| Post Name | Junior Instructor (Draughtsman Mechanic) - Industrial Training |
|---|---|
| Question Paper Code | 180/2023 |
| Category Code | 007/2022 |
| Date of Test | 4 December 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The instrument used for drawing curved lines other than constant radius arcs are called :
Answer
C. French curves
2
The trimmed size of the sheet designation A2 is ——————— mm.
Answer
B. 420 × 594
3
In unidirectional system the dimensions are placed :
Answer
D. By breaking the dimension line in the middle
4
The representative fraction is 5. The actual length is 20 mm. Find the length of the drawing :
Answer
A. 10 cm
5
The diagonal scales are used when measurements are required in ——————— units.
Answer
C. 3
6
What are the main parts of the Vernier scale?
Answer
B. Primary scale and Vernier scale
7
How many pairs of parallel lines are there in regular Hexagon?
Answer
C. 3
8
A line passing through the focus and perpendicular to the directrix is called :
Answer
A. Axis
9
Which of the following is the eccentricity for hyperbola?
Answer
D. 3/2
10
A Curve generated by a point on the circumference of a circle which rolls without slipping
along a fixed straight line :
Answer
C. Cycloid
11
The front view of a point is 50 mm above the reference line and the top view is 20 mm below
the front view. The point lies in :
Answer
B. Second angle
12
When a line is perpendicular to HP and parallel to VP then what figure will be projected on
HP?
Answer
A. Point
13
State the position of a point the front view of which lies on the reference line and the top view
is 40 mm above it :
Answer
C. 40 mm behind V.P and in the H.P
14
If an isometric drawing is made use of isometric scale then the drawings are called :
Answer
A. Isometric projection
15
Which method of development is employed in case of sphere?
Answer
D. Approximation method
16
What is the largest diameter of the screw thread?
Answer
C. Nominal diameter
17
The thread angle of British Standard Witworth
Answer
B. SW) threads are :
18
Screw thread profile adopted by B.I.S.:
Answer
A. Unified thread
19
A double-threaded screw has a pitch of screw 2 mm. How much the screw advances if it is
made 2 revolutions?
Answer
D. 8 mm
20
Which thread is denoted by SQ 50 × 10?
Answer
A. Square thread with 50 mm major diameter and 10 mm pitch
21
Screwed joints are :
Answer
B. Temporary joints
22
A fastening device having external threads on its both ends is called :
Answer
D. Stud bolt
23
A nut in which slots are cut in a cylindrical collar provided on the top of the nut is called :
Answer
C. Castle nut
24
If the diameter of the rivet is d, then what is the margin?
Answer
B. 1.5 d
25
According to arrangements of plates, which of the following is not a type of riveted joint?
Answer
D. Zigzag joint
26
For a single riveted double strap butt joint, number of rows of rivet is :
Answer
A. Two
27
Drawing showing the position of each part with respect to each other is called :
Answer
A. Assembly drawing
28
Which of the following is not a part of Knuckle joint?
Answer
D. Cotter
29
What does the letter “a” indicate in the fillet weld dimensioning?
Answer
C. Throat thickness
30
What is the angle of deviations provided on elbows and bends in pipe works?
Answer
A. 90°and 45°
31
The difference between the size of the manufactured product and the corresponding basic
size :
Answer
B. Actual deviation
32
A dimension is stated as 25 ± 0.03 mm in a drawing. What is the tolerance?
Answer
D. 0.06 mm
33
The tolerance zone of the hole and the shaft overlaps in :
Answer
C. Transition fit
34
In hole basis system :
Answer
B. The size of the hole is made constant
35
According to Indian standards, the total number of tolerance grades are :
Answer
C. 18
36
The predominent direction of tool that makes the surface pattern on the machined surface is
called :
Answer
B. Lay
37
The surface roughness on a drawing is represented by :
Answer
B. Triangles
38
Roughness values 0.2 to 0.8 microns is indicated by which symbol?
Answer
C. Three triangles
39
Which of the following process give minimum surface roughness?
Answer
A. Lapping
40
Drawing showing the part of a machine to be manufactured in a shop :
Answer
D. Shop floor drawing
41
Expansion of UCS is :
Answer
C. User Co-ordinate System
42
Which of the following are draft setting commands?
(i) Snap
(ii) Grid
(iii) Limits
(iv) Ortho
Answer
D. Only (i), (ii) and (iv)
43
The function key used for object snap ON/OFF in Auto CAD is :
Answer
B. F3
44
From the following which are the options used for drawing a line?
(i) Absolute co-ordinates option
(ii) Relative co-ordinates option
(iii) Polar co-ordinates option
Answer
D. All of the above
45
The maximum number of sides permitted by Auto CAD in drawing a polygon is :
Answer
D. 1024
46
Which are the modifying commands used in Auto CAD?
(i) Copy
(ii) Hatch
(iii) Mirror
(iv) Offset
Answer
C. Only (i), (iii) and (iv)
47
The command used in Auto CAD to split compound objects like polyline, block is :
Answer
A. Explode
48
The command used to select a viewing direction for three-dimensional view of a drawing
specified by X, Y and Z co-ordinates is :
Answer
B. VPOINT
49
The command used in Auto CAD to draw a solid by giving a thickness to object is :
Answer
A. EXTRUDE
50
In Auto CAD text, the command “%%D” is used for representing :
Answer
B. Degree
51
The command used for creating realistically shaded image of a three-dimensional wireframe
or solid model is :
Answer
B. Render
52
Which of the following is/are output devices?
(i) Plotter
(ii) Web Cam
(iii) Projector
Answer
C. Only (i) and (iii)
53
Which are the commonly used CAD packages?
(i) STAAD
(ii) IDEAS
(iii) ADOBE PHOTOSHOP
(iv) PRO-Engineers
Answer
B. Only (i), (ii) and (iv)
54
The command used to display the various properties of 2D and 3D objects is :
Answer
B. MASSPROP
55
The angle between the edges of a cube in the isometric position will be equal to :
Answer
D. 120°
56
The practical limit ratio of forward and return stroke time in shaper is :
Answer
B. 3:2
57
The included angle of lathe center for general purpose work is:
Answer
A. 60 degree
58
Climb milling is also called :
Answer
B. Down milling
59
Gang milling is the operation :
Answer
C. Used for machining several surfaces of a workpiece simultaneously
60
The largest diameter of work that will revolve without touching the bed of lathe is :
Answer
A. Swing diameter over bed
61
The angle of inclination of lip with drill axis twist drill for general work is :
Answer
B. 59 degree
62
A device which holds and locates a workpiece and guides and controls one or more cutting
tools is called :
Answer
D. Jig
63
Identify method used for motion control of tools in NC systems from given options.
Answer
D. All of the above
64
The chip space between the back of one tooth and the face of next tooth in a plain milling
cutter is called :
Answer
C. Gash
65
The reciprocating member of a shaper is called :
Answer
C. Ram
66
Projection welding is
Answer
B. Multi spot welding process
67
Oxygen to acetylene ratio in the case of carburizing flame is :
Answer
A. 0.9 : 1
68
Chaplets are :
Answer
B. Core supporters
69
Tool used to cut threads on the inside of a hole, as in a nut is :
Answer
A. Tap
70
Brake is a machine used in sheet metal work for :
Answer
A. Bending and folding
71
The process of increasing the thickness of a bar at the expense of its length by end pressure
is :
Answer
D. Upsetting
72
In sand moulding, the top part of flask is called :
Answer
A. Cope
73
The operation of cutting a sheet metal through part of its length and then bending the cut
portion is :
Answer
D. Lancing
74
The round hole provided in the Anvil is called :
Answer
C. Pritchel hole
75
In thermit welding iron oxide and aluminium powder are mixed in the proportion :
Answer
D. 3:1
76
On what basis are fire and water tube boilers classified?
Answer
D. Depending tubular heating surface
A 11 180/2023
77
Both the pressure and velocity of steam drop in the case of :
Answer
B. Reaction turbine
78
The first nuclear power plant in India was installed at :
Answer
A. Tarapur
79
The economiser in a boiler is used to :
Answer
Question Cancelled
80
La Mont boiler is a ——————— pressure, water tube steam boiler working on forced
circulation.
Answer
B. High
81
Which of the following statements is incorrect?
Answer
B. Mitre gears are spur gears with the same number of teeth
82
Priming is necessary in the following type of pump :
Answer
C. Centrifugal pump
83
Belt drive is :
Answer
B. Not a positive drive
84
The centrifugal tension in belts :
Answer
D. Increases the belt tension without affecting power transmitted
85
The stress in disc type flywheel as compared to rim type flywheel is :
Answer
B. More
86
The angle between king pin centre line and vertical in the plane of wheel is called :
Answer
B. Castor
87
In Battery coil ignition system, the correct sequence of flow of current is :
Answer
A. Battery-ammeter-ignition coil-distributor-spark plug
88
In four cylinder in-line engine, the probable firing order is :
Answer
A. 1-3-4-2
89
The following type of arrangement is used in synchromesh type gearbox :
Answer
Question Cancelled
90
The self-ignition temperature of diesel when compared to that of gasoline is :
Answer
B. Lower
91
Which of the following constituents of the steel is weak and soft?
Answer
D. Ferrite
92
Dislocation in materials is a ____________ defect.
Answer
B. Line
93
Error in measurement is the difference between :
Answer
B. True value and measured value
94
One Angstrom is equal to :
Answer
C. 10–10 m
95
What is the percentage of carbon in plain carbon steel?
Answer
C. Less than 1.7%
96
Least count of a micrometer is :
Answer
D. 0.01 mm
97
Which of the following is incorrect with regard to vernier height gauge?
Answer
A. Both the surfaces of measuring jaw should be at 45° to the base
98
This chart is a graphic representation of all the production activities occurring on the shop
floor :
Answer
C. Flow process chart
99
Which of the following industries should be located near the vicinity of raw materials?
Answer
D. Steel mills
100
On which of the following types of surfaces should a class A fire extinguisher not be used?
Answer
D. Electrical equipment
————————
180/2023 14 A
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