Manufacturing Technology Objective Questions with answers - Set 21 - ObjectiveBooks

Manufacturing Technology Objective Questions with answers - Set 21

Practice Test: Question Set - 21

1. A taper tap has
    (A) Its end tapered for about three or four threads
    (B) Its end tapered for about eight or ten threads
    (C) Full threads for the whole of its length
    (D) None of the above

2. The top and sides of the table of a shaper usually have
    (A) L-type slots
    (B) T-type slots
    (C) I-type slots
    (D) Any one of these

3. The tap used to cut threads in a blind hole is
    (A) Taper tap
    (B) Second tap
    (C) Bottoming tap
    (D) Any one of these

4. The operation of smoothing and squaring the surface around a hole is known as
    (A) Counter-sinking
    (B) Counter-boring
    (C) Trepanning
    (D) Spot facing

5. The increase in depth of cut and feed rate _________ surface finish.
    (A) Improves
    (B) Deteriorates
    (C) Does not effect
    (D) None of these

6. The lathe spindles at the nose end have
    (A) Internal screw threads
    (B) External screw threads
    (C) No threads
    (D) Tapered threads

7. A coarse grained grinding wheel is used to grind
    (A) Hard and brittle materials
    (B) Soft and ductile materials
    (C) Hard and ductile materials
    (D) Soft and brittle materials

8. The binding material used in cemented carbide tools is
    (A) Tungsten
    (B) Chromium
    (C) Silicon
    (D) Cobalt

9. High speed steel tools retain their hardness up to a temperature of
    (A) 250°C
    (B) 350°C
    (C) 500°C
    (D) 900°C

10. An open structure of a grinding wheel is used for
    (A) Soft materials
    (B) Tough materials
    (C) Ductile materials
    (D) All of these

11. A drill mainly used in drilling brass, copper or softer materials, is
    (A) Flat drill
    (B) Straight fluted drill
    (C) Parallel shank twist drill
    (D) Tapered shank twist drill

12. The process of removing metal by a cutter which is rotated in the same direction of travel of workpiece, is called
    (A) Up milling
    (B) Down milling
    (C) Face milling
    (D) End milling

13. The operation of making a cone-shaped enlargement of the end of a hole is known as
    (A) Counter-sinking
    (B) Counter-boring
    (C) Trepanning
    (D) Spot facing

14. The cutting tool in a milling machine is mounted on
    (A) Spindle
    (B) Arbor
    (C) Column
    (D) Knee

15. Gear lapping is an operation
    (A) After heat treatment
    (B) Prior to heat treatment
    (C) For gear reconditioning
    (D) None of these

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