Production Engineering MCQ Online Practice Test - Set 23 - ObjectiveBooks

Production Engineering MCQ Online Practice Test - Set 23

Practice Test: Question Set - 23

1. A single point tool has
    (A) Rake angle
    (B) Cutting angle
    (C) Lip angle
    (D) All of these

2. When the tool moves parallel to the lathe axis, the movement is termed as
    (A) Cross feed
    (B) Angular feed
    (C) Longitudinal feed
    (D) Any one of these

3. The grade of grinding wheel depends upon
    (A) Hardness of the material being ground
    (B) Speed of wheel and work
    (C) Condition of grinding machine
    (D) All of these

4. In electro discharge machining, tool is made of
    (A) Brass
    (B) Copper
    (C) Copper tungsten alloy
    (D) All of these

5. Tool life is generally better when
    (A) Grain size of the metal is large
    (B) Grain size of the metal is small
    (C) Hard constituents are present in the micro-structure of the tool material
    (D) None of the above

6. The cutting angle of a flat drill varies from
    (A) 3° to 8°
    (B) 20° to 30°
    (C) 60° to 90°
    (D) 90° to 120°

7. Discontinuous chips are formed during machining of
    (A) Brittle metals
    (B) Ductile metals
    (C) Hard metals
    (D) Soft metals

8. As the cutting speed increases, the tool cutting forces
    (A) Remain constant
    (B) Increases
    (C) Decreases
    (D) First increases and then decreases

9. Soft materials can not be economically ground due to
    (A) High temperature involved
    (B) Frequent wheel clogging
    (C) Rapid wheel wear
    (D) Low work piece stiffness

10. In which of the following machine, the work is usually rotated while the drill is fed into work?
    (A) Sensitive drilling machine
    (B) Radial drilling machine
    (C) Gang drilling machine
    (D) Deep hole drilling machine

11. For harder alloy steel, the point angle of the drill is kept
    (A) Equal to 118°
    (B) Less than 118°
    (C) More than 118°
    (D) Any one of these

12. The average cutting speed for turning mild steel with a high speed steel tool is
    (A) 15 to 19 m/min
    (B) 25 to 31 m/min
    (C) 60 to 90 m/min
    (D) 90 to 120 m/min

13. The taper on the lathe spindle is
    (A) 1 in 10
    (B) 1 in 15
    (C) 1 in 20
    (D) 1 in 30

14. In drilling softer materials, the cutting speed is ___________ as compared to harder materials.
    (A) Same
    (B) Low
    (C) High
    (D) None of these

15. Internal or external threads of different pitches can be produced by
    (A) Pantograph milling machine
    (B) Profiling machine
    (C) Planetary milling machine
    (D) Piano miller

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