| Post Name | OPERATOR GRADE III - APEX SOCIETIES OF CO- OPERATIVE SECTOR & MATSYAFED |
|---|---|
| Question Paper Code | 011/2022 |
| Category Code | 241/2020 |
| Date of Test | 12 March 2022 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
An Oily Floor Should be cleaned by?
Answer
C. Putting Sawdust
2
What are the three factors causes Fire?
Answer
D. Fuel, Heat, Oxygen
3
While Grinding operation are to be carried out, Operator must wear?
Answer
B. Safety Goggles
4
Colour code of Bins used in Workshop for segregation Paper is :
Answer
A. Blue
5
What is the Class of Fire caused by Wood, Paper, Cloth?
Answer
C. Class βAβ FIRE
6
Flammable liquid fire occurs, Which type Fire Extinguishers are most suitable :
Answer
B. Form type Extinguishers
7
What βAβ denotes in ABC of FIRST AID?
Answer
C. Air way
8
In Method of Waste Disposal, the Process involves breaking down the materials into organic
compounds that can be used as manure is :
Answer
A. Composing
9
In Industry which one is not used for shifting/moving Heavy Equipment :
Answer
C. Conveyors
10
The word means freedom or protection from harm, danger, hazard, risk, accident, injury or
Damage is :
Answer
D. Safety
11
The basic unit of Length in SI System is :
Answer
A. Metre
12
1ο means how much Millimetre :
Answer
D. 0.001 mm
13
Scribers are made out of which Material :
Answer
B. High Carbon steel
14
The angle of the prick punch which is used for making light punch marks needed to position
dividers are?
Answer
C. 30 degree
15
Which precision measuring instrument is used for checking and setting of angles?
Answer
D. Sine bar
16
The Vernier bevel protractor is a precision instrument meant for measuring angles to an
accuracy of :
Answer
A. 5 minutes
17
The Name of the part of Vernier Height gauge, in which the main scales are graduated and
various attachments may be clamped :
Answer
C. Beam
18
In industry/Workshop which grade Slip Gauge is used for inspection purposes?
Answer
A. Grade β0β accuracy
19
For Corrosion Protection and maintain surface fish clean the slips with carbon tetrachloride
and apply :
Answer
C. Petroleum Jelly
20
The least count of Micrometer is :
Answer
B. 0.01 mm
21
Files are generally used for metal removing purpose, Which of the following statement is/are
true about the constructional features of a Hand File :
I. It is rectangular in cross section
II. Its edges are parallel around 66% of its length
III. One edge is uncut
IV. One face is uncut
Answer
C. I and III
22
Which one of the following hammer is used for nail pulling action?
Answer
B. Claw Hammer
23
Which one of the fallowing file is used for removing metal from a V shaped groove with an
included angle of 50 degree?
Answer
D. Knife edge File
A 5 011/2022
24
Flute is the part of a drill bit, Which of the following statement is/are correct about flutes :
I. Flutes helps to form the cutting edges
II. Flutes helps for chip removal process
III. Flutes helps for coolant flow
IV. Flutes Helps for improving strength of drill
Answer
C. I, II and III
25
Which one of the material is generally used for making surface plates?
Answer
A. Grey cast iron
26
What is the Use of a Die Nut (Solid Die)?
Answer
D. For Reconditioning Damaged threads
27
Which one of the following is a commercially available marking media with various colours
and quick dry action?
Answer
A. Cellulose lacquer
28
Vices are used for holding workpieces for various operations, which of the following Vice has
only a Line contact occurs between work and jaw plate instead of surface contact?
Answer
B. Leg Vice
29
Which type of limit gauge is suitable for checking the width of a rectangular prism?
Answer
D. Snap gauge
30
Eye hole is part of hammer, What is the shape of an Eye hole?
Answer
D. It is an oval shaped tapered hole with an increase in diameter from centre
towards its ends
011/2022 6 A
31
Which one of the following metal has the lowest melting point?
Answer
A. High carbon steel
32
Which one of the following is a property of metal which fails under the action of constant
tensile load at elevated temperature?
Answer
D. Creep
33
Which one of the following furnace is used for making Cast iron?
Answer
A. Cupola Furnace
34
Annealing is a Heat treatment process, In annealing what is the heating range of steel
having 0.9% Carbon :
Answer
B. 50 Degree above LCT
35
In arc welding process, which one of the following statement is true in case of straight
polarity?
Answer
A. 66% Heat is generated in work
36
In Fillet weld nomenclature, What you mean by throat thickness?
Answer
B. It is the distance between root of weld to the line joining two toes
37
Which one of the following rivet is used where the projection of the rivet head above the
assembly surface must be avoided?
Answer
C. Countersunk head rivet
38
Which one of the following power source is used in arc welding where electricity is not
available?
Answer
A. Generator set
39
Which one of the following Heat treatment process is used for removing internal stresses
developed due to uneven heating and cooling of metal?
Answer
D. Normalising
40
Which one of the following gas is used for Gas nitriding process?
Answer
A. Ammonia
41
Engines having spark ignition are governed by :
Answer
B. Quantitative Governing
42
In a four stroke engine the working cycle is completed by ββββββ revolutions of crank
shaft :
Answer
B. 2
43
The combustion process in a diesel engine is :
Answer
D. Constant Pressure Process
44
What is the material used for making cam shaft?
Answer
C. Forged Alloy Steel
45
Piston and connecting rod joined by using :
Answer
C. Gudgeon Pin
46
What is the working principle of clutch?
Answer
D. Friction
011/2022 8 A
47
What is the purpose of throttle valve in the carburettor?
Answer
A. Control air fuel mixture into engine
48
Which one of the following is the working cycle of Compression Ignition Engine?
Answer
A. Diesel Cycle
49
What is the compression ratio of petrol engine?
Answer
C. 6 : 1 to 11 : 1
50
Fresh charge in the cylinder of a two stroke engine enters in cylinder by :
Answer
B. Transfer Port
51
Type of drive best suited for minimum distance and for maximum power Transmission is :
Answer
A. Gear drive
52
A key fits into a semi circular key way cut in the shaft is :
Answer
C. Woodruff key
53
Gears used to transmit power at right angles is :
Answer
D. Mitre Gear
54
Example of an anti-friction bearing is :
Answer
B. Ball Bearing
55
Which of the following is an example for pin joint?
Answer
A. Knuckle joint
56
If the bearing pressure (load) is parallel to the axis of the shaft the Bearing is called :
Answer
D. Pivot Bearing
57
Driver and Driven Pulley rotates in opposite direction in :
Answer
B. Cross Belt Drive
58
Bronze is an alloy of :
Answer
C. Copper and Tin
59
The surface above the pitch circle diameter of a gear is called :
Answer
A. Face
60
The mechanism used in lathe for the movement of carriage is :
Answer
C. Rack and Pinion
61
Which one of the following is an example of Drive fit?
Answer
B. H7r6
62
The algebraic difference between a size to its corresponding basic size is known as :
Answer
C. Deviation
63
The axial advancement of a nut on a bolt in one complete revolution is called :
Answer
B. Lead
64
The angle of sellerβs thread is :
Answer
D. 60ο°
65
The combination of right hand and left hand thread is utilised in ββββββ of the
following :
Answer
B. Turn Buckle
66
If the tolerance zones of mating parts overlaps the fit obtained is :
Answer
C. Transition
67
A shaft of basic size 40 mm has its upper and lower deviations of 0.025 mm. Calculate the
tolerance :
Answer
A. 0.05
68
In a triple start thread the lead equals :
Answer
A. three times of the pitch
69
The maximum and minimum sizes of shaft are 35.047 & 35.036 and that of Hole are 35.022
& 35.000 respectively. Calculate the minimum and maximum interferences when they are
assembled :
Answer
B. 0.014 & 0.047
70
As per IS : 919β1963 (revised) BIS recommends ββββββ types of fundamental
deviations and ββββββ grades of tolerances for basic size upto 500 mm :
Answer
D. 27 & 18
71
Electron has a βββββββββββ electric charge :
Answer
B. Negative
72
Unit of electric charge is :
Answer
A. Coulomb
73
Unit of conductance :
Answer
B. Mho
74
Which one is semiconductor material?
Answer
D. Germanium
A 11 011/2022
75
How many electrons are there in the third cell of the copper atom?
Answer
C. 18
76
Full form of EMF is :
Answer
B. Electro Motive Force
77
RMS value =
Answer
B. Vmax Γ 0.707
78
Copper is a/an :
Answer
A. Good conductor
79
An instrument which detect electric current is known as :
Answer
D. Galvanometer
80
Electric pressure is also called :
Answer
C. Voltage
81
Calculate the total power of the circuit of two lamps rated as 200 W/240 V are connected in
series across 240V supply :
Answer
B. 100 W
82
Which law states that in closed electric circuit, the applied voltage is equal to the sum of the
voltage drops?
Answer
D. Kirchhoffβs second law
83
What is the effect of the parallel circuit with one branch opened?
Answer
C. No current will flow in that branch
84
The total resistance in a series circuit is equal to the βββββββββββ of the
individual resistances around the series circuit :
Answer
A. Sum
85
Unit of resistance is :
Answer
A. ohm
86
Resistance of a wire is inversely proportional to its :
Answer
C. cross sectional area
87
If the colour bands on a resistor are in the order Red, Green, Orange and Gold, its resistance value is __________ Ξ©.
Answer
Question Cancelled
88
Which instrument used to measure resistance :
Answer
B. ohm meter
89
Which one of the following material/alloy is the best example of positive temperature
coefficient?
Answer
Question Cancelled
90
Application of series parallel combination is :
Answer
Question Cancelled
91
Which of the following is a non-renewable energy source?
Answer
A. Nuclear
92
Gasoline is a βββββββββββ fuel :
Answer
B. Liquid
93
A generating station which utilizes the potential energy of water at a high level for the
generation of electrical energy is known as :
Answer
B. Hydro power plant
94
βββββββββββ turbines are used for high heads :
Answer
D. Impulse turbines
95
In nuclear power station, heavy elements such as βββββββββββ are subjected to nuclear
fission in a special apparatus known as a reactor :
Answer
A. Uranium
96
Wind energy utilizes :
Answer
B. Kinetic energy of air
97
A solar cell convert light energy into :
Answer
A. Electrical energy
98
Series parallel combination of solar cell is called :
Answer
C. Solar array
99
The main constituent of bio gas is :
Answer
B. Methane
100
Trapped heat inside the earth is known as :
Answer
C. Geothermal energy
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