Workshop Engineering Online Practice Test - Set 09

Practice Test: Question Set - 09

1. For smoothing and cleaning out depressions in the mould, a ________ is used.
    (A) Slick
    (B) Lifter
    (C) Swab
    (D) Gagger

2. In electric resistance welding, voltage required for heating is
    (A) 1 to 5 volts
    (B) 6 to 10 volts
    (C) 11 to 20 volts
    (D) 50 to 100 volts

3. During cold working process
    (A) Grain structure is distorted
    (B) Strength and hardness of metal increases
    (C) Close dimensional tolerance can be maintained
    (D) All of the above

4. The acetylene cylinder is usually painted with
    (A) Black colour
    (B) White colour
    (C) Maroon colour
    (D) Yellow colour

5. Aluminium is the best material for making patterns because it is
    (A) Light in weight
    (B) Easy to work
    (C) Corrosion resistant
    (D) All of these

6. The centrifugal casting method, is used for casting articles of
    (A) Symmetrical shape about vertical axis
    (B) Symmetrical shape about horizontal axis
    (C) Irregular shape
    (D) Nonferrous metal only

7. The metal is subjected to mechanical working for
    (A) Refining grain size
    (B) Reducing original block into desired shape
    (C) Controlling the direction of flow lines
    (D) All of these

8. A diamond pointed chisel is used for cutting
    (A) Flat surfaces
    (B) Grooves
    (C) Key-ways
    (D) V-shaped grooves

9. The electrodes used in spot welding have a tip of
    (A) Stainless steel
    (B) Aluminium
    (C) Copper
    (D) Brass

10. The cold chisels are made by
    (A) Drawing
    (B) Rolling
    (C) Piercing
    (D) Forging

11. Which of the following welding method uses a pool of molten metal?
    (A) Carbon arc welding
    (B) Submerged arc welding
    (C) TIG arc welding
    (D) MIG arc welding

12. The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
    (A) Outside micrometer
    (B) Inside micrometer
    (C) Depth gauge micrometer
    (D) Vernier caliper

13. In average work, the tolerance produced by investment casting method is
    (A) ±0.05 mm
    (B) +0.2 mm
    (C) +05 mm
    (D) +1 mm

14. A basic hole is one whose
    (A) Lower deviation is zero
    (B) Upper deviation is zero
    (C) Lower and upper deviations are zero
    (D) None of these

15. Cores are used to
    (A) Form internal cavities in the casting
    (B) Improve mould surface
    (C) Form a part of a green sand mould
    (D) All of these

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