| Post Name | Machinist (SR for SC/ST) - Ground Water |
|---|---|
| Question Paper Code | 165/2023/OL |
| Category Code | 192/2022 |
| Date of Test | 6 December 2023 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
What is the expanded form of ABC in ļ¬rst aid?
Answer
C. Airway, breathing and circulation
2
Which one of the following is the personal safety?
Answer
B. Never lean on the machine
3
What is the standard colour code used for identifying warning signs?
Answer
C. Yellow
4
Which type of extinguisher is used for class 'B' ļ¬re?
Answer
D. Carbon dioxide extinguisher
5
What is the meaning of 'Seiri' in 5S of Japanese methodology?
Answer
A. Sort
6
What is the full form of PPE in safety?
Answer
D. Personal protective equipment
7
Blue colour waste bin indicates for
Answer
B. Paper
8
Which term refers that needed items to be kept in correct place for easy handling as per 5S concept?
Answer
A. Set
9
Which is correct attitude for common soft skills?
Answer
D. All of the above
10
What is the immediate life saving procedure to the injured person?
Answer
C. First aid
11
Which marking media provide clear lines on machine ļ¬nished surface?
Answer
D. Prussian blue
12
What is the reading accuracy of steel rule?
Answer
D. 0.50 mm
13
How the dividers are speciļ¬ed?
Answer
B. Joint and length
14
Which caliper provide line adjustment of dimension?
Answer
D. Spring joint caliper
15
Which one of the following punch is used for locating centre of the holes?
Answer
C. Centre punch
16
What is the other name of Bench vice?
Answer
A. Engineer's vice
17
Which type of hammer is used for reveting purpose?
Answer
C. Ball-Pein hammer
18
Which tool is used to ļ¬nish the resharpened divider point?
Answer
D. Oil stone
19
Which grade of angle plates are used for general machine shop work?
Answer
B. Grade 2
20
What is the main advantage of adjustable parallel block?
Answer
A. To set diļ¬erent height
21
What is the pitch of the spindle thread of metric micrometer?
Answer
D. 0.50 mm
22
Which part of a micrometer ensures a uniform pressure between the measuring faces?
Answer
B. Ratchet stop
23
Which mechanism is used in a lever type dial test indicator make the pointer rotation?
Answer
B. Lever and scroll mechanism
24
What is the least count of a vernier caliper if 19 main scale divisions are divided in to 20 equal parts on the vernier scale?
Answer
C. 0.05 m.m
25
Which part of the vernier bevel protractor should be kept in contact with the datum surface from which the angle is measured?
Answer
A. Stock
26
What is the reason for using dial indicator instead of scriber point in vernier height gauge?
Answer
D. To check eccentricity
27
Which is the measuring instrument used for measuring the chordal thickness of a gear tooth at the pitch circle of a gear?
Answer
C. Vernier gear tooth caliper
28
What is the use of tube micrometer?
Answer
A. To measure the thickness of pipes
29
How specify a vernier height gauge?
Answer
C. Height of beam
30
Which part of the micrometer has marked datum line?
Answer
A. Barrel/sleeve
31
The most suitable pitch of the hacksaw blade for cutting soft material such as bronze, brass etc. is
Answer
D. 1.8 m.m
32
Which ļ¬le used for ļ¬ling narrow grooves and angles above 10Ā°?
Answer
D. Knife edge ļ¬le
33
Which ļ¬le has the parallel edges throughout the length?
Answer
C. Hand ļ¬le
34
Hand taps are available in set of three. They are ļ¬rst tap, second tap and third tap. What is the other name of ļ¬rst tap?
Answer
D. Taper tap
35
Which chisel is used for separating metals after chain drilling?
Answer
A. Web chisel
36
Which one of the following cutting tool used for enlarging by ļ¬nishing previously drilled holes to accurate sizes?
Answer
C. Reamer
37
What is the purpose of second cut ļ¬le?
Answer
B. Make the job close to the ļ¬nishing size
38
What is the other name of cross cut chisel?
Answer
D. Cape chisel
39
Which part of the milling machine houses all the driving mechanism for the spindle and the table feed?
Answer
C. Column
40
What type of cutter having teeth at the end as well as on periphery?
Answer
B. End mill cutter
41
What is denoted by 100 in the speciļ¬cation of plain milling cutter of size 50 Ć 100 Ć 27 bore, 45Ā°?
Answer
D. Length of the cutter
42
What is the formula for index crank movement for simple indexing?
Answer
C. 40/N
43
The mechanism used for converting rotary motion into reciprocating motion or vice versa is
Answer
C. Rack and pinion
44
Which standard number of cutter is used to cutting gear tooth of involutes proļ¬le of 12 teeth?
Answer
D. No. 8
45
The tooth proportions of spur gears are expressed in terms of
Answer
A. Module
46
The radial distance between the pitch circle and the outside circle is called
Answer
A. Addendum
47
The imaginary circle on which two mating gears seems to be rolling is called
Answer
C. Pitch circle
48
A spur gear with pitch circle diameter PD and number of teeth N. The module m is deļ¬ned as
Answer
A. m = PD/N
49
A gear has a module of 2 mm and the number of teeth is 24, what is the pitch diameter of that gear wheel?
Answer
C. 48 mm
50
What is the line generated by the progressive rotation of a point around a cylinder?
Answer
B. Helix
51
What is the property of oil that the oil can with stand high pressure without squeezing from bearing surface?
Answer
B. Viscosity
52
How many numbers are in metric tap set?
Answer
C. 3
53
What is the formula to ļ¬nd out RPM of drill?
Answer
C. (V Ć 1000)/(d Ć Ļ)
54
What is the formula to ļ¬nd tap drill size in general purpose?
Answer
A. Major diameter minus pitch
55
Which portion of drill the ļ¬utes are cut?
Answer
A. Body
56
What is termed as peripheral speed of drill?
Answer
C. Cutting speed
57
What is the point angle of drill for drilling mild steel?
Answer
C. 118Ā°
58
Thermal stability is one of the _____________ of a good lubricant
Answer
C. Property
59
What is name of the gear unit of the lathe which consists of three gears, each having same number of teeth?
Answer
D. Tumbler gear unit
60
Which type of lathe is more suitable for mass production?
Answer
D. Capstan and turret lathe
61
Which part of the lathe provided means of supporting the tool rest which holds the cutting tool?
Answer
A. Top slide
62
Which tool angle is ground to prevent the tool rubbing from the work in a lathe?
Answer
B. Clearance angle
63
What is the accuracy of work that can be trued by 4-jaw chuck?
Answer
A. 0.02 mm
64
Which type of knurling tool has got one roller right hand helical teeth and others have left hand helical teeth?
Answer
D. Diamond knurling
65
What is the name of the operation in a lathe for removing the metal from the work piece by feeding the tool at right angles to the axis of the work?
Answer
A. Facing
66
Which one of the following is the advantage of taper turning attachment over tail stock oļ¬ set method?
Answer
D. Power feed can be given for both internal and external taper
67
The grade of slip gauges are used for general workshop application is?
Answer
D. Grade 2 accuracy
68
The act of joining the slip gauges together while building up to the sizes is called
Answer
A. Wringing
69
Cutting speed is expressed in
Answer
C. meter/minute
70
A plug gauge which has GO and NO GO sizes on the same end is known as?
Answer
C. Progressive plug gauge
71
Pedestal grinder comes under the category of
Answer
C. Oļ¬-hand grinding machines
72
The type of cutting tool material used in CNC turning is
Answer
D. Option (B) and (C)
73
Which of the statement is true with the programming of VMC? (i) MDI mode is used for copying part programme in VMC (ii) Auto mode is used for copying part programme in VMC (iii) Jog mode is used for copying part programme in VMC
Answer
B. (ii) only
74
Which of the following statements are correct in the case of a bench grinding machine?
Answer
D. All of the above
75
PCLNL 25 25 M is a kind of tool holder in CNC turning. The letter 'C' indicates
Answer
B. Insert shape
76
Which one of the statements is true with the G code of VMC? (i) G 83 is used for back boring cycle in FANUC (ii) G 85 is used for back boring cycle in FANUC (iii) G 87 is used for back boring cycle in FANUC
Answer
C. (iii) only
77
Which of the following statement is true with a vertical spindle surface grinding machine?
Answer
A. The face or sides of the wheel are used for grinding
78
G 02 code refers to the function of
Answer
C. CW circular interpolation
79
Which one of the statement is correct with the machining operations in CNC milling? (i) Side milling is done in point to point system (ii) Face milling is done in point to point system (iii) Drilling is done in point to point system
Answer
D. (iii) only
80
The work is held between centres for grinding operation. On which machine this operation can be performed?
Answer
B. Cylindrical grinding machine
81
The M code for the function coolent on
Answer
A. M 08
82
Which one of the statement is true with the CNC machine stoppage due to power shut down?
Answer
C. Auto cycle button is pressed to restart the machine from power shut down
83
For grinding high carbon steel, which type of abrasive can be used?
Answer
A. Aluminium oxide
84
The disadvantage of open loop control system is
Answer
B. They do not have provision for feedback signal to be compared with the input signal
85
Which one of the statements is true with the tool life of CNC machines?
Answer
A. The equation for tool life is VTāæ = C
86
A-16-P-5-V-BE denotes the speciļ¬cation of a grinding wheel. The number 16 belongs to
Answer
D. Coarse grain size
87
Which statement is not correct with the use of ball screw in CNC lathe?
Answer
C. High coeļ¬cient of friction
88
Which one of the following statement is true with the VMC?
Answer
B. The 'X' axis movement is left and right
89
The cause of the defect glazing is due to the
Answer
C. Grinding hard materials on a hard grade bonded wheel
90
Which statement is true with the absolute mode?
Answer
A. The coordinates of a point are always referred with reference to the same datum
91
Which one of the statement is true with the tooling system in CNC?
Answer
D. The letter 'H' indicates tool length oļ¬set
92
The phenomenon happens when small particles of the material being ground become embedded in the space between the grains of the grinding wheel is
Answer
C. Loading
93
The process of work oļ¬set in CNC lathe is
Answer
B. Setting the job and set the tool to touch the face of the job and the diameter of the job
94
Which one of the statement is true with the M code in CNC?
Answer
B. M 04 S 500 indicates spindle rotation CCW 500 rpm
95
Which of the following statement is true with the selection of an abrasive wheel for a particular job?
Answer
D. All of the above
96
The function of JOG mode
Answer
B. It allows correct control by processing the feed direction switch on the operator panel
97
Which of the statement is true with work holding in VMC?
Answer
A. The work is set on a machine vice with the help of a dial test indicator
98
Which machine is suitable for grinding the point angle of a twist drill accurately?
Answer
B. Tool and cutter grinder
99
The causes of CNC machine crash
Answer
D. Option (1) and (2)
100
Which of the statements is true with the safety of VMC?
Answer
B. To avoid machine collision simulation is used
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