Workshop Technology Objective Questions with Answers - Set 07 - ObjectiveBooks

Workshop Technology Objective Questions with Answers - Set 07

Practice Test: Question Set - 07

1. When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by
    (A) Washing it with water
    (B) Rubbing on wood
    (C) Washing it with dilute acid
    (D) Using file card

2. The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
    (A) Hot piercing
    (B) Extrusion
    (C) Cold peening
    (D) Cold heading

3. Thermit welding is often used in
    (A) Replacing broken gear teeth
    (B) Repairing broken shears
    (C) Joining rails, truck frames and locomotive frames etc.
    (D) All of the above

4. The electron beam welding can be carried out in
    (A) Open air
    (B) A shielded gas environment
    (C) Vacuum
    (D) A pressurized inert gas chamber

5. An oxidising process used for aluminium and magnesium articles is called
    (A) Galvanizing
    (B) Anodizing
    (C) Parkerising
    (D) Sherardizing

6. The algebraic difference between the minimum limit and the basic size is called
    (A) Actual deviation
    (B) Upper deviation
    (C) Lower deviation
    (D) Fundamental deviation

7. Piercing is an operation of cutting
    (A) A cylindrical hole in a sheet of metal by the punch and the die
    (B) A hole (other than cylindrical) in a sheet of metal by the punch and the die
    (C) A flat sheet to the desired shape
    (D) A number of holes evenly spaced in a regular pattern on a sheet of metal

8. In ________ welding, the weld may be made either from left to right or from right to left.
    (A) Forehand
    (B) Backhand
    (C) Vertical
    (D) None of these

9. The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.
    (A) Same as
    (B) Less than
    (C) More than
    (D) None of these

10. A moving mandrel is used in
    (A) Wire drawing
    (B) Tube drawing
    (C) Metal cutting
    (D) Forging

11. A rip saw
    (A) Is a two man saw
    (B) Is used for cutting along the grains of wood
    (C) Has a narrow blade with two wooden handles
    (D) All of the above

12. Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?
    (A) Drawing
    (B) Extrusion
    (C) Rolling
    (D) Extrusion and rolling

13. The minimum size of a bloom is
    (A) 5 cm × 5 cm
    (B) 10 cm × 10 cm
    (C) 15 cm × 15 cm
    (D) 20 cm × 20 cm

14. Acetylene gas is stored in cylinders in
    (A) Solid form
    (B) Gaseous form
    (C) Liquid form
    (D) Any one of these

15. In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.
    (A) Equal to
    (B) Smaller than
    (C) Larger than
    (D) None of these

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