| Post Name | JR. INSTRUCTOR MECHANICAL AGRICULTURAL MACHINERY(SC/ST &ST Only) - IT |
|---|---|
| Question Paper Code | 063/2021 |
| Category Code | 300/2018 |
| Date of Test | 22 July 2021 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
As per the provision of the Factories Act, every accident is to be reported to the
Inspector within
Answer
C. 24 hours
2
Which one of the following is a finishing process ?
Answer
A. Sintering
3
The system used for mass production of identical parts within specified limits of sizes
for selection of components at random is known as
Answer
D. Inter changeable system
4
The most abundantly used material in industry is
Answer
B. Mild steel
5
Grey cast iron gives grey fracture due to the
Answer
B. Graphite
6
Bearing materials should possess
Answer
A. High compressive strength
7
Accuracy of a measuring instrument is
Answer
D. The closest reading to its true size
8
A metric vernier caliper is having 25 divisions on vernier scale. These 25 divisions
match with 24 divisions of main scale. If one main scale division = 0.5 mm, the least
count of the vernier caliper is
Answer
C. 0.02 mm
9
Hammers are usually made of
Answer
D. High carbon steel
10
For filing brass or bronze pieces, the following type of file is preferred
Answer
A. Coarse cut or rough cut file
11
Which type of chisel used for chipping sharp corners ?
Answer
C. Diamond-point chisel
12
Fullers are used for
Answer
B. Forming necks or grooves on cross section of a job
13
Hand shears can be used for cutting sheets upto
Answer
C. 0.8 mm
14
Stainless steel sheets contain
Answer
B. 18% chromium and 8% nickel
15
Which instrument is used for laying out larger arcs, circles and various geometrical
shapes ?
Answer
A. Trammel
16
Flux is used soldering to
Answer
D. Prevent formation of oxides
17
The working temperature range for soldering process is
Answer
B. 180°C to 250°C
18
During the resistance welding process, the pressure is released
Answer
C. After the weld cools
19
In an arc-welding process, intense heat is developed between the electrode and
work piece due to
Answer
A. Contact resistance
20
The commonly used flux for ferrous materials is
Answer
A. Borax
21
In galvanised pipes, galvanising is done on the following material
Answer
D. Wrought iron
22
A material that is to be extruded must possess the following property
Answer
B. Plasticity
23
Diesel engine burns fuel of _______ volatility.
Answer
A. Low
24
Which process is called scavenging ?
Answer
D. The mixture flows down and pushes the burnt gas out
25
Which of the engine has maximum fuel efficiency ?
Answer
B. Radial engine
26
The compression ratio is expressed in
Vs � Vc Vc
Answer
A. �R �
27
The heating of gas at constant ______ is governed by Boyle’s law.
Answer
D. Temperature
28
In cylinder block piston liners are sealed with the water jacket by
Answer
B. O ring
29
Valve clearance is adjusted when both the valves are in
Answer
C. Close position
30
Final drive is provided on tractors
Answer
C. To increase torque
31
The thermal efficiency of diesel engine varies between
Answer
D. 32 to 38 per cent
32
The velocity required to operate windmill is more than
Answer
A. 10 kmph
33
The low speed engine runs at speed of
Answer
B. Less than 350 rpm
34
The firing interval of 2-stroke, two-cylinder engine is
Answer
A. 360°
35
The compression rings mounted on piston are generally made of
Answer
C. Chromium
36
The firing order of 4-stroke, 6-cylinder engine is
Answer
B. 1-5-3-6-2-4
37
The cross sectional area of one cylinder of an engine multiplied by its stroke is
Answer
D. Swept volume
38
The gasket sealing is most difficult problem at
Answer
C. Head
39
The fluctuation of engine speed during a cycle depends upon
Answer
A. Mass of fly wheel
40
The major loss in a C.I. engine is
Answer
D. Loss due to incomplete combustion
41
The thermostat valve are designed to start opening at
Answer
C. 70°C to 75°C
42
Worm gear is the part of
Answer
B. Steering gear box
43
Too much belt tension produces
Answer
A. Whirling sound
44
Worn out cam lobs will lead to
Answer
D. Decreasing volumetric efficiency
45
Which of the following bearings can take both radial and thrust load ?
Answer
A. Ball bearing
46
The multiplate clutches are not used in
Answer
B. Car
47
Clutch grab is
Answer
D. Abrupt engagement of the clutch
48
The device for smoothening out the power is
Answer
A. Fly wheel
49
The combined lubrication system is the combination of
Answer
C. Splash type lubrication system and pressure lubrication
50
Specific gravity of a fully charged battery is
Answer
B. 1.280
51
P.T.O. shaft gets drive from
Answer
D. All are correct
52
A gear used in the tractor hydraulic system normally is
Answer
C. Spur type
53
Maximum noise level from a tractor near the operator’s ear should not exceed
Answer
C. 90 dB
54
Vibration is measured by
Answer
A. Accelerometer
55
Angle between centre line of tyre and vertical line is called
Answer
D. Camber angle
56
Cage wheel is used in tractor for the
Answer
B. Improving traction
57
Weight transfer of tractor is directly affected by
Answer
C. Both
58
The PTO HP of a tractor is
Answer
D. More than draw bar HP
59
The depth of cultivation limited to
Answer
B. 4 to 5 cm
60
Finer operation performed for seedbed preparation is
Answer
D. Secondary tillage
61
Jointer and coulter are the parts of
Answer
A. MB Plough
62
The stubble type of mould board is mostly suitable for
Answer
C. Grassy land
63
A wheel used for maintaining uniform depth of ploughing in different soil is
Answer
C. Gauge wheel
64
A point at which the resultant of all horizontal and vertical forces acts is
Answer
B. Centre of resistance
65
The vertical clearance of MB plough ranges from
Answer
A. 3 to 5 mm
66
Tilt angle of standard disc plough varies from
Answer
D. 15° – 25°
67
In disc harrow, a device used to provide a distance between two disc mounted on
same gang axel is
Answer
B. Spool
68
A harrow which based on a principle that side thrust against the front gang is opposed
by side thrust of rear gang
Answer
C. Offset disc harrow
69
A special type of harrow with curved knives is
Answer
B. Acme harrow
70
A subsoiler is used to break a hard pan of soil upto a depth of
Answer
D. 100 cm
71
The disc force is made into the ground by
Answer
A. Weight
72
Which of the following is not a part of laser leveller ?
Answer
C. Terracer
73
The random scattering of seed on the surface of seedbed is
Answer
A. Broadcasting
74
The most positive seed metering mechanism used in seed-drill is
Answer
D. Fluted roller type
75
Which of the following is not a seed metering mechanism ?
Answer
B. Star wheel
76
The metering mechanism used in potato planter is
Answer
C. Picker wheel type
77
How much area will be covered by a 3 row-20 cm size seed-drill in one hour ? The
forwarding speed of the machine is 3 km/h and working efficiency is 90%.
Answer
B. 0.162 ha/h
78
Pressure of power operated sprayers ranges from
Answer
D. 20 to 55 kg/cm2
79
The pump used in most of the hydraulic sprayer is
Answer
A. Positive displacement pump
80
The nozzle used for herbicide and fungicide application is
Answer
C. Hollow con type
81
A machine used for cutting of cereal crops is
Answer
B. Reaper
82
Cutter bar of reaper is made of
Answer
D. High grade steel
83
When knife and pitman run in a straight line, then the cutter bar is in
Answer
A. Proper alignment
84
The action involved in harvesting of crop is
Answer
D. All are correct
85
The cutter bar used in cutting unit of combine is
Answer
B. Mower type
86
A thresher causes more seed damage if
Answer
D. Speed is increased
87
Threshing in rotating drum cylinder is due to
Answer
A. Impact
88
The process of separation of grain from a mixture of grain and chaff is
Answer
D. Winnowing
89
The equipment that has no driven/moving components is
Answer
B. Implement
90
The ratio of reel peripheral speed to forward speed of combine is termed as
Answer
C. Reel index
91
A windmill suitable for water lifting is
Answer
B. Multiple blade type
92
The process of removing husk and bran of the paddy in one operation is called
Answer
A. Hulling
93
L.S.U. drier is
Answer
D. Continuous flow mixing type drier
94
In hammer mill, the force applied on grains is
Answer
C. Impact and shear
95
The maximum suction head should not be more than
Answer
C. 7.5 m
96
__________ is used to extract the juice from sugarcane.
Answer
B. Crushing
97
Which one of the following give DC supply ?
Answer
A. Dynamo
98
What does a capacitor store ?
Answer
D. Charge
99
A motor with an insulated rotor winding is called
Answer
B. Slip ring motor
100
A transformer consist of
Answer
B. Two coil
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