| Post Name | Operator -Kerala Agro Machinery Corporation Ltd |
|---|---|
| Question Paper Code | 009/2022 |
| Category Code | 148/2019 |
| Date of Test | 25 March 2022 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
In linear indexing if the dividing head spindle and lead screw spindle are connected with
gear ratio of 1:1 and lead screw of milling machine has a pitch 5 mm then one rotation of
index crank move the table :
Answer
B. 0.125 mm
2
Disadvantage of CNC machine :
Answer
C. High maintenance cost
3
Standard marking on grinding wheel is 51-A46H5V8. The letter ‘H’ denotes :
Answer
D. Grade
4
In CNC turning centre, which type guide way that doesn’t affected the alignment with
spindle axis by wear and tear :
Answer
A. V - bed
5
Telescopic gauges are used to measure :
Answer
C. Holes ranges from 12.7 mm to 152.4 mm
6
Tolerance obtained in cylindrical grinder is:
Answer
A. 0.0025 mm
7
A left hand helix is to be cut if an operator standing in front of the machine facing the spindle
of machine :
Answer
A. The table swiveled in a clockwise direction and spindle must be revolved in
opposite direction to that of the gear on the lead screw
8
Ohm’s law states that:
Answer
D. I ∝ V/R
9
Grade of grinding wheel of Hard bond refers range from :
Answer
C. Q to Z
10
Hydrostatic guideways in CNC means :
Answer
C. Both
11
Templates are used for :
Answer
A. Checking and marking profiles
12
In surface grinding machine, the crossfeed movement is obtained by moving of :
Answer
B. Crosswise movement of saddle
13
For cutting involute rack teeth the cutter number used for required module is :
Answer
D. Cutter No: 1
009/2022 4 A
14
Screw thread micrometer is used to measure :
Answer
C. Effective Diameter
15
In which type of slotting machine is provided horizontal movement in addition to vertical
movement :
Answer
D. Travelling head type
16
Gears are used to connect shafts which are at an angle but not intersecting:
Answer
A. Hypoid gear
17
The process of tempering the steel involves :
Answer
C. Reheating below 400°C Soaking Cooling
18
Equation for differential indexing, if A is assumed number and N is the number of division:
Answer
B. A − N(40/A)
19
Principle behind the step up transformer is :
Answer
C. Mutual Induction
20
The code used to cancel cutter radius compensation :
Answer
B. G40
21
The mechanism provided on rotary movement of table of slotting machine is :
Answer
D. Worm and worm wheel
A 5 009/2022
22
Control system in which no feedback is available :
Answer
A. Open loop
23
Mechanical switching device which breaks the current under abnormal condition like short
circuit :
Answer
B. MCB
24
For machining thin work piece which milling method is preferable :
Answer
D. Down milling
25
The projecting part of cam which impart reciprocating motion to follower :
Answer
A. Lobe
26
In angular indexing one rotation of index crank rotates the spindle :
Answer
D. 540 minute
27
Which type of drill jig is used for drilling thin or soft job :
Answer
B. Sandwich jig
28
Expanded form of MDI :
Answer
A. Manual Data Input
29
Material used for sintered carbide cutters :
Answer
D. All of the above
30
Letter which denotes Resinoid bond :
Answer
C. B
31
Which device is used for feedback in CNC control system?
Answer
D. Encoder
32
Example of natural abrasive :
Answer
C. Both
33
Working depth of two mating gear, if ha = addendum height and hf = dedendum height:
Answer
A. 2ha
34
Ability of metal to withstand shock or impact :
Answer
B. Toughness
35
In Universal milling machine the table can be swiveled in :
Answer
C. 45° both direction
36
Lower Critical Temperature (LCT) and Upper Critical Temperature (UCT) of eutectoid steel
is :
Answer
A. LCT 723°C UCT 723°C
37
M code for program stop :
Answer
C. M00
38
Shaping of grinding wheel to make it run concentric with axis is called :
Answer
B. Truing
39
Which code is used for absolute programming?
Answer
A. G90
40
In electrical installation the fuse are always connected to :
Answer
C. Live wire
41
Wheel speed or surface speed of grinding wheel is expressed as :
Answer
A. m/sec
42
Point to point control system are used for process like :
Answer
C. Drilling
43
The slotting tool does not have :
Answer
A. Side rake
44
Effect of loading of grinding wheel :
Answer
D. All of the above
45
Block number in a part program is represented by :
Answer
B. N word
46
The element such as outside diameter, addendum, dedundum etc. in bevel gear are measured
from :
Answer
B. Large end
47
The letter which indicates the inductance :
Answer
A. L
48
Longitudinal movement of slotting machine means :
Answer
B. Table is fed perpendicular to column
49
Meaning of grit in grinding wheel :
Answer
D. Grain size
50
Driving mechanism used for transmission of motion at constant velocity ratio without creep
and slippage :
Answer
B. Chain drive
51
G70P_Q_F_; here P denotes
Answer
D. Starting block number
52
Meaning of G00 in CNC part program :
Answer
B. Rapid traverse
53
Maximum permissible overall variation of form or position of feature :
Answer
B. Geometrical tolerance
54
Preparatory codes are also called :
Answer
D. G code
55
Code for program reset and rewind :
Answer
D. M30
56
What is the expanded form of ABC in first aid?
Answer
C. Airway, Breathing and circulation
57
What is the standard colour used for identifying the Bin for the metal waste material?
Answer
A. Red
58
The ‘5S’ Concept of methodology for work place organization arises from which country:
Answer
D. Japan
59
Which safety practice refers, wear safety shoes or boots?
Answer
D. Personnel safety
60
Which personnel protective equipment is used to maintain a good respiration?
Answer
B. Mask
61
What is the point angle of drill for drilling cast iron?
Answer
D. 118°
62
Files are made from which material :
Answer
B. High carbon steel
63
What is the included angle of punch used for 8 making light punch mark needed to position
dividers and name the punch?
Answer
C. 30° Prick punch
64
What is called the horizontal distance from a point on one thread form to the corresponding
point on the adjacent thread measured parallel to the axis?
Answer
A. Pitch of thread
65
What is the body material of Bench Vice?
Answer
B. Cast iron
66
What type of work is done by Pedestal type Grinders?
Answer
C. Heavy duty type
67
The extreme permissible sizes between which the actual size is contained and between which
the component is made is named as :
Answer
C. Limit of size
68
The difference between the maximum limit of size and minimum limit of size is named as :
Answer
C. Tolerance
69
Which material is used in the manufacture of anvil of the outside micrometer?
Answer
B. Alloy steel
70
What is the least count of Vernier caliper in which 9 main scale divisions are divided into
10 equal parts in vernier scale?
Answer
B. 0.1 mm
71
The cutting speed recommended for drilling brass material in meters/minutes :
Answer
C. 35 to 50
72
What types of tap wrench is used in restricted places?
Answer
B. T-Handled tap wrench
73
Which portion of Hammer head is not hardened or left soft?
Answer
C. Cheek
74
Which drilling machine is capable of drilling holes upto 12.5 mm?
Answer
B. Sensitive drilling machine
75
The operation of beveling the end of drilled hole is called :
Answer
C. Countersinking
76
Which mechanism in lathe machine is also called as reversing gear unit?
Answer
C. Tumbler gear unit
77
What type of taper is provided on the shank of lathe centre?
Answer
B. Morse taper
78
What is the name of centre accommodated in main spindle sleeve?
Answer
D. Live Centre
79
Which part is assembled in compound rest other than compound slide?
Answer
A. Swivel base
80
Which property of cutting tool is the amount of hardness possessed by a cutting tool at
normal temperature?
Answer
D. Cold hardness
81
Which part of the lathe is locked while cutting taper by form tool method?
Answer
B. Carriage
82
Which angle of cutting tool control the geometry of chip formation?
Answer
D. Rake angle
83
Which type of centre is used at the end of the job if no countersunk hole is permitted?
Answer
C. Female centre
84
What is the name of chuck that hardened steel sleeve having slit cut partially?
Answer
B. Collet chuck
85
Which mandrel is used for machining similar parts where internal diameter varies slightly?
Answer
D. Expansion stud mandrel
86
What do you mean by ATC preparation of part programming axis convention of CNC
Machine?
Answer
B. Automatic tool changer
87
What is the meaning of open loop and closed loop in CNC Machine?
Answer
B. These both are two type of control system
88
The representation of complex 3-D geometrics of the outer shell of the product is called :
Answer
C. 3-D Modeling
89
What is the purpose of turret head on CNC Lathe machine?
Answer
B. It hold the cutting tools
90
Which one of the following code is suitable for grooving operation?
Answer
D. G75
91
What is “T” in ISO standard for specifying tool insert TNMG 12048?
Answer
B. Triangular shaped
92
What is the clearance angle for boring bar tool used in CNC Machine?
Answer
B. 7°
93
Which is the G-code suitable for thread cutting?
Answer
B. G–32
94
The Control loop unit of M.C.U is always :
Answer
A. A hardware unit
95
Point-to-point system used in CNC used for :
Answer
A. Reaming
96
Which chart is used to record the skill of the operator in practice?
Answer
D. Performance chart
97
Which belong to total productive maintenance?
Answer
D. Reduces maintenance cost
98
Which maintenance records mention the date of commissioning of machine?
Answer
B. Equipment record
99
What is the use of dowel in assembly technique?
Answer
A. Accurate positioning of two or more parts
100
What is the name of activity carried out to prevent the breakdown of machinery in basic
maintenance?
Answer
B. Preventive maintenance
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