NCL Technician Fitter Trainee Previous Question Paper

NCL Technician Fitter Trainee Previous Question Paper | NCL Technician Fitter Trainee Previous Year Question Paper

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NCL Technician Fitter Trainee exam held for 100 Marks, 70 marks are given for Technical Subjects, and 30 Marks for General Subjects. Only objective type questions are asked with no negative marking and the maximum duration of the test is 90 Minutes.

Essential Qualifying Marks for the UR, EWS candidates is 50 Marks, and 40 Marks for the Reserved Category with PwBD, ESM.

NCL Fitter Trainee Previous Year Paper 2020

S. No. Questions
1. Type of reamer used for reaming operation in blind hole?

A)   Straight fluted reamer

B)   Left hand spiral fluted reamer

C)   Right hand spiral fluted reamer

D)   None of the above

2. Which of the following is an artificial abrasive?

A) Aluminium oxide    B) Emery

C) Diamond             D) Corundum

3. At room temperature, plain carbon steel contains:

A)   Ferrite and cementite

B)   Ferrite and pearlite

C)   Pearlite and cementite

D)   Ferrite, pearlite and cementite

4. Dressing of grinding wheel refers to:

A)          Restoring of cutting action of wheel

B)           Shaping of the wheel

C)           Making wheel concentric with axis

D)          Changing the wheel

5. Galvanized iron refers to iron coated with:

A) Tin                    B) Zinc

C) Chromium        D) Germanium

6. The shape of rasp cut file is:

A) Triangular       B) Flat

C) Half round      D) Round

7. A standard Hacksaw blade of 300 m length has 375 teeth. What is the classification and type of set of blade?

A)          Medium, wave set

B)          Medium, staggered set

C)          Fine, staggered set

D)          Fine, wave set

8. A fit designed as 30H7/g6 is a :

A) Clearance fit        B) Transition fit

C) Interference fit    D) Tolerance fit

9. Narrow and thin part of the file which is connected to the handle is known as:

A) Tip                      B) Point

C) Edge                    D) Tang

10. One degree equals to:

A) 60 seconds           B)60 minutes

C) 100 seconds         D) 100 minutes

11. Two trains of equal length are running on parallel lines in the same direction at 46 km/ hr and 36 km/ hr. The faster train passes the slower train in 36 seconds. The length of each train is:

A) 72 m                   B) 80 m

C) 36 m                  D) 50 m

12. What is the average of first 95 natural numbers?

A) 50                   B) 48

C) 49                    D) 51

13. An ore contains 25 % of an alloy that has 90 % iron. Other than this, in the remaining 75% of the ore, there is no iron. How many kilograms of the ore are needed to obtain 60 kg of pure iron?

A) 250.67 kg        B) 270.6 kg

C) 266.6 kg          D) 300 kg

14. A towel when bleached was found to have lost 20% of its length and 10 % of its breadth. The percentage of decrease in the area is:

A) 28%                B) 10 %

C) 20 %               D) 22 %

15. A man walked diagonally across a square ground. Approximately, what was the percentage saved by not walking along the edges?

A) 20%               B) 15 %

C) 30 %               D) 12 %

16. If the length of diagonal of a square is 20 cm, then its perimeter is:

A) 141.4 cm        B) 56.56 cm

C) 28.28 cm         D) 40 cm

17. First tap, second tap, third tap differ in their:

A) Thread size     B) Tape lead

C) Thread pitch   D) Type of thread

18. If the perimeter of a right-angled isosceles triangle is (4√2+4) cm, then length of hypotenuse is?

A) 4 cm                B) 5 cm

C) 6 cm                D) 2√2 cm

19. In a drill bit angle between chisel edge and cutting lip is known as :

A) Lip angle        B) Rake angle

C) Web angle       D) Helix angle

20. For a power hacksaw blade, pitch means:

A)  Number of teeth per 10 mm

B)  Number of teeth per 20 mm

C)  Number of teeth per 10 cm

D)  Number of teeth per inch

21. Shaping of grinding wheel to make it run concentric with axis is called:

A) Dressing         B) Truing

C) Balancing        D) Glazing

22. What is the function of part “Pilot” provided in the reamers?

A)          Finish concentric holes

B)          Removing chips

C)                                                                Hold in tap wrench      D)Hold in machine spindle

23. A left hand screw advances in which rotation:

A) Clockwise        B)Anticlockwise

C)Any direction    D) None of above

24. A drift is used for :

A)  Drawing drill location

B)  Removing broken drill from work

C)  Removing the drill from machine spindle

D)  Fixing chuck on machine spindle

25. The process of beveling the end of hole is called:

A) Counter boring        B) Reaming

C) Spot facing      D) Counter sinking

26. Cyaniding and Nitriding are two methods of :

A) Hardening       B) Case Hardening

C) Tempering       D) Normalizing

27. The rolling contact bearing are known as:

A)    Thick lubricated bearing

B)    Plastic bearings

C)    Thin lubricated bearings

D)    Antifriction bearings

28. Gun metal is an alloy of :

A) Copper, Tin and Zinc       B) Copper, lead and Zinc C)Lead, Zinc, Nickel     D) Tin, Zinc, Nickel

29. Purpose of die nut is to :

A)  Cutting new thread

B)  Improve surface finishing of thread

C)  Chasing and conditioning damage thread

D)  None of the above

30. Thread plug gauges are used to check :

A) External thread       B) Internal thread

C) Shaft                D) Hole

31. What is the tap size for an internal thread of M12 with 1.75?

A) 10 mm            B) 13.75 mm

C)10.25 mm        D) 12 mm

32. A NO-GO plus gauge is used to check which of the following?

A) Lower limit of hole B)Upper limit of hole

C) Tolerance          D) Deviation

33. The cutting fluid used while cutting aluminium is:

A) Air jet               B) Ethanol

C)Kerosene           D) Water

34. The vernier scale of calliper has 50 divisions which coincide with 49 main scale divisions. If each main scale division is of 0.5 mm, then the least count of the vernier is:

A)0.1 mm           B) 1 mm

C) 0.01 mm         D) 10 mm

35. Which of the following is an example of indirect angle measuring tool:

A)Bevel protractor      B) Bevel gauge

C) Combination set     D) Marking table

36. Which of the following parts in file is not hardened and tempered?

A)Heel                 B) Edge

C) Body              D) Tang

37. The range of surface finish value Ra Roughness Grade Number N6 is :

A)25 µm             B) 8 µm

C) 0.8 µm            D) 0.1 µm

38. An oily floor should be cleaned by which of the following for safety point of view?

A)  Cotton waste

B)  Putting water

C)  Putting saw dust or sand

D)  Spraying carbon dioxide

39. Tool chatter is caused by which reason?

A)  Small clearance angle

B)  Excessive clearance angle

C)  Small rake angle

D)  Excessive rake angle

40. What is the angle of prick punch used for witness mark?

A)90 degree         B) 60 degree

C) 30 degree        D) 20 degree

41. An observer 1.6 m tall is 20√3 away from a tower. If angle of elevation from his eye to the top of tower is 300. The heights of the tower is:

A)21.6 m             B) 23.2 m

C) 24.72 m          D) 20.3 m

42. If a tiger is 50 of its own leaps behind a deer. The tiger takes 5 leaps per minutes to deer’s 4. If the tiger and deer cover 8 m and 5 m per leap respectively, what distance will the tiger have to run before it catches the deer?

A)600 m             B) 800 m

C) 700 m             D) 1000 m

43. The angle of elevation of the top of the tower standing on horizontal plane from point A is α. After walking a distance ‘d’ towards the foot of the tower, the angle of inclination found to be β. The height of the tower is:

A) d/ (Cot α + Cot β)       B) d/ (Cot α – Cot β) C)d/ (tan α – Cot β)                      D) d/ (tan α + Cot β)

44. The included angle between flanks of metric thread is:

A)450                     B) 600

C) 900                    D) 850

45. From the top of a hill 100 m high, the angles of depression of top and bottom of a pole are 300 and 600 respectively. What is the height of the pole?

A)50 m                 B) 52 m

C) 66.67 m           D) 33.33 m

46. Which of the following is not a tool?

A)Curved file       B) Hand file

C) Flat file            D) Box file

47. The size of an engineer’s vice is specified according to which of the following?

A)  Length of the movable jaw

B)  Width of jaws

C)  Height of vice

D)  Maximum opening of jaw

48. Which of the following device is used to pull heavy loads along the ground?

A)Cranes and sling       B)Winches

C)Layers and rollers     D) All of these

49. Which of  the following cannot be used for taper turning?

A)  Compound rest method

B)  Form tool

C)  Tail stock offset method

D)  None of these

50. If tan2 α= 1-e2, then the value of sec α + tan3 α. Cosec α is :

A)(2- e2)1/2             B) (2+e2)1/2

C) (2+e2)2              D) (2- e2)3/2

51. Typical locating device used as jigs and fixtures for cylindrical job is :

A)Drill jigs           B) Mandrels

C) V-Block          D) Angle plate

52. Three measuring jars have the capabilities of 15 ml, 50 ml and 30 ml. what is the least capacity which can be perfectly measured by any of the measuring jars?

A)100                  B) 75

C) 150                  D) 450

53. A hall is 15 m long and 12 m broad. If the sum of areas of the floor and ceiling is equal to the sum of areas of four walls, the volume of the hall is in m3 is: A)720    B) 1200

C) 900                  D) 840

54. What is the weight of water contained in a conical vessel which is 21 cm deep and 16 cm in diameter?

A)1.246 kg          B) 2.480 kg

C) 3.875kg           D) 1.408 kg

55. A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical ball. The diameter of two of these are 1.5 cm and 2 cm. what is the diameter of third ball:

A)2.5 cm              B) 3.6 cm

C) 1.2 cm              D) 0.9 cm

56. The dimensions of a cuboid are 7 cm, 11 cm, 13 cm. The total surface area is:

A)311 cm2             B) 622 cm2

C) 430 cm2            D) 1002 cm2

57. What is the SI unit of temperature ?

A)Celsius             B) Kelvin

C) Fahrenheit       D) All of these

58. High carbon steels are machined using tools having:

A)  Negative Rake angle

B)  Small Positive rake angle

C)  Large Positive rake angle

D)  Zero rake angle

59. If the cutting speed is 20 m/ min, what is the rotational speed required for a 20 mm drill bit?

A)120 rpm           B) 320 rpm

C) 400 rpm          D) 160 rpm

60. The point angle in general purpose drill bit is:

A)108 degree       B) 90 degree

C) 118 degree       D) 60 degree

61. In a grinding wheel     51A 46 L 13 B, 13 & B represent respectively:

A)          Dense type structure and resinoid Bond type

B)          Soft type structure and resinoid abrasive material

C)          Soft type structure and resinoid Bond type

D)          Dense type structure and vitrified Bond type

62. Morse standard taper is available in numbers from:

A)1 to 7               B) 1 to 8

C) 0 to 7               D) 0 to 8

63. Included angle between flanks of Acme thread is:

A)60 degree         B) 90 degree

C)45 degree        D) 29 degree

64. The dimension of a nut is expressed in terms of:

A)  Head of the bolt

B)  Core diameter of bolt

C)  Nominal diameter of bolt

D)  Pitch diameter of bolt

65. The half included angle of Morse standard taper is:

A)3 degree 15’     B) 3 degree

C) 3 degree 55’     D) 1 degree 29’

66. Which statement is correct about GC 20 A 7 EP Grinding wheel?

A)  Abrasive material used is mixture of A and WA

B)  Grade is soft, Grit size is not fine and abrasive is green silicon carbide

C)  Grade is soft, bond type is metal and abrasive is green carbide

D)  Grade is hard, Grit size is not fine and abrasive is black silicon carbide

67. Which of the following is used for holding pipe of diameter more than 63 mm and up to 200 mm?

A)Pipe Wrench    B) Pipe Vice

C) Chain Pipe Vice      D) All of above

68. 45 degree is equal to how many radian: A)0.785                            B) 1.57

C) 6.28                 D) 1.05

69. Lathe beds are made of cast iron due to following reason :

A)  It is heavy

B)  It is cheap

C)  High damping capacity

D)  It does not resist compressive load

70. How many cubic feet in 12 cubic meter (approximately)?

A)424                  B) 464

C) 536                  D) 572

 

Answers –

1 2 3 4 5 6 7 8 9 10
C A C A B C D A D B
11 12 13 14 15 16 17 18 19 20
D B C A C B B A C D
21 22 23 24 25 26 27 28 29 30
B A B C D B D A C B
31 32 33 34 35 36 37 38 39 40
C B C C B D C C B B
41 42 43 44 45 46 47 48 49 50
A B B C C D B B D D
51 52 53 54 55 56 57 58 59 60
C C B D A B D A B C
61 62 63 64 65 66 67 68 69 70
A C D C D B C A C A

 


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