Question

Which of the following do not have units?
a) Specific weight
b) Specific gravity
c) Specific volume
d) Mass density

View Answer

Answer: b
Explanation: Specific gravity is defined as the ratio of the specific weight of solids to the specific weight of an equal volume of water at the temperature. It is denoted by S. As it is a ratio, it doesn’t possess units.

43 - Question

In engineering properties of soils, the “e” denotes?
a) Compressibility
b) Water content
c) Porosity
d) Voids ratio

View Answer

Answer: d
Explanation: Void ratio is defined as the ratio of the total volume of voids to volume of soil solids. It is expressed as a decimal.

44 - Question

_____ is a glacier deposit of sand, gravel or clay.
a) Till
b) Tull
c) Loess
d) Mart

View Answer

Answer: a
Explanation: The deposits made by glaciers are called drifts. The deposits made by the melting of glaciers are called till. Till is a stratified soil.

45 - Question

The bearing capacity of laminated rocks used in foundation is ___________
a) 1450 kN/m2
b) 1620 kN/m2
c) 1785 kN/m2
d) 2125 kN/m2

View Answer

Answer: b
Explanation: The bearing capacity of laminated rocks used in foundation is 1620 kN/m2.
Type Of Rock Bearing capacity in kN/m2
Granite 3240
Laminated 1620
Residual 880
Soft 440