| Post Name | Inspector of Factories and Boilers Grade II/ Assistant Engineer |
|---|---|
| Department | Factories and Boilers, State Farming Corporation Ltd.,Technical Education |
| Question Paper Code | 093/2024 |
| Category Code | 043/2023, 260/2023, 632/2023 |
| Date of Test | 26 July 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The property of a material by which it can be beaten or rolled into thin plates is called :
Answer
C. Malleability
2
The angle between major principal plane and minor principal plane for a strained body is :
Answer
C. 90Β°
3
A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a
simple shear stress of 200 MPa. The maximum normal stress on the plane will be :
Answer
Question Cancelled
4
Which of the following is not a basic type of strain?
Answer
Question Cancelled
5
The strength of beam depends merely on :
Answer
C. Moment of resistance
6
What is the effective length of a column at both ends fixed?
Answer
B. L/2
7
How does Youngβs modulus vary with the increase in temperature?
Answer
C. Decreases
8
Factor of safety is :
Answer
D. Ultimate stress / Permissible stress
9
Maximum shear stress of a solid shaft is given by :
Answer
B. 16T/ Ο d 3
10
Neutral axis of a beam always coincides with :
Answer
D. Axis passing through centroid
11
The bending moment diagram for a cantilever with uniformly distributed load over the whole
span will be :
Answer
A. Parabola
12
When mild steel is subjected to a tensile load, its fracture will conform to?
Answer
B. Cup and cone shape
13
The triple point of a pure substance is represented by a point in :
Answer
B. P-T graph
14
In an IC engine, the work input during the compression stroke is 200 kJ/kg. What is the
change in internal energy of the working fluid if the heat rejected to the cooling water in the
process is 100 kJ/kg?
Answer
A. 100 kJ/kg Gain
15
The expansion of a gas against vacuum is called :
Answer
B. Free expansion
16
Statement I : Heat cannot flow of itself from a body at lower temperature to a body at
higher temperature, some work must be expended to achieve this.
Statement II : Electrical energy is consumed to work the domestic refrigerator.
Select the correct answer from the following :
Answer
D. Both the Statements are correct, and the Statement I is the reason for
Statement II
093/2024 4 A
17
Match the following for a process in which pvβΏ = constant: (a) Isentropic process; (b) Isothermal process; (c) Isobaric process; (d) Isochoric process. Values: (i) n = 1; (ii) n = β1; (iii) n = 1.4; (iv) n = 0; (v) n = β; (vi) 0 < n < 1.4.
Answer
A. (a)β(iii), (b)β(i), (c)β(iv), (d)β(v)
18
Select the wrong statement from the following :
Answer
Question Cancelled
19
(i) For an isolated system, dS β€ 0. (ii) For an isolated system in a reversible process, dS = 0. (iii) For an isolated system in an irreversible process, dS β₯ 0. Select the correct option.
Answer
Question Cancelled
20
Match the following :
Answer
C. dF (iii) TdS + Vdp
21
Select the wrong statement from the following :
Answer
C. Heat rejection process takes place at constant pressure in a Diesel cycle
22
Select the correct statement from the following :
Answer
D. None of these
23
A wall which is impermeable to the flow of heat is :
Answer
B. An adiabatic wall
24
In a cyclic process, heat transfers are +75 kJ, β25 kJ, +20 kJ and β15 kJ. What is the net
heat loss during the cycle?
Answer
D. None of these
25
Which of the following is not an advantage of reheating Rankine cycle?
Answer
A. Less Maintenance is required
26
The ratio of heat drop over moving blade to the total heat drop in the stage of a reaction
turbine is :
Answer
B. Degree of reaction
27
The frictional power of a single cylinder SI engine can be determined by :
Answer
C. Motoring Test
28
The Free Air Delivered (F.A.D.) is less than the displacement of the compressor because :
Answer
D. All of these
093/2024 6 A
29
Adding insulation to a hot cylindrical pipe :
Answer
C. Increases the rate of heat transfer upto a particular thickness and then decreases
30
The temperatures of the inner and outer surfaces of a 30 cm thick plane wall are 45Β°C and
25Β°C respectively. Thermal conductivity of the material is 80W/m K. The temperature at an
interior point of the wall 24 cm distant from the outer wall is :
Answer
B. 41Β°C
31
Two circular discs of diameter 20 cm each are placed 2 m apart. Their emissivities are
0.3 and 0.5 . The equivalent emissivity of the system is :
Answer
A. 0.15
32
When the compressor work input of gas turbine is reduced
Answer
D. Work ratio is increased
33
In a counter flow heat exchanger, 10000 kg/h of an oil having a specific heat of 2090 J/kgK is
cooled from 82Β°C to 50Β°C by 8000 kg/h of water entering at 25Β°C. What is the exit
temperature of the water(assume Cp of water as 4180 J/kgK?
Answer
B. 45Β°C
34
Select the wrong statement from the following :
Answer
D. In a Lithium bromide refrigeration system, water is used as the absorbent
35
A refrigeration system operates on the reversed Carnot cycle. The higher temperature of the
refrigerant is 27Β°C and lower temperature is β3Β°C. The capacity is 2TR. The power required
to run the refrigeration system in kW is :
Answer
B. 0.778
36
A room of 100 m3 volume is occupied by an air water mixture at 38Β°C. The atmospheric
pressure is 1 bar and relative humidity is 70%. The saturation pressure of vapour
corresponding to 38Β°C is 0.066 bar. The partial pressure of water vapour is :
Answer
A. 0.0462 bar
37
Select the correct statement from the following :
Answer
B. Cornish boiler is a single tube boiler
38
Which of the following is not a commonly used boiler mounting?
Answer
C. Feed pump
39
The condition of stability of a floating body in terms of I (moment of inertia), V_s (submerged volume), and GB (distance between the centre of gravity and the centre of buoyancy) is
Answer
B. I/V_s > GB
40
As temperature of the liquid increases, the NPSHA (Net Positive Suction Head Available) at
the inlet of centrifugal pump :
Answer
A. decreases
41
If there is a 1% error in measuring head over the apex of a rectangular notch (H) , the error
which occurs in the discharge is :
Answer
D. 1.5%
42
Darcyβs fraction factor is :
Answer
Question Cancelled
43
Blood is an example of :
Answer
C. Pseudo plastic fluid
44
A turbine develops 7000 kw under a head of 20 m at 140 rpm, the turbine is
Answer
A. Kaplan turbine
45
The head against which a centrifugal pump has to work is known as :
Answer
C. Manometric head
46
A jet of water of diameter 1 cm moving with a velocity of 25 m/s strikes a hinged square plate
(uniform thickness) of weight 98 N at its centre. The angle through which the plate will
swing is :
Answer
B. 30Β°
47
A circular tank of diameter 2 m contains water up to a height of 4 m. It has an orifice of 20 cm at the bottom. The approximate time to empty the tank completely is (c_d = 0.6)
Answer
C. 150 s
48
The diameter of the jet of a pelton wheel is 90 mm and the diameter of the runner is 1.08 m.
The number of buckets is given by :
Answer
D. 21
49
A Pelton wheel turbine operates under a head of 250 m at a speed of 1400 rpm. To operate
very close to the maximum efficiency, the mean diameter of the Pelton wheel is nearly :
Answer
C. 48
50
The degree of reaction of a Kaplan turbine is :
Answer
C. between 0.5 and 1
51
The close pack sequence of ABAB is found in ββββββ crystalline arrangement.
Answer
C. HCP
52
Which of the following is NOT denoted by <211> as per the conventions of miller indices?
Answer
D. None of the above
53
The miller indices of a plane is given by (210). The intercepts of the plane with the
3 coordinate axes are :
Answer
D. None of the above
54
Hume Rothery rule for extensive substitutional solid solubility states that the
electronegativity values of solvent and solute be :
Answer
C. close
55
Like bonds are preferred when enthalpy of mixing is :
Answer
A. positive
56
Statement 1 : The Burgerβs vector of a screw dislocation is always perpendicular to the
dislocation line.
Statement 2 : There is no uniquely defined slip plane for a screw dislocation.
Answer
D. Statement 1 is false, Statement 2 is true
57
When 3 phases coexist in a binary phase diagram the degree/s of freedom become/s :
Answer
A. 0
58
Statement 1 : Eutectic reaction occurs when the melting points of the two components
involved are far apart.
Statement 2 : Peritectoid reaction involves only solid phases.
Answer
D. Statement 1 is false, Statement 2 is true
59
Which of the following statements is true regarding Fickβs Laws of diffusion?
Answer
C. Fickβs first law describes the diffusion flux as proportional to the concentration
gradient
60
In a TTT diagram, shifting the nose to the left by alloying :
Answer
C. decreases hardenability
61
Statement 1 : Brass is alloy formed of copper and tin
Statement 2 : Brass is alloy of copper and zinc
Answer
D. Statement 1 is false, Statement 2 is true
093/2024 10 A
62
During which heat treatment process is steel heated to a temperature above its critical range
and then βslow cooledβ in air?
Answer
B. Normalizing
63
A ball and socket joint forms :
Answer
D. spherical pair
64
Effective tension on tight side is 1000 N and slack side is 500 N, linear velocity is 20 m/sec.
The power transmitted for belt drive is :
Answer
B. 10 kW
65
Dynamometer is a device, which is used to measure :
Answer
D. power developed by the machine
66
The type of gears used to connect two non-parallel non-intersecting shafts are :
Answer
Question Cancelled
67
In a gear trains where the axes of gears have motion are called :
Answer
B. epicyclic gear trains
68
Governor power is defined as :
Answer
A. product of governor effort and sleeve lift
69
In an automobile, if the vehicle makes a left turn, the gyroscopic torque :
Answer
A. increases the forces on the outer wheel
70
Longitudinal vibrations are said to occur when the particles of a body move :
Answer
B. parallel to its axis
71
The whirling speed of a rotating shaft carrying a mass m at the centre is :
Answer
C. is equal to natural frequency of transverse vibration of the system
72
Which of the following is not a theory of elastic failure?
Answer
C. maximum energy theory
73
Which of the following is not a desirable property for shaft material?
Answer
D. high notch sensitivity
74
The distance on the pitch circle from a point on a tooth to the corresponding point on the
adjacent tooth is :
Answer
C. circular pitch
75
The rating life for ball bearing is :
Answer
D. inversely proportional to the cube of equivalent load
76
Single plate clutches are used in :
Answer
A. buses
77
In casting, what is the primary function of a riser?
Answer
B. To provide a reservoir for molten metal
78
Which welding process uses a non-consumable tungsten electrode :
Answer
B. TIG welding
79
Which of the following is NOT a yield criterion?
Answer
D. Bernoulli
093/2024 12 A
80
Tool wear is influenced by which factor?
Answer
D. All of the above
81
In CNC programming, which code represents a rapid traverse motion?
Answer
A. G00
82
Which type of machine tool hold multiple tools?
Answer
B. Turret lathe
83
Which of the following processes uses electrical discharge to machine hard metals?
Answer
A. EDM
84
Which non-traditional machining process uses a high-velocity jet of water mixed with
abrasive particles?
Answer
D. AWJM
85
What does a coordinate measuring machine
Answer
B. Dimensional accuracy
86
Which method uses light interference to measure very small distances or surface
irregularities?
Answer
A. Interferometry
87
Which software is typically used for creating detailed engineering drawings and models?
Answer
B. CAD
88
Which tool material is most suitable for high-speed machining of tough alloys?
Answer
C. Tungsten carbide
89
A Public limited company is a type of :
Answer
A. Joint stock company
90
The number of subordinates a superior can manage effectively is :
Answer
B. Span of control
91
Functional layout is also called :
Answer
D. Process layout
92
The crane which is provided with wheels and can be moved from one place to another as per
requirement is called :
Answer
C. Gantry crane
93
The diagram to study the extent of traffic over different routes of the plant is :
Answer
A. String diagram
94
The function that executes production planning is :
Answer
C. Dispatching
95
In inventory model cost of capital is a component of :
Answer
B. Carrying cost
96
Whenever subgroup size is variable the attribute control chart used is :
Answer
D. p chart
97
If two components each with reliability 0.9 are connected in parallel, the system reliability
is :
Answer
B. 0.99
98
The process of attracting top talented people to an organization is :
Answer
A. Recruitment
99
In simplex method for solving linear programming problem, the variable which is adding to a
< = constraint is called :
Answer
D. Slack variable
100
The project management technique evolved through research and development projects is :
Answer
C. Program Evaluation and Review Technique
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