| Post Name | OVERSEER GRADE II (MECHANICAL) (Universities in Kerala) |
|---|---|
| Question Paper Code | 022/2025 |
| Category Code | 036/2024 |
| Date of Test | 19 February 2025 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
What is represented by scale 3:5?
Answer
B. Reduced scale
2
Picture plane is same as that of projection plane in :
Answer
Question Cancelled
3
Chain line is used for representing :
Answer
D. All of the above
4
Interior angle of a regular heptagon is :
Answer
C. 128.5°
5
A point moves in such a way that its distance from a fixed straight line is always
1.5 times the distance from fixed point, 50 mm away from the fixed line. Name the above
curve.
Answer
B. Ellipse
6
Method adopted for drawing ellipse is :
Answer
D. All of the above
7
What is the standard size of an A2 sheet?
Answer
D. 420 mm × 594 mm
8
The length in isometric drawing of line is 20 cm. What is the true length of it?
Answer
Question Cancelled
9
In the absence of protractor, the following scale is used to construct angle :
Answer
B. Scale of chords
10
The angle between plane of projection and Line of protection in cabinet oblique
projection is :
Answer
Question Cancelled
11
Isometric view will be larger than isometric projection by :
Answer
Question Cancelled
12
Method for drawing the isometric projection is :
Answer
Question Cancelled
13
Three-point perspective view are used to draw :
Answer
C. Tall building
14
Which one of the following metals will readily fracture if hit with hammer?
Answer
D. Cast iron
15
Stiffness of a metal is characterized by its :
Answer
A. Modulus of elasticity
16
Total area under stress strain curve of mild steel specimen tested up to failure under
tension is measure of :
Answer
D. Toughness
17
Heat treatment process for hardening of high carbon steel is :
Answer
Question Cancelled
18
A bolt’s identification M 60 × 2 indicates :
Answer
D. metric threads of 60 mm outside diameter and 2 mm pitch
19
When a washer is positioned underneath a nut to tighten it, the bolt will be subjected to :
Answer
C. tensile stress
20
Two plates each of thickness t are to be riveted together. If the length of the shank
portion necessary to form the closing head is a, then the length of the rivet shank is
given by :
Answer
A. 2t + a
21
According to the Unwin formula, the diameter of the rivet hole and plate thickness are
related by :
Answer
D. d = 6√t
22
Weld spatter defects in welding are typically caused by :
Answer
C. too high current during welding
23
How are the base metals to be welded connected in spot welding?
Answer
B. Mechanical pressure
24
Which of the following materials is not used in alloy steels?
Answer
D. Sodium
25
Pinch effect in welding is caused by :
Answer
D. Electromagnetic forces
26
The distance from the centre of the face to the root of the weld is known :
Answer
C. Throat
27
Which of the following defects occur due to melting or burning away of parent metal?
Answer
A. Undercut
28
Which of the following defects occur when the deposited metal is not focused on the root
of the weld?
Answer
D. Inadequate penetration
29
In which of the following operation jigs are preferred over fixtures?
Answer
D. Drilling
30
Upon annealing, eutectoid steel changed to which of the following?
Answer
A. Perlite
31
A taper provided on the pattern for its easy removal from the mould is known as :
Answer
B. Draft allowance
32
A gimlet is a hand tool used for which of the following manufacturing process?
Answer
C. Drilling
33
What is the combustion in a spark ignition engine?
Answer
C. homogeneous
34
In a micrometre, the anvil is made of :
Answer
D. Alloy steel
35
What function is M06 code in part programming?
Answer
B. Tool change
36
Iso-octane is characterised by :
Answer
C. It has an octane number of 100
37
Mass in kg of a rectangular steel plate of dimensions 200 mm × 300 mm × 10 mm is
______________ (given the density of steel = 7.82 gm/cm3) :
Answer
B. 4.692 kg
38
Shafts A and B are made of same material. If the radius of shaft A is one-third that of
shaft B, the ratio of torque transmitted by shaft B to that of shaft A is :
Answer
C. 27 : 1
39
Which one of the following keys is semi-circular in shape?
Answer
D. Woodruff key
40
Which among the following statement/statements is/are true?
(i) Flexible couplings are used where the axes of the shafts are laterally misaligned.
(ii) Rigid coupling is used where there is a perfect alignment of shafts to be joined.
(iii) Oldham coupling is an example for rigid couplings.
Answer
C. (i) and (ii) only
41
Which among the following statement/statements is/ are true about journal bearings?
(i) Journal bearing is an anti-friction bearing.
(ii) In journal bearing, the loading is parallel to the bearing axis.
(iii) In journal bearing, the bearing pressure acts normal to the shaft axis.
(iv) Journal bearings rotate along with the shaft.
Answer
C. (iii) only
42
For a gear, circular pitch is defined as :
Answer
A. π × module
43
Find the tension in the frictionless pulley system shown: masses 5 kg and 10 kg connected over a pulley; take g = 10 m/s².
Answer
B. 66.67 N
44
Which among the following statement/statements is/are true?
(i) An idler pulley is used to maintain constant tension on the belt.
(ii) Belt drive is a positive drive.
(iii) ‘V’ belt drives are used when the distance between the driver and driven pulleys is
more.
(iv) Crowning of pulley is done to avoid the belt from slipping.
Answer
A. (i) and (iv) only
45
Choose the correct statement/statements from below :
(i) In cross belt drivers, the shaft are arranged parallel and rotate in the opposite
direction.
(ii) The power transmitted by the belt drive is dependent on the belt velocity.
(iii) The tension in the tight side of the belt is greater than that of the slack side.
(iv) In case of a 6 × 7 wire rope, the numbers 6 and 7 stand for the number of strands
and wires used in the wire rope respectively.
Answer
D. (i), (ii) , (iii) and (iv)
46
When a chain of pitch ‘p’ is wrapped around a sprocket having “T” number of teeth and
pitch circle diameter ‘D’, then choose the correct relation from below :
Answer
C. p/D = sin(180°/T)
47
1 Joule is :
Answer
D. 107 dyne cm
022/2025 8 A
48
The heat absorbed by a substance without changing its Physical state is :
Answer
A. Sensible heat
49
The kinetic energy gained by a 10 g body falling 10 m is (take g = 10 m/s²):
Answer
A. 1J
50
Very high temperatures are measured using :
Answer
B. Pyrometer
51
The power generated by the engine is called :
Answer
B. Indicated power
52
The process in which the sheet metal is cut through part of its length and the cut portion
is then bend to form tabs and louvers is called :
Answer
C. Lancing
53
The associated state of stress in blanking is :
Answer
C. Shear
54
To punch a square hole of side length ‘a’ from a sheet material of thickness ‘t’ and
ultimate shear strength of τ u , the force required is :
Answer
A. 4atτ u
55
For a blanking operation :
Answer
A. die size = blank size
56
The heights and base perimeters of two right circular cones are in the ratios 1:10 and
10:5 respectively. The ratio of their volumes is :
Answer
C. 2:5
57
If the length of a rectangle is increased by 10% and breadth decreased by 10%, then the
new area of the rectangle :
Answer
B. decreases by 1%
58
The time taken to fill water in a cylindrical tank of radius 7 m and height 10 m at the
rate of 2 m3/s is :
Answer
A. 770 s
59
If the ratio of length of the breadth of a rectangle having perimeter of 500 m is 3 : 2, the
area of the rectangle will be :
Answer
C. 15000 m2
60
In order to block the pipe at one end, which of the following is used :
Answer
B. Plug
61
Once through boilers are :
Answer
Question Cancelled
62
Pipe fitting used to connect a branch right angle to the main pipe :
Answer
C. Tee
63
Which of the following type of actuators is most commonly used in control valves?
Answer
D. Pneumatic
64
If the ratio of inner diameter to wall thickness of a cylinder is more than 15, it is called :
Answer
B. Thin cylinder
65
Choose a boiler accessory from the following :
Answer
A. Air preheater
66
The pressure switch is used to :
Answer
D. All of the above
67
The compressed air flows to the actuator through
Answer
D. Pipes and valves
68
The boiler accessories used to recover some of the heat carried away in the flue gases up
the chimney and to heat the feed water :
Answer
A. Economizer
69
Selection of a compressor is based on the following factor :
Answer
B. Volumetric efficiency
70
The instrument not used for measuring angles :
Answer
C. Optical flat
71
Distance of the centre of gravity of a right circular cone from its base :
Answer
A. h/4
72
The instrument used for measuring the hole of diameter 1.5 mm :
Answer
D. Pin gauge
73
What is the direction of frictional force against a moving object?
Answer
B. Opposite to the object
74
Find out the length of an arc of a sector, whose perimeter is 64.8 cm and radius is
12.4 cm :
Answer
B. 40 cm
75
What is the ratio of change in length to original length?
Answer
C. Linear strain
76
Find the value of x if (x + 2) / 3 = 19 ?
Answer
A. 55
77
The total area of a plane figure is assumed to be concentrated at a point called
Answer
C. Centroid
78
______________ tool is used for laying out large circles.
Answer
D. Trammel
79
What is the primary objective of designing a machine foundation?
Answer
B. To absorb machine vibrations
80
Which material is commonly used for machine foundations due to its high resistance to
vibrations?
Answer
C. Concrete
81
The goal of optimizing process paths in a production system is to :
Answer
D. Minimize production cost and time
82
Which of the following processes involves heating a metal to a high temperature and
then cooling it rapidly in water or oil?
Answer
A. Quenching
83
Which heat treatment process involves heating the material to a specific temperature
and then cooling it slowly in air?
Answer
B. Annealing
84
Which component of the computer is responsible for temporary data storage while the
computer is running?
Answer
A. RAM
85
What is the purpose of the OFFSET command in AutoCAD?
Answer
B. To create parallel lines
86
Which AutoCAD command is used to trim unwanted parts of an object?
Answer
C. TRIM
87
Which of these commands is used to join two objects in AutoCAD?
Answer
B. JOIN
88
In 3D modeling, which axis is added to define depth?
Answer
C. Z-axis
89
What does the EXTRUDE command do in AutoCAD?
Answer
A. Creates a 3D solid from a 2D shape
90
Which command is used to create a hollow space within a solid object in AutoCAD?
Answer
D. SHELL
91
In AutoCAD, what does the PURGE command do?
Answer
D. Deletes unused layers, blocks and styles
92
What is the purpose of the POLYLINE command in AutoCAD?
Answer
B. To create a connected sequence of line and arc segments
93
What is the density of a material with a mass of 500 kg and a volume of 2 m3?
Answer
A. 250 kg/m3
94
In assembly drawings, which symbol represents a threaded hole?
Answer
Question Cancelled
95
A shopkeeper buys an item for Rs. 400 and sells it for Rs. 500. What is the profit
percentage?
Answer
B. 25%
96
Which geometric constraint in Solid Works ensures that two lines lie along the same
infinite line?
Answer
C. Collinear
97
In Autodesk Inventor, which feature ensures that a sketch entity is tangent to a curve or
circle?
Answer
B. Tangent
98
In AutoCAD Inventor, which operation is used to create a solid body from a closed sketch
by adding material perpendicular to the sketch?
Answer
A. Extrude
99
Which Solid Works feature is used to create a feature by adding material along a guide
curve?
Answer
B. Loft
100
What is the purpose of the ‘Construction Geometry’ feature in Solid Works sketches?
Answer
A. To create reference geometry for design purposes
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