| Post Name | Assistant Executive Engineer - Apex Societies of Co operative sector in Kerala |
|---|---|
| Question Paper Code | 039/2022/OL |
| Category Code | 208/2020 |
| Date of Test | 7 July 2022 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
1 N/𝑚𝑚 is equivalent to I. 1 Gpa II. 1 MPa III. 1 TPa IV. 1 kPa
Answer
D. II only
2
A simply supported beam of span 8 m is subjected to concentrated load of 10 kN at midspan. The bending moment (in kNm) at 2 m from left support is equal to
Answer
C. 10
3
A curve in which failure stress is plotted versus the number of cycles to failure is known as
Answer
B. endurance curve
4
A simply supported beam is subjected to a uniform load of intensity w acting over part of the span as shown in the figure : The reaction at the left support is equal to 𝑤𝑏�𝑏 + 2𝑐�
Answer
A. 2𝐿 𝑤𝑏�𝑎 + 2𝑏�
5
The shear stress on principal planes will be
Answer
C. zero
6
A simply supported beam of span L, flexural rigidity EI is subjected to a suddenly applied load W at the centre of span. The maximum deflection at the centre of the beam is equal to 3
Answer
B. 𝑊𝐿 24𝐸𝐼 3
7
A simply supported beam having a span L is subjected to a uniform load of intensity w throughout the span. The influence line for reaction at the right support will be
Answer
D. Triangle increasing linearly from 0 at the left support to ordinate 1 at the right support
8
The scale ratio Lᵣ for spillway discharge per unit width qᵣ is
Answer
B. qᵣ = Lᵣ^(3/2)
9
If the Reynold's number of flow is in logarithmic range, the boundary layer thickness in turbulent flow varies as 5
Answer
A. 𝑥 6 1
10
A vertical triangular plane area submerged in water with base in the free surface, vertex downward and altitude h. The position of centre of pressure below the free surface is
Answer
D. h/2
11
For the passage of maximum velocity through a circular channel section, the most economical central angle is
Answer
C. 257°
12
The equilibrium discharge for an S-curve derived from 4 hr unit hydrograph with a basin area of 400 𝑘𝑚 2 is 3
Answer
A. 278 𝑚 / sec
13
For a flood control reservoir, the effective storage is equal to
Answer
B. useful storage + surcharge storage - valley storage
14
In a certain irrigation project, in a given year, 72% and 56% of the cultarable command area remains un-irrigated in Kharif and Rabi seasons, the intensity of irrigation for that project is
Answer
C. 72%
15
Select the permanent adjustments of Surveyor's compass from the following : i. Adjustment of levels ii. Adjustment of sight vanes iii. Adjustment of eye vanes iv. Adjustment of needle
Answer
D. i, ii and iv
16
The telescope of a theodolite is mounted on
Answer
A. Trunnion axis
17
Select the optical defects of a single lens from the following : i. Spherical aberration ii. Chromatic aberration iii. Coma iv. Astigmation
Answer
D. all of the above (i, ii, iii and iv)
18
The process of taking levels on each side of a main line at right angles to that line, in order to determine a vertical cross-section of the surface of the ground is known as
Answer
B. Cross-sectioning
19
___________ is a Space Based Augmentation System jointly developed by ISRO and AAI to provide the best possible navigational services over Indian Flight Information Region.
Answer
A. GAGAN
20
______ is the concurrence of the Government to the expenditure proposed and represents allotment of the money to meet the expenditure.
Answer
C. Expenditure sanction
21
__________ is the value at the end of the utility period without being dismantled.
Answer
B. Salvage value
22
Emulsion paints contain
Answer
D. Polyvinyl acetate
23
How many Mangalore tiles are required to cover 1 square metre of roof ?
Answer
A. 16
24
Speed of an escalator is usually
Answer
C. 25-30 m/min
25
Polymer Cement Mortar (PCM) is used primarily for
Answer
A. Repairing concrete structure
26
In the PERT chart, the activity time distribution is
Answer
B. Beta
27
The key functions of safety management system are, I. Planning for safety II. Organizing for safety III. Scheduling for safety IV. Controlling for safety
Answer
C. I, II and IV are correct
28
Determine the amount of cement per unit volume of concrete from
Answer
D. The maximum size of aggregate and the amount of mixing water
29
A 12.5 mL of treated wastewater requires 187.5 mL of odour free distilled water to reduce the odour to a level that is just perceptible. What is the Threshold Odour Number (TON) for the wastewater sample ?
Answer
A. 16
30
If L, B, H are the length, breadth (width) and depth of a rectangular sedimentation tank having total discharge Q, then the settling velocity of a particle (sediment) is given by
Answer
B. Q/BL
31
If a smoke chimney were to emit air pollutants into an unstable atmosphere we expect the plume to be
Answer
D. looping
32
Air Quality Index (AQI) category is poor (in India), if the AQI value is
Answer
B. 201-300
33
The permissible limit of total hardness (as 𝐶𝑎𝐶𝑂3 in mg/L) in drinking water as per IS 10500:2012 is
Answer
D. 600
34
The work done by the pump to lift 0.1 m³/s of water to a height of 10 m is (neglect frictional and other losses and take the unit weight of water as 10 kN/m³).
Answer
C. 10 kW
35
The value pH = 3 when compared to pH = 5 will be more acidic by
Answer
C. 100 times
36
The economic range of spacing of roof trusses is
Answer
D. 1/3 to 1/5 of span
37
The eccentric riveted connections if the rivet plane is perpendicular to the load plane the rivets are subjected to
Answer
C. axial and shear stresses
38
The slenderness ratio of a column which is supported throughout its length by masonry wall is
Answer
C. zero
39
The first crack load is determine from
Answer
B. Modulus of rupture
40
For a single unequal angle tie member the leg preferred for making connection is the
Answer
A. longer one
41
For liquid limit determination soil particles passing through which sieve size is required
Answer
B. 425 micron
42
The value of compression index for a remoulded soil sample whose liquid limit is 50% is
Answer
A. 0.28
43
If the depth of water in a pond is 8m, the total and effective stress at a depth of 5m below water surface are respectively 2
Answer
B. 49 kN/𝑚 and zero 2 2
44
The shape factor 𝑆� for a square footing as per IS method of bearing capacity calculation is
Answer
C. 0.8
45
What is the critical height of a slope in a clay of bulk density 20 kN/𝑚 2 and cohesion = 20 kN/𝑚 2 if the stability number is 0.05 ?
Answer
C. 20m
46
If P is the centrifugal force in kg, W is the weight of vehicle in kg, R is the radius of circular curve in metres, v is the speed of vehicle in m/s and g is the acceleration due to gravity in m/s², the impact factor can be expressed as:
Answer
D. v²/(gR)
47
Grade compensation is not necessary for gradients flatter than
Answer
C. 4%
48
Design period for structural design of pavements for National Highways is
Answer
C. 20 years
49
Ratio of total hourly volume to the peak rate of flow during peak hour is known as
Answer
C. Peak hour factor
50
Design hourly volume is usually taken as �ℎ
Answer
C. 30 highest hourly volume �ℎ
51
When a system of forces is acting on a body, a force that would balance one or more unbalanced forces is called
Answer
B. Equilibrant
52
A 10 kg chandelier is suspended by four equal-length chains whose upper ends are equally spaced on a circular ceiling plate of diameter 1.2 m. If the maximum force in each chain is 25√2 N, find the minimum vertical distance between the ceiling and chandelier. Take g = 10 m/s².
Answer
C. 60 cm
53
The sufficient and necessary condition for equilibrium of a system of coplanar forces acting on a rigid body is → →
Answer
B. � 𝐹� = 0, � 𝐹� = 0, � 𝑀� = 0
54
If two forces acting simultaneously at a point are represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant is represented in magnitude and direction by
Answer
D. None of these
55
Which of the following is a statically indeterminate problem ?
Answer
B. Resolution of a given force into more than two parallel components in one plane
56
Consider the following two statements : Statement I : A couple in its plane can be transposed without changing its action on a body. Statement II : Resolution of a force into a force and a couple is not possible of these statements.
Answer
C. I is only true
57
A short cylinder weighing 20√3 kg is held in equilibrium by a rope passing over a ceiling hook and around the cylinder. The angle θ at the hook is 60°. Find the tensile force in the rope. Take g = 10 m/s².
Answer
A. 200 N
58
Hydrostatic stress causes change in
Answer
B. Volume
59
Bone is _________ in nature.
Answer
C. Anisotropic
60
For an isotropic material with Poisson's ratio of 0.5, the volumetric strain is
Answer
A. 0
61
The same tensile force is exerted on two bars of equal size but of different materials. If the ratio of the elongations of the bars is 10 : 6, what will be the ratio of respective modulus of elasticity of the materials ?
Answer
D. 6 : 10
62
The highest stress level for which Hooke's law is applicable for a certain material is referred to as
Answer
D. Proportional limit
63
If an element in a body of homogeneous isotropic material is subjected to plane stress, then consider μ to be the Poisson's ratio and 𝜀� , 𝜀� and 𝜀� to be the normal strains in x, y and z directions respectively, the magnitude of unit volume change of the element is given by
Answer
B. 𝜀� + 𝜀� + 𝜀�
64
Poisson's ratio and modulus of elasticity of a material is given as 0.2 and 80 GPa respectively. What will be the value of bulk modulus and modulus of rigidity of the material ?
Answer
C. 44.44 GPa, 33.33 GPa
65
For an involute gear teeth
Answer
B. Two convex surfaces are in contact
66
The number of teeth of a spur gear is 40 and it rotates at 100 rpm. What will be its pitch line velocity if it has a module of 2.5 mm ?
Answer
C. 31.4 m/min
67
Which type of gear mostly used for the drive to the differential of an automobile ?
Answer
A. Spiral bevel gear
68
To reduce pressure on the bearings and to increase power transmission, the pressure angle of the gear must be kept ?
Answer
A. Small
69
Axial thrust is a disadvantage for
Answer
D. Helical gear
70
Method to reduce interference in gears
Answer
D. All of the above
71
A string stretched between two supports has
Answer
B. Infinite degrees of freedom
72
A vibrating system consist of a mass of 50 kg, a spring with a stiffness of 30 kN/m and a damper. The damping provided is only 30% of the critical value. Determine the damping factor.
Answer
A. 0.3
73
The natural frequency of a spring-mass system on earth is 𝜔� . The natural frequency of this system on the mars, if 𝑔���� = 𝑔����ℎ is 3
Answer
C. 𝜔�
74
Which damping system preferred to design large guns ?
Answer
C. Critical damped system
75
Machines are usually mounted on springs or dampers to
Answer
B. Reduce transmissibility
76
For a system to vibrate, it must possess
Answer
A. Inertial and restoring elements
77
The increase of temperature i. Increase the viscosity of gas ii. Increases the viscosity of liquid iii. Decreases the viscosity of liquid iv. Decreases the viscosity of gas Which of these statements are correct ?
Answer
A. i and iii only
78
A fluid, which shows no deformation up to a certain point (yield stress) and beyond that shear stress is proportional to the rate of shear strain, is known as
Answer
D. Ideal plastic fluid
79
Poise is the unit of
Answer
A. Viscosity
80
The fluid property associated with cavitation phenomenon is
Answer
B. Vapour pressure
81
There will be no rise or fall of liquid inside a capillary tube, when the angle of contact between tube and liquid is
Answer
C. 𝜋 2
82
Consider the following statements : i. Absolute pressure is measured with reference to absolute vacuum pressure. ii. Gauge pressure is measured with reference to atmospheric pressure. Which of the statements given above is/are correct ?
Answer
C. both i and ii
83
The temperature difference across a 15 cm thick furnace wall is maintained at 30°C. Heat is conducted through the wall at the rate of 40 W/𝑚 . What is the thermal conductivity of the wall ?
Answer
B. 0.2 W/mK
84
Which of the following has maximum value of thermal conductivity at 20°C ?
Answer
D. Diamond
85
The thermal diffusivity is given by Where 'k', 'ρ' and 'c' denote the materials thermal conductivity, density and specific heat capacity respectively.
Answer
A. 𝑘 𝜌𝑐
86
An electric cable, 6 mm in diameter, is covered by plastic sheathing (k = 0.18 W/m·K). The surface temperature of the cable was observed as 50°C when exposed to air at 20°C with a convective coefficient of 12 W/m²·K. What is the thickness of insulation to keep the wire as cool as possible?
Answer
B. 12 mm
87
The natural convection heat transfer is characterised by
Answer
C. Grashof number
88
A body whose absorptivity of a surface does not vary with temperature and wavelength of the incident radiation is called
Answer
D. Gray body
89
Human resource management is
Answer
C. The process of bringing people and organisation together so that the goals of each are achieved
90
The process of the permanent reduction of a company's labour force through the elimination of unproductive workers or divisions is known as
Answer
B. downsizing
91
What is meant by the phrase CSR ?
Answer
A. Corporate Social Responsibility
92
The Code of Discipline was evolved at the Indian Labour Conference in
Answer
A. 1958
93
Discipline is necessary in all organizations for following factors except
Answer
D. Wealth creation and expansion of plant
94
Which of the following is NOT a characteristic of an organization's culture ?
Answer
B. Assertiveness
95
Proper moulding sand must possess six properties. Which of the following is not a property of any moulding sand ?
Answer
B. Hardenability
96
Wide verities of materials are used for making patterns. But patterns cannot be constructed out of one of the following materials. Which one ?
Answer
C. Oil
97
Suggest the best suited for casting process for making of hollow pipes and tubes.
Answer
A. Centrifugal casting
98
In a hot chamber die casting process, which of the following parts is used for the pumping of liquid metal into the cavity ?
Answer
D. Gooseneck
99
The low permeability in moulding sand can cause which of the following defects in casting ?
Answer
B. Blow holes
100
Calculate the dimensions of a 90 mm cube after it cools down to room temperature. The solidification shrinkage for the cast metal is 5% and solid contraction is 7.5%. Assume uniform cooling in all directions.
Answer
C. 86.2 mm
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