ITI Mechanic Motor Vehicle 1st Semester Exam Papers

ITI Mechanic Motor Vehicle 1st Semester Exam Papers

The course of Mechanic Motor Vehicle is of 2 years and where there is semester system, its complete study is done in 4 semesters or we can say that it is divided in 4 semesters, so below you are given the question paper of its 1st semester which has been asked earlier in its exam, so solve it carefully and many more question papers related to this trade are given on our website, by solving which you can prepare yourself.

ITI RAC Theory 3rd Semester Exam Papers

1. The specific gravity of a fully charged lead acid battery at 27°C will be ………

•2.173
•1.173
•2.273
•1.273
Answer. 1.273

2. A hacksaw blade is specified by which of the following?

•Length
•Width
•Number of teeth per cm
•All of these
Answer. All of these

3. In arc welding the voltage to start the arc is approximately ……….

•25 – 40 volts
•60 – 100 volts
•50 – 60 volts
•Above 100 volts
Answer. 60 – 100 volts

4. Which chisel is used in knife to make flutes and oil channels?

•Flat chisel
•Round nose chisel
•Cross cut chisel
•Diamond point chisel
Answer. Cross cut chisel

5. Which of the following must a mechanic use when working in dusty environment/using chemicals or spray painting?

•Safety helmet
•Safety shoes
•Mask or respirator
•Sunglasses
Answer. Mask or respirator

6. ……. can be used as a depth gauge.

•External micrometer
•Internal micrometer
•Vernier caliper
•Dial gauge
Answer. Vernier caliper

7. The angle of twist for a twist drill bit will be:

•50°
•59°
•60°
•69°
Answer. 59°

8. In oxy-acetylene gas welding, oxidizing flame is mainly used for which of the following?

•Brass
•Copper
•Aluminum
•Ferrous Answer for metals
. Brass

9. What is the least count of a metric micrometer?

•0.1 mm.
•0.01 mm.
•0.001 mm.
•0.0001 mm.
Answer. 0.01 mm.

10. What is the additional resistance called which is installed in series with the primary coil of the ignition coil to control the flow of current in the primary winding?

•Complementary (ballast) resistance
•Series resistance
•Parallel resistance
•Circuit breaker
Answer. Complementary (ballast) resistance

11. The punching end of a centre punch should be at an angle of …….?

•100°
•90°
•70° to 90°
•90° to 100°
Answer. 70° to 90°

12. The statement that the current flowing in an electric circuit is proportional to the voltage applied in the circuit is known as the Law of ……..

•Ohm
•Faraday
•Fleming
•Mho
Answer. Ohm

13. If the size of the tapered hole is 25 mm and the pitch of the thread is 3 mm, what will be the diameter of the drill bit for drilling before making the thread?

• 25 mm.
• 24 mm.
• 21 mm.
• 20 mm.
Answer. 21 mm.

14. Non-metallic gaskets should not be used for which of the following temperatures?

•250° to
•350° to
•450° to
•550° to
Answer. 450° to

15. The type of sand is decided according to which of the following?

•Length
•Size
•Grade
•Length, size, grade and cut of teeth
Answer. Length, size, grade and cut of teeth

16. Which fire extinguisher is used for electrical fire?

•Carbon tetrachloride fire extinguisher
•Carbon dioxide (CO2) fire extinguisher
•Two-gallon soda foam fire extinguisher
•Methyl bromide fire extinguisher
Answer. Carbon dioxide (CO2) fire extinguisher

17. Where among the following should used oil be disposed of?

•On the top of the hill
•On the beach
•At the garbage dump
•At the recycling center
Answer: At the recycling center

18. Try square is used for which of the following?

•To check the squareness of two adjacent faces of a work
•To check the flatness of a surface
•To draw lines parallel to each other
•All of these
Answer. All of these

19. Single V and single U butt welds are used for which of the following metal sheet thicknesses?

•30 to 40 mm.
•25 to 30 mm.
•15 to 25 mm.
•5 to 15 mm.
Answer. 5 to 15 mm.

20. What type of hammer is used to remove a bent nail from a wooden plank?

•Hyde Face Hammer
•Claw Hammer
•Ball Pan Hammer
•Cross Pan Hammer
Answer. Claw Hammer

21. If ‘d’ is the diameter of a rivet, then the maximum pitch (distance between the centres of two adjacent rivets) for a rivet joint will be calculated as follows?

•2d mm
•(d + 30) mm
•3d mm
•4d mm
Answer. 3d mm

22. Which of the following statements is correct?

•Always hold the tape perpendicular to the job
•Always run the tape forward for 1/4 turn
•Never use oil or water to cool the tape
•While making a thread, the tape should not be pulled out before the thread is completely formed
Answer. Always hold the tape perpendicular to the job

23. What is the active material for the positive plate of lead acid battery?

•Pure lead
•Lead peroxide
•Lead-antimony
•Lead and tin
Answer. Lead peroxide

24. Which safety precaution should a worker follow while using a grinding machine?

•It should be ensured that the stones are moving in a proper manner without any vibrations
•The worker must wear sunglasses
•The tool to be sharpened should be kept at a reasonable distance and should be held by hand
•All of these
Answer. All of these

25. In automobiles, studs are commonly used for which of the following?

•Canker shaft big bearing cap
•Back shaft big end bearing cap
•In tightening cylindrical ends
•None of these
Answer. In tightening cylindrical ends

26. In which fit the shaft diameter is larger than the hole diameter?

•Interference
•Clearance
•Transition
•All of these
Answer. Interference

27. Which of the following heat treatment process should be given for a hard and wear resistant surface?

•Tempering
•Normalising
•Refining
•Case hardening
Answer. Case hardening

28. Which of the following heat treatments should be done to improve the machinability of low carbon steel?

•Hardening
•Tempering
•Normalising
•Refining
Answer. normalizing

29. Screwdrivers are classified according to which of the following?

•By length
•By shape of work tip
•By size of work tip
•By all of these
Answer. By all of these

30. Which of the following statements is not correct?

•Transistors are soft in structure
•Transistors do not have any moving or contacting parts or parts that need maintenance
•They consume negligible power
•They are of small dimensions and light weight
Answer. Transistors are soft in structure

31. Solder is the joining of two metals which are the following?

•Lead and tin
•Copper and tin
•Copper and aluminium
•Lead and copper
Answer. Lead and tin

32. If while working with acid, some acid spills into your eyes, what will you use as first aid to wash your eyes?

•Ammonia solution
•Saturated bicarbonate solution
•5% bicarbonate solution followed by hot water
•Only clean water
Answer. 5% bicarbonate solution followed by hot water

33. The maximum and minimum size of an object which is represented by the tolerance dimension is called what?

•Limit
•Allowance
•Tolerance
•Normal size
Answer. Limit

34. If ‘w’ is power in watts, ‘v’ is voltage, ‘1’ is current in amperes, then which of the following equations is correct?

•V= W.I
•W = V.I
•I = w.v
•w = V/1
Answer. W = V.I

35. Simar is a special kind of tool which is used for which of the following?

•In welding works
•In sheet metal works
•In soldering works
•In brazing works
Answer. In sheet metal works

36. Which of the following is not a power tool?

•Bearing Puller
•Air Impact Wrench
•Air Ratchet
•Pneumatic Drilling Machine
Answer. Bearing Puller

37. Parts of automobiles and agricultural machines which are subjected to pressure and vibration are tightened with which of the following?

•By general purpose bolts
•By high tensile bolts
•By ordinary bolts
•By high tensile screws
Answer. By high tensile bolts

38. Surface plate is used for which of the following?

•To cut a metal by placing it on it
•To provide a base for taking measurements with surface gauge, height gauge and dial gauge
•To check the smoothness of a job
•(a) and (b) both
Answer. (a) and (b) both

39. Which gauge is used to check valve clearance, spark plug distance (grap) and piston ring distance (gap)?

•Screw gauge
•Dial gauge
•Thread pitch gauge
•Feeler gauge
Answer. Feeler gauge

40. Which of the following is the formula of sulphuric acid used as electrolyte of lead acid batteries?

•SO4
•HSO4
•H2SO4
•H2SO2
Answer. H2SO4

41. The resistance of a good conductor is inversely proportional to which of the following?

•Cross-sectional area
•Length
•Material
•State
Answer. Cross-sectional area

42. What is the brown cable used for in automobile electrical wiring?

•Battery Circuit
•Ignition Circuit
•Earth Circuit
•Side & Tail Lamp Circuit
Answer. Battery Circuit

43. Which sheet metal joint makes the sheet leak proof?

•Lap joint
•Sim joint
•Lock joint
•Cap joint
Answer. Lock joint

44. In places where there is a lot of vibration, castle nuts are screwed onto the bolts and locked with the help of which of the following?

•Cotter pin or split pin
•Plain washer
•Spring lock washer
•Internal tooth lock washer
Answer. Cotter pin or split pin

45. Which of the following tools is used to make external threads:

•Tape
•Die
•Thread gauge
•Drill
Answer. Die

46. ​​Which of the following fluxes is generally used for brazing?

•Resin
•Borax
•NHU4
•Carbonate Chloride
Answer. Borax

47. What types of reamers are commonly used in automobile shops?

•Taper state flute
•Morse taper
•Taper parallel
•Expanding type
Answer. Expanding type

48. What is it called when two parallel edges of a metal sheet are cut in opposite directions?

•Drawing
•Swaging
•Shearing
•Piercing
Answer. Shearing

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