| Post Name | JUNIOR INSTRUCTOR (TOOL & DIE MAKER)-INDUSTRIAL TRAINING DEPT. |
|---|---|
| Question Paper Code | 051/2019 |
| Date of Test | 25 October 2019 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Least count of vernier micrometer is __________.
Answer
C. 0.001 mm
2
In a double cut file, one cut is at an angle of 708. What is the angle of the other cut ?
Answer
D. 518
3
Ra value in microns for Roughness Number N4 is __________.
Answer
A. 0.2
4
LLL is the Roughness symbol for Roughness grade number __________.
Answer
C. N5
5
In assemblies, the parts are located by using taper pins. What is the taper of such pins ?
Answer
C. 1:50
6
Vernier micrometer have additional equally spaced vernier graduations given above the datum line. The no. of such vernier graduations are __________.
Answer
B. 10
7
Adjustable caliper gauges are used for __________.
Answer
D. Checking external diameters of parts
8
The process of chemical reduction of the iron ore to pig iron is known as __________.
Answer
C. Smelting
9
The furnace used for the manufacturing of steel from pig iron is known as __________.
Answer
C. Bessemer furnace
10
Wringing is the act of joining __________ together.
Answer
B. Slip gauge
11
Angle of counter sinking portion of centre drill is __________.
Answer
C. 608
12
Shaping of a grinding wheel to make it run concentric with the axis is known as __________.
Answer
B. Truing
13
Least count of vernier bevel protractor is __________.
Answer
B. 5’
14
If ‘d’ is the diameter and ‘n’ is the rpm, then cutting speed is __________.
Answer
A. πdn/1
15
Different types of errors may occur when we take measurements. Cosine error is related to which measuring instruments ?
Answer
C. Dial test indicator
16
The lathe beds are mostly made of __________.
Answer
C. Grey cast iron
17
Which one of the following is not a parts of a lathe ?
Answer
D. Arbor
18
Conicity is ________.
Answer
C. (D − d)/l
19
Bell metal is an alloy of __________.
Answer
D. Tin and Copper
20
In Indian Standard system for Limits and Fits, there are __________ grades of Fundamental tolerances.
Answer
C. 18
21
In a plane or simple index head, one complete rotation of the index crank rotates the spindle by __________.
Answer
C. 1/40 of a revolution
22
Cast metal bonding to the die casting surface is known as __________.
Answer
Question Cancelled
23
The amount of die opening at the time the angled pin contacts the core block in die casting dies is known as __________.
Answer
C. Dwell
24
Which half of the die casting dies is secured to the stationary platen of the machine ?
Answer
A. Cover half
25
Which grade of grinding wheel is preferred for grinding hard metals ?
Answer
B. Soft grade wheels
26
In an electric discharge machining process, electrode is connected to __________.
Answer
B. Cathode
27
Clapper box are used on shaper to __________.
Answer
B. To lift the tool in return stroke
28
A 200 mm long cylindrical piece has one end dia. is 100 mm and the second dia. is 80 mm. The amount of Conicity is __________.
Answer
A. 0.1
29
The heat treatment process for relieving internal stress after cold working in metals is known as __________.
Answer
A. Annealing
30
The hardening temperature of HSS is __________.
Answer
D. 1250 8 C
31
M code for coolant ON is __________.
Answer
C. M08
32
This method of actuation is used when a grater split delay is required __________.
Answer
B. Dog leg cam actuation
33
The space between two mould halves, when the mould is opened is termed as __________.
Answer
B. Day light
34
__________ is the only possible method to encapsulate delicate electronic parts.
Answer
A. Transfer moulding
35
It is a process of forming hollow articles from a softened plastic tube.
Answer
C. Blow moulding
36
The defects on a die cast component due to cold metal, slow shot, low die temperature is known as __________.
Answer
C. Cold shut
37
Lead is produced from its ore __________.
Answer
D. Galena
38
Melting point of Aluminium is __________.
Answer
C. 660 8 C
39
Non selective assembly is __________.
Answer
B. Rapid and costs are reduced
40
There are __________ Fundamental deviations in the BIS system of Limits and Fits.
Answer
D. 25
41
Which is an interference fit ?
Answer
A. 25H7/p6
42
The fundamental deviation symbol ‘H’ is chosen for the holes, when the hole basis system is followed. This is because __________.
Answer
B. The lower deviation of the Hole ‘H’ is zero
43
The aperture of the sprue bush is tapered to facilitate __________.
Answer
C. Easy removal of the sprue
44
In a transfer moulding, excessive flash occurred due to __________.
Answer
B. Mould not closed satisfactorily
45
It is used to make continuous shapes such as tube, rods, pipes etc of thermoplastic is __________.
Answer
D. Extrusion moulding
46
Moulding shrinkage increases with __________.
Answer
A. Increase of mould temperature
47
For ejecting small cylindrical moulding __________ ejector is used.
Answer
D. Sleeve ejector
48
Gate that provided below the parting surface of the mould is __________.
Answer
B. Submarine gate
49
Heel blocks in moulds are also called__________.
Answer
B. Support blocks
50
The __________ aligns the mould to the machine nozzle.
Answer
A. Register ring
51
Which pilot nose profile is stronger in strength and smoother in action ?
Answer
A. Bullet nose
52
In press tools, the __________ guide the strips in the tool.
Answer
D. Gauges
53
For faster manual feeding, which type of stoppers are preferred ?
Answer
D. Trigger stop
54
Punches that perform cutting and non-cutting operations are called __________.
Answer
B. Hybrid punches
55
Stock materials which are fed individually into the tool for processing are called __________.
Answer
D. Unit stock
56
The minimum amount of land in die opening is __________.
Answer
C. 3 mm
57
If the cutting clearance is optimum, cut band produced is approximately __________ the thickness of the stock material.
Answer
B. One third of
58
In blanking, cutting clearance is given on __________.
Answer
A. Punch
59
__________ may be considered as a series of shearing operations performed one after the other by the same tool.
Answer
B. Broaching
60
When any holes require two or more tools to be used __________ bushes are used ?
Answer
A. Slip bushes
61
The pump used in a hydraulic power pack is __________.
Answer
A. Gear pump
62
This type of jig allows the part to be machined on every surface without repositioning the part in the jig.
Answer
C. Box jig
63
__________ clamps are not used when there are chances for strong vibration.
Answer
A. Cam action clamps
64
Minimum angle that can be indexed in a direct indexing is 108. What is the maximum number of divisions that can be indexed ?
Answer
D. 36
65
The ability of the bond to hold abrasive grains in the grinding wheel is termed as __________.
Answer
B. Grade
66
A 12 mm diameter end mill is to be set for a cutting speed of 14 m/min. The rpm to be set on the machine should be __________.
Answer
D. 371.21
67
G code for dimensioning in inch mode is __________.
Answer
Question Cancelled
68
When cutting and non-cutting operations takes place in a single station, it is called __________.
Answer
A. Combination tool
69
A small edge radius in blanked component is the result of cutting clearance is __________.
Answer
D. Optimum
70
The burr side of a blank is always towards the __________.
Answer
A. Punch side
71
The cutting clearance for sheet metal with thickness 2 mm and shear strength 360 N/mm2 is __________.
Answer
D. 0.12 mm/side
72
If the side of a square shaped component is 4 mm and the thickness is 2 mm and the shear strength is 360 N/mm2. The cutting force is __________.
Answer
A. 11.52 kN
73
The operation of separating the stock material along a straight line in a double cut is called __________.
Answer
D. Parting off
74
Screws and dowel holes drilled should be away from the edge and opening of the die by __________, if the diameter of the screw and dowel is d.
Answer
A. 1.5d
75
Pantograph die-sinking and engraving machine operates on the principle of __________.
Answer
D. Copy milling
76
Punches located and positioned by punch holders are known as __________.
Answer
A. Integrated punches
77
The exact position in which the stock strip must be positioned in order to obtain dimensionally correct component is __________.
Answer
A. Registry position
78
When it is necessary to clamp the strip in addition to its stopping function __________ is used ?
Answer
A. Travelling stripper
79
Bulge clearance is provided in the __________.
Answer
D. Back gauge
80
Nesting gauges are used whenever __________.
Answer
D. Unit stock is fed into the tool
81
While bending, the neutral plane lies approximately at a distance of __________.
Answer
A. 0.3t to 0.5t from the inner surface
82
All bends are distorted like forming. This distortion is called __________.
Answer
B. Plastic deformation
83
If the blank diameter is ‘D’ and cup or shell diameter is ‘d’, then coefficient of drawing K = __________.
Answer
D. D/d
84
The clearance between the walls of the drawing punch and the die should be __________.
Answer
C. Greater than the thickness of the metal
85
A smaller bend radius results __________.
Answer
C. Weaker spring back
86
Why metal rupture or bottom break off in drawing ?
Answer
A. Blank holding pressure is too high
87
Tool makes buttons are in corporate with :
Answer
C. Precision boring
88
__________ is basically a method of blanking or piercing parts without die break.
Answer
D. Fine blanking
89
Maximum number of dowels used for positioning is __________.
Answer
C. 2
90
In drawing operation, more than one reduction will be necessary if the ratio of height of cup ‘h’ to the diameter of the cup ‘d’ (h/
Answer
A. 0.75
91
The maximum number of locating points in one plane should be __________ in order to prevent rocking.
Answer
B. 3
92
When the punch does not ‘bottom out’, the bending process are referred to as __________.
Answer
C. Air bending
93
Spring back can be prevented in wiping dies by __________.
Answer
B. Ironing the material
94
Bending along a curved axis is termed as :
Answer
D. Forming
95
If the load is heavy and end feeding is required, __________ die set is used.
Answer
A. Diagonal pin type
96
__________ causes the metal to begin flowing plastically.
Answer
D. Draw ring
97
A blanked component weights 450 gms and is made from 1.5 mm thick plate material and whose weight per sq.cm is 1.7 gms. What is the blank diameter ?
Answer
B. 18.36 cm
98
__________ is the connecting rod in a crank driven press.
Answer
C. Pitman
99
Double action presses are mainly used for __________.
Answer
A. Drawing
100
The locating system should be such that it would be difficult for the operator to load the workpiece incorrectly in a fixture. This is known as __________.
Answer
D. Fool proofing
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