Trade Theory Semester

By iti | 4:41 PM IST, Wed April 23, 2025

1. The storage space of a fluid is called ________.
   1. Strainer
   2. Reservoir
   3. Plug
   4. Pump
2. Viscosity is an internal property of a fluid. It is a measure of its resistance to:
   1. Current
   2. Light
   3. Sound
   4. Flow
3. Which one of the following reason is responsible for shearing of rivet in a riveted joint?
   1. Diameter of the rivet is too small
   2. Diameter of the rivet is too large
   3. Thickness of plates vary
   4. Pitch of the holes is too small
4. Which type of key is used for coupling a pulley with a shaft?
   1. Square key
   2. Woodruff key
   3. Gib head key
   4. Flat saddle key
5. The brass used making the joint in brazing for soldering material is ________.
   1. Flux
   2. Borax
   3. Spelter
   4. Soft soldering
6. Which material is used for joining CI pipe?
   1. Brass
   2. Tin
   3. Lead
   4. Corrosion
7. Electroplating is done on jobs to resist corrosion. Which pole of a D.C supply is connected to the work in electroplating process?
   1. Positive pole
   2. Positive terminal post
   3. Negative pole
   4. Negative terminal post
8. Name the part marked 'x' shown in figure.
   1. Stuffing box
   2. Bonnet
   3. Gland nut
   4. Metal disk holders
9. Which pipe is used for interior work?
   1. Steel pipe
   2. PVC pipe
   3. Wrought iron pipe
   4. Lead pipe
10. What joint is used for temporary pipe line?
    1. Expansion joint
    2. Flange joint
    3. Screwed joint
    4. Collar joint
11. The function of a washer is ________.
    1. To fill the axial gap
    2. To provide cushioning effect
    3. To absorb shock and vibrations
    4. To provide bearing area
12. In a vee belt the angle between the side is ________.
    1. 10 degree
    2. 20 degree
    3. 30 degree
    4. 40 degree
13. A jig is a device used for ________.
    1. Holding the workpiece
    2. Guiding the tool
    3. Loosening the workpiece
    4. Holding the workpiece and guide the tool
14. Typical locating device for cylindrical job used in jigs and fixtures are ________.
    1. Drill jigs
    2. V-block
    3. Mandrels
    4. Angle plate
15. To put off class 'B' fire the type of fire extinguisher used ________.
    1. Dry powder
    2. Foam type
    3. Carbon dioxide
    4. Jet of water
16. Name the rivet head used for heavy fabrication work.
    1. Flat head
    2. Pan head
    3. Snap head
    4. Mushroom
17. Belt slips reason is ________.
    1. Less tension
    2. Pulsating load
    3. High starting torque
    4. Shock load
18. Which type of knot is used to joins two pieces of rope of equal diameters?
    1. Slip knot
    2. Bowline knot
    3. Square knot
    4. Sheep shank knot
19. Which nonferrous metal tensile strength can be increased by hammering or rolling?
    1. Lead
    2. Copper
    3. Tin
    4. Zinc
20. Which type of thread is used for power screws?
    1. Metric
    2. Knuckle
    3. Square
    4. BSW
21. Soldering iron are made of copper because ________.
    1. It is heavy
    2. It is a bad conductor of heat
    3. Its thermal expansion is more
    4. It is good conductor of heat
22. Name the type of jig in which a base plate is not available.
    1. Plate jig
    2. Box jig
    3. Trunnion jig
    4. Latch jig
23. In case of electric fire, which one of the following should not use?
    1. Put water on it
    2. Use sand or clay
    3. Use C.T.C extinguisher
    4. Use dry chemical powder
24. The best way of avoiding accident is by ________.
    1. Doing work in ancient way
    2. Doing work in one's own way
    3. Observing safety rules related to job, machine and workplace
    4. Using safety equipment
25. Oil fire extinguished by ________.
    1. Putting water on it
    2. Foam extinguisher
    3. Soda acid extinguisher
    4. None of these
26. In the process of soldering, you have noticed solder not sticking to sufficiently heated copper soldering bit when rubbed over solder bar. What step do you take to overcome the problem?
    1. Pre-heat the solder
    2. Clean the bit thoroughly
    3. Change the soldering bit shape
    4. Rub the bit over solder for longer period
27. Which flux is used for soldering?
    1. Zinc chloride
    2. Ammonium Chloride
    3. Hydro chloric acid
    4. All of these
28. In a riveted joint the edges of plates are simply laid over each other and riveted. This joint is called ________.
    1. Lap joint
    2. Butt joint
    3. Edge joint
    4. Corner joint
29. In a riveted joint the plates are placed end-to-end and joined through cover plates. This joint is called ________.
    1. Lap joint
    2. Butt joint
    3. Edge joint
    4. Corner joint
30. An accident is ________.
    1. Unplanned event
    2. Non-controlled event
    3. Undesirable event
    4. All of these
31. Case hardening is a method of producing hard skin on the surface of ________.
    1. High carbon steel parts
    2. Cast iron (heavy parts)
    3. Low carbon steel parts
    4. Alloy steel parts
32. “Cyaniding” and “Nitriding” are two methods of ________.
    1. Hardening
    2. Case hardening
    3. Tempering
    4. Normalising
33. Medium solder contains ________.
    1. 37% lead and 63% tin
    2. 50% lead and 50% tin
    3. 70% lead and 50% tin
    4. None of these
34. Melting temperature range of soft solder ________.
    1. 150-350°C
    2. 600-900°C
    3. 500-600°C
    4. None of these
35. Best conductor of heat and electricity is ________.
    1. Nickel
    2. Copper
    3. Chromium
    4. Aluminium
36. The standard taper of pin is ________.
    1. 1:20
    2. 1:30
    3. 1:40
    4. 1:50
37. The included angle for the V belt is usually in degrees ________.
    1. 10 to 20
    2. 20 to 30
    3. 30 to 40
    4. 60 to 80
38. The size of gear is usually specified by ________.
    1. Pressure angle
    2. Circular pitch
    3. Diametrical pitch
    4. PCD
39. For shaft in parallel and rotating in same direction the belt drive used is ________.
    1. Open
    2. Cross
    3. Diagonal
    4. None of these
40. When close the pipe end is required fitting of ________.
    1. Plug
    2. Cap
    3. Socket
    4. Tee
41. The purpose of lubrication is ________.
    1. To reduce friction
    2. To reduce wear
    3. Transfer heat produced
    4. All of these
42. The rolling contact bearings are known as ________.
    1. Thick lubricated bearings
    2. Plastic bearings
    3. Thin lubricated bearings
    4. Antifriction bearings
43. Radial distance of a gear tooth from the pitch circle to the top of the tooth is known as:
    1. Addendum
    2. Dedendum
    3. Module
    4. Pitch
44. V-block (vee locators) are used for clamping as well as locating when faces are inclined up to:
    1. 30°
    2. 12°
    3. 9°
    4. 3°
45. Gun metal is an alloy of copper:
    1. Tin and Zinc
    2. Lead and Zinc
    3. Zinc and Nickel
    4. Lead and Nickel
46. Brass is an alloy of ________.
    1. Copper and Tin
    2. Lead and Tin
    3. Copper and Zinc
    4. Copper and Silver
47. TQM is meant to satisfy ________.
    1. Shareholders
    2. Consumers
    3. People in the organization
    4. All of these
48. Which one of the following thread forms on bolts and nuts is meant for general fastening purposes?
    1. ‘V’ thread
    2. Square thread
    3. Knuckle threads
    4. Acme threads
49. A tab washer is used for ________.
    1. Self-locking
    2. Locking the nuts
    3. Avoiding vibration
    4. Fastening vibration work
50. In a pneumatic system, a sensor serves the purpose of ________.
    1. Transmission
    2. Control
    3. Feedback
    4. Storage

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Comments (1)

1. Reservoir2. Flow3…

iti

2 months 3 weeks ago

Permalink

New

• 1. Reservoir
• 2. Flow
• 3. Diameter of the rivet is too small
• 4. Gib head key
• 5. Spelter
• 6. Lead
• 7. Negative pole
• 8. Gland nut
• 9. PVC pipe
• 10. Screwed joint
• 11. To provide bearing area
• 12. 40 degree
• 13. Holding the workpiece and guide the tool
• 14. V-block
• 15. Foam type
• 16. Snap head
• 17. Less tension
• 18. Square knot
• 19. Copper
• 20. Square
• 21. It is good conductor of heat
• 22. Latch jig
• 23. Put water on it
• 24. Observing safety rules related to job, machine and workplace
• 25. Foam extinguisher
• 26. Clean the bit thoroughly
• 27. All of these
• 28. Lap joint
• 29. Butt joint
• 30. All of these
• 31. Low carbon steel parts
• 32. Case hardening
• 33. 50% lead and 50% tin
• 34. 150–350°C
• 35. Copper
• 36. 1:50
• 37. 30 to 40
• 38. Diametrical pitch
• 39. Open
• 40. Cap
• 41. All of these
• 42. Antifriction bearings
• 43. Addendum
• 44. 30°
• 45. Tin and Zinc
• 46. Copper and Zinc
• 47. All of these
• 48. ‘V’ thread
• 49. Locking the nuts
• 50. Feedback