Workshop Technology Objective Type Questions with Answers - Set 04

Practice Test: Question Set - 04

1. The teeth of hacksaw blade are bent
    (A) Towards right
    (B) Towards left
    (C) Alternately towards right and left and every third or fourth left straight
    (D) May be bent in any direction

2. Loam sand is a mixture of
    (A) 30% sand and 70% clay
    (B) 50% sand and 50% clay
    (C) 70% sand and 30% clay
    (D) 90% sand and 10% clay

3. The advantage of Thermit welding is that
    (A) All parts of the weld section are molten at the same time
    (B) Weld cools almost uniformly
    (C) Results in a minimum problem with internal residual stresses
    (D) All of the above

4. Which one of the following material will require the largest size of riser for the same size of casting?
    (A) Aluminium
    (B) Cast iron
    (C) Steel
    (D) Copper

5. The welding process used in joining mild steel shanks to high speed drills, is
    (A) Spot welding
    (B) Seam welding
    (C) Flash butt welding
    (D) Upset butt welding

6. When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
    (A) Die casting method
    (B) Slush casting method
    (C) Permanent mould casting method
    (D) Centrifugal casting method

7. Lancing is the operation of
    (A) Cutting a sheet of metal in a straight line along the length
    (B) Removal of metal to the desired shape from the edge of a plate
    (C) Cutting a sheet of metal through part of its length and then bending the cut portion
    (D) Bending a sheet of metal along a curved axis

8. The chisel used for cutting key ways is
    (A) Flat chisel
    (B) Cape chisel
    (C) Round nose chisel
    (D) Diamond pointed chisel

9. According to Indian standards, the total numbers of tolerance grades are
    (A) 8
    (B) 12
    (C) 18
    (D) 20

10. The metal patterns as compared to wooden patterns require less
    (A) Shrinkage allowance
    (B) Machining allowance
    (C) Draft allowance
    (D) Distortion allowance

11. In blanking operation, the clearance is provided on
    (A) Punch
    (B) Die
    (C) Half on the punch and half on the die
    (D) Either on punch or die depending upon designer's choice

12. For gas welding, the pressure desired at the welding torch for oxygen is
    (A) 7 to 103 kN/m²
    (B) 70 to 280 kN/m²
    (C) 280 to 560 kN/m²
    (D) 560 to 840 kN/m²

13. For gas welding, the pressure desired at the welding torch for acetylene is
    (A) 7 to 103 kN/m²
    (B) 70 to 280 kN/m²
    (C) 280 to 560 kN/m²
    (D) 560 to 840 kN/m²

14. In welding magnesium with TIG arc welding, direct current with ________ is used.
    (A) Straight polarity
    (B) Reversed polarity
    (C) Both (A) and (B)
    (D) None of these

15. In welding copper alloys with TIG arc welding
    (A) Direct current with straight polarity is used
    (B) Direct current with reversed polarity is used
    (C) Alternating current is used
    (D) Any one of these

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