| Post Name | Junior Instructor Mechanic Agricultural Machinery - Industrial Training |
|---|---|
| Question Paper Code | 007/2025/OL |
| Category Code | 643/2023 |
| Date of Test | 23 January 2025 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Shape and colour of the warning signs are
Answer
A. Triangular shape, black boarder and symbol on yellow background
2
Which one of the following ļ¬re extinguishers should not be used for class B ļ¬re ?
Answer
D. Water ļ¬lled extinguisher
3
Which one of the following is wrong about the testing of lifting equipment ?
Answer
B. The lifting equipment should be calibrated once in two year
4
In the case of good safety practice 1. Clean your body with compressed air. 2. Leave the machine after it will stop.
Answer
C. 1 wrong, 2 right
5
______________ is a marking media used on machine ļ¬nished surface, it take more time to drying than other marking media but gives very clear line.
Answer
D. Prussian blue
6
Which portion of the hammer head is left soft ?
Answer
A. Cheek
7
Which one of the following is used as the datum surface, while in the marking process ?
Answer
C. Surface plate
8
The pliers used for cutting oļ¬ wire close to the surface level is
Answer
B. Side cutting pliers
9
The size of bench vice is stated by
Answer
A. Width of jaw
10
In the case of a micrometer 1. Micrometer is a precision measuring instrument. 2. Pitch of the micrometer thread is 1 mm. 3. Maximum length of measurement with an outside micrometer is 25 mm. 4. Inside micrometer have a ratchet stop to ensure uniform pressure between measuring faces.
Answer
C. 1 and 3 are right, 2 and 4 are wrong
11
The BIS set 4 of feeler gauge have 13 blades in the range of
Answer
B. 0.03 mm to 0.5 mm
12
About a metric vernier caliper 1. It can be used to take outside, inside and depth measurement. 2. Least count is 0.02". 3. Least count is equal to 1 vernier scale division -1 main scale division. 4. Reading is taken by, multiply least count with vernier scale reading and add it to main scale reading.
Answer
C. 1 and 4 are right, 2 and 3 are wrong
13
In the case of a depth micrometer 1. The direction of main scale is opposite to an outside micrometer. 2. For diļ¬erent range measurements diļ¬erent extension rods are used. 3. The measurements are taken between stock and spindle.
Answer
D. All are right
14
Which of the following are used to prevent pulleys from slipping on shafts, positioning and holding collars in place, on shafts and holding shafts in place in assemblies ?
Answer
B. Set screws
15
Which ļ¬les are used for die-sinking, engraving and in silver smith's work ?
Answer
D. Riļ¬er ļ¬les
16
It is the algebraic diļ¬erence between a size, to its corresponding basic size, it may be positive, negative or Zero, what ?
Answer
C. Deviations
17
Which tool is using for installing and removing circlips ?
Answer
A. Circlip pliers
18
Which material is very suitable for making Box nut of Bench vice ?
Answer
C. Phosphor Bronze
19
The _____________ of a drill bit is the angle formed between the leading edge of the spiral (Flute) and the axis of the drill bit.
Answer
D. Helix angle
20
Which of the following is not a Lapping Abrasive Particle ?
Answer
C. AlāOā
21
Which work holding device is suitable for grinding Large or irregularly shaped parts ?
Answer
B. Faceplate or T-slot Table
22
What is the "oversize" for calculate drill size for reaming ?
Answer
B. 0.05 mm
23
What is the appearance of cold rolled M.S. Sheet ?
Answer
B. Plain silver white
24
What is the other name of knocked up seam ?
Answer
C. Bottom double seam
25
Which solder is used for soldering brass, copper and jewellery ?
Answer
D. Extra ļ¬ne solder
26
Which type of ļ¬uxes are acidic and chemically active ?
Answer
A. Inorganic ļ¬uxes
27
What is the capacitance value of a capacitor that requires coulomb to charge to 35 volt ?
Answer
A. 0.014 F
28
Four resistors Rā = 100 Ī©, Rā = 200 Ī©, Rā = 300 Ī© and Rā = 400 Ī© in a series circuit are connected across 50 V. What is the voltage drop across the resistance Rā?
Answer
B. 10 volt
29
What is the unit for Quantity of electricity ?
Answer
B. Ampere-second
30
What is the value of resistance of the resistor if the colour coding is Orange, Red and Silver ?
Answer
B. 3300 Ā± 10% Ohm
31
Calculate the hot resistance of 200W/250V rated lamp.
Answer
C. 312.5Ī©
32
What is the current carrying capacity of 32Amp. rated cable, if it is protected by the rewireable fuse ?
Answer
C. 26 Amp
33
What is the internal resistance of a discharged battery ?
Answer
A. High
34
Three resistances (= 6Ī©), and (= 3Ī©) in a parallel circuit connected across 24 Volt, draws a total current 15 Ampere, what is the resistance value of ?
Answer
C. 6 Ī©
35
In a house, 5 Nos. of 40 W Tube Lights, 4 Nos. of 80 W fans, 1 No. of 120 W T.V. receiver and 4 Nos. of 60 W lamps are used for 5, 8, 5 and 4 hours/day respectively. Calculate the total energy consumed in unit's per day.
Answer
A. 5.24 unit
36
What happens to the resistance of LDR, if the intensity of light is increased ?
Answer
B. Decreases
37
What is the output voltage of lithium cell ?
Answer
D. 2.5 V
38
Which device converts sunlight into electrical energy ?
Answer
A. Photo voltaic cell
39
How the capacity of batteries is speciļ¬ed ?
Answer
D. Ampere hour
40
The maximum reverse voltage that can be applied to the diode without destruction is
Answer
A. Peak inverse voltage
41
The ratio of dc collector current to dc base current is called
Answer
B. dc beta
42
In UJT the intrinsic stand-oļ¬ ratio is the property of the UJT is always
Answer
C. Less than Unity
43
According to Boolean algebra, the AND gate performs
Answer
B. Logical multiplication
44
Which one of the following is an electric arc welding process ?
Answer
C. Electro slag welding
45
Which type of material used for making ARC welding electrode holder and earth clamp ?
Answer
C. Copper and its alloy
46
Which of the following is not true about AC welding transformer ?
Answer
B. Suitable for easy welding of non ferrous metals
47
Which type of ļ¬ux coated electrodes is most suitable for welding high strength steel without cracks ?
Answer
D. Basic coated electrodes
48
Which one of the following is the power source of a pneumatic system ?
Answer
B. Compressor
49
Which of the following statement is/are correct about viscosity of a liquid ? i. It indicates the resistance to ļ¬ow. ii. Viscosity decreases as temperature increases. iii. Viscosity decreases as temperature decreases.
Answer
A. Only i and ii
50
The rate of change of viscosity between two temperature is called
Answer
C. Viscosity index
51
What is the working principle of a hydraulic jack ?
Answer
D. Pascal's law
52
Which of the following statement is/are correct about a diesel engine ? i. It is called as constant pressure cycle engine. ii. It is called as constant volume cycle. iii. It is a compression ignition engine.
Answer
A. Only i and iii
53
Distance between Center of the crank pin to the Centre of the main journal of a crank shaft is known as
Answer
A. Throw
54
Which of the following statement is/are correct about piston pin arrangement of an IC engine ? i. Full ļ¬oating type arrangement is used in modern IC engines. ii. Gudgeon pin is used to connect piston to connecting rod. iii. Bush bearing is provided in piston pin boss in full ļ¬oating type arrangement.
Answer
C. Only i and ii
55
What is the term used to refer to the valve timing of an IC eingine, when a valve closes after BDC ?
Answer
D. Lag
56
Which of the following statement is/are correct about the property of lubricant used in an IC engine lubrication system ? i. Boiling temperature should be low. ii. It should develop foam during working. iii. Oil viscosity should not be same in hot and cold condition of the engine. iv. Oil viscosity should be suit all the operating conditions.
Answer
A. Only iv
57
Where the thermostat valve is provided in a pressurised cooling system of an IC engine ?
Answer
B. Coolant outlet of cylinder head
58
Which of the following statement is/are correct about the Turbo chargers used in an IC engine ? i. Power and eļ¬ciency can be increased by using turbochargers. ii. Turbo chargers are driven by belt/chain through crankshaft or cam shaft pulley. iii. There is a chance of Turbo lag while using Turbocharger.
Answer
B. Only i and iii
59
Where the positive crank case ventilation ļ¬tted in an engine ?
Answer
D. Engine breather and air cleaner
60
What is the purpose of Exhaust Gas Recirculation system in an IC engine ?
Answer
D. To reduce Nitrogen Oxides (NOx) emissions
61
What is the use of catalytic converters ?
Answer
C. Control the emission
62
What is the primary function of a carburetor in an engine ?
Answer
B. Mix air and fuel for combustion
63
What is the purpose of the fuel injection pump in a diesel engine ?
Answer
B. Pressurize fuel for injection
64
What is the function of the clutch in a vehicle ?
Answer
B. Transfer power from engine to transmission
65
What is the primary function of hydraulic steering ?
Answer
B. Provide smoother steering control
66
What is the importance of maintaining correct tire pressure ?
Answer
D. All of the above
67
What is a potential danger of overloading tractor equipment ?
Answer
C. Shortened lifespan of implements
68
The speed of camshaft in relation to crankshaft of an IC engine is
Answer
B. Half
69
The size of the gear is usually speciļ¬ed by
Answer
D. Pitch circle diameter
70
Gears are used for
Answer
D. All of the above
71
Lewis formula is used for
Answer
C. Gears
72
Which plough is used for breaking hard soil layers ?
Answer
B. Subsoiler
73
What maintenance is recommended for tillage equipment ?
Answer
A. Daily and periodic maintenance
74
What is a key function of a rotavator ?
Answer
C. Pulverize soil
75
What distinguishes disc harrows from drag harrows ?
Answer
B. Disc harrows cut and mix soil, drag harrows smooth it
76
Which of the following adjustments is crucial for safe harrow operation ?
Answer
A. Hitching height
77
What is a common problem in harrow operation ?
Answer
B. Uneven soil mixing
78
What are shovels and sweeps used for in cultivators ?
Answer
C. Weed removal and soil aeration
79
Which equipment is used for forming bunds ?
Answer
D. Bund former
80
What distinguishes a laser leveler from a conventional leveler ?
Answer
A. Precision leveling
81
Why is trouble shooting important for farm implements ?
Answer
D. All of the above
82
A device placed over riser valve outlets as a means of connecting portable gated pipes to the pipeline is known as
Answer
C. Hydrant
83
The pressure drop permitted between two ends of a lateral in a drip irrigation system is
Answer
C. 10%
84
When selecting a sprinkler system, it is important to ensure that the average application rate is ____________ the basic inļ¬ltration rate of the soil.
Answer
A. less than
85
__________ is the part of a cone spray nozzle that imparts rotation to the liquid passing through it.
Answer
C. swirl plate
86
The lead adjustment provided to the outer end of the cutter bar, when the mower is not in operation is
Answer
B. 2 cm per meter of cutter bar
87
_____________ starter is used in high rating 3 phase motors.
Answer
D. Star-Delta
88
The power operated chaļ¬ cutters are operated in the working speed range of
Answer
D. 600 ā 1000 rpm
89
If a hammer mill is operated at recommended speed, its capacity depends on : i. rate of feeding. ii. hardness of feed to be ground. iii. size of screen opening.
Answer
D. i, ii and iii
90
The spray droplet diameter that divides the volume of spray into two equal parts is deļ¬ned as
Answer
B. Volume median diameter
91
The function of the star wheel in a vertical conveyor reaper is to
Answer
C. guide the crop to the cutter bar
92
A ____________ pump causes a ļ¬uid to move by trapping a ļ¬xed amount of ļ¬uid and then forcing the trapped volume of ļ¬uid into the discharge pipe.
Answer
A. Positive displacement
93
Threshing can be accomplished by
Answer
D. All of the above
94
A single disc type furrow opener is suitable for
Answer
D. all of the above
95
The normal ratio of peripheral speed to forward speed in a combine harvester is in the range
Answer
B. 1.25 to 1.50
96
The free threshed grain carried over the rack in the straw and discharged from the combine harvester is called
Answer
B. Rack loss
97
____________ are the cutting element used for cutting in ļ¬ail mowers.
Answer
C. swinging knives
98
Size reduction of grains occurs by impact in a
Answer
B. Hammer mill
99
In a volute pump, the casing is proportioned to gradually ___________ the velocity of the liquid as it ļ¬ows from the impeller to the discharge.
Answer
B. Reduce
100
Grading of seeds is done to obtain good quality seeds with higher i. germination. ii. viability.
Answer
C. i and ii
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