Production Engineering Set 30

Mechanical Engineering

Practice Mode Previous Next
On This Page

This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 30

Q1 | Which of the following method cannot be used for manufacturifng internal gears?
  • Die casting
  • Broaching
  • Casting
  • Hobbing
  • Stamping
Answer: Hobbing
Q2 | Which of the following is an accessory for lathe?
  • Head stock
  • Lead screw
  • Steady rest
  • Tool post
  • Tail stock
Answer: Steady rest
Q3 | The size of a lathe is expressed by
  • Height of centres from ground
  • Swing of lathe
  • Maximum speed of chuck
  • Gross weight of lathe
  • Diameter of chuck
Answer: Swing of lathe
Q4 | During oxyacetylene flame cutting, the metal is cut due to
  • Reduction process
  • Molecular transfer
  • Intensive oxidation
  • Evaporation of metal
  • Burning of metal
Answer: Intensive oxidation
Q5 | If a drill does not cut; the probable cause would be
  • Drill blunt
  • Material difficult to drill
  • Speed low
  • Absence of coolant
  • None of the above
Answer: Drill blunt
Q6 | Which of the following defect in castings may develop due to inadequate venting?
  • Misruns
  • Blow holes
  • Cold shuts
  • Parting off
  • Inclusions
Answer: Blow holes
Q7 | The relief angle for high speed steel tools is usually
  • 30? to 60?
  • 1? to 3?
  • 16? to 30?
  • 3? to 10?
  • 11? to 15?
Answer: 3? to 10?
Q8 | The fact that how closely the instrument reading follows the measured variables is termed as
  • Threshold sensitivity
  • Fidelity
  • Precision
  • Accuracy
  • Hysteresis
Answer: Fidelity
Q9 | The averge cutting speed for machining mild steel by high speed steel tool is
  • 30 m/min
  • 50 m/min
  • 20 m/min
  • 10 m/min
  • 40 m/min
Answer: 30 m/min
Q10 | In metal cutting operations continuous chips are produced while machining
  • Brittle materials
  • Ductile materials
  • Hard materials
  • Soft materials
  • None of the above
Answer: Ductile materials
Q11 | Drilling speed in aluminium nearly
  • 35 to 50 m/min
  • 10 to 25 m/min
  • 60 to 75 m/min
  • 3 to 5 m/min
  • 80 to 100 m/min
Answer: 35 to 50 m/min
Q12 | Which of the following has better machinability as compared to the remaining?
  • Low carbon steels
  • Zinc alloys
  • Parting off
  • Gun metal
  • Wrought iron
Answer: Zinc alloys
Q13 | Crossing in foundry practice is
  • A means for checking the strength of cores
  • A defect in casting that can be removed by heating in a furnace and cooling at show rate.
  • The process of addition of chemicals to the molten metal to improve its fluidity
  • The process of formation of oxides on the surface of the molten metal
  • The process of forcing metal uniformly into the mould
Answer: The process of formation of oxides on the surface of the molten metal
Q14 | Quill is
  • Curring a blind key way on an object
  • A steel tube in the head of some machine tools that encloses the bearings and rotating spindle on which are mounted the cutting tools
  • A tool used in milling machine to cut T-slots
  • A holding device used on planers
  • None of above
Answer: A steel tube in the head of some machine tools that encloses the bearings and rotating spindle on which are mounted the cutting tools
Q15 | Which of the following gears are not used to transmit motion from one shaft to another shaft at an angle to the first?
  • Worm gears
  • Bevel gears
  • Spur gears
  • Herringbone gears
  • Helical gears
Answer: Spur gears
Q16 | For defining length the standard generally followed is
  • Bar standard
  • End standard
  • Light wave standard
  • Any of the above
  • None of the above
Answer: Any of the above
Q17 | A flatter is made of
  • Parting off
  • High speed steel
  • Mild steel
  • High carbon steel
Answer: High carbon steel
Q18 | Slag inclusion in castings is a
  • Internal defect
  • Defect that can be removed by felting
  • Surface defect
  • Superficial defect
  • Moulding defect
Answer: Surface defect
Q19 | Which one of the following methods cannot be used for producing external threads?
  • By tap
  • By dies
  • Vernier caliper
  • By rolling
  • One lathe
Answer: By tap
Q20 | The diameter of a round bar with close tolerances is quickly measured by
  • Slip gauges
  • External micrometer
  • Vernier caliper
  • Snap gauge
  • Any of the above
Answer: Snap gauge
Q21 | Choose the incorrect statement. Good machinability results in
  • Low components cost
  • Moderate cuttng forces
  • Smaller chips
  • All of the above
  • A process of removing carbon from metals
Answer: Low components cost
Q22 | The main advantage of using synthetic sand in foundry is
  • It does not require moisture
  • It is less costly
  • Its properties can be easily controlled
  • It is highly refractory
  • It can take any shape
Answer: Its properties can be easily controlled
Q23 | In ball bearing steels, chromium percentage is normally in the range
  • 3 - 5 percent
  • 14 - 16 percent
  • 5 - 10 percent
  • 1 - 2 percent
  • 2 - 3 percent
Answer: 14 - 16 percent
Q24 | A balometer is an element which senses
  • Optical input and delivers thermal output
  • Thermal input
  • Electrical input and delivers thermal output
  • Optical input and delivers electrical output
  • None of the above
Answer: Optical input and delivers thermal output
Q25 | The power is transmitted by lead screw to the carriage through
  • Rack and pinion a arrangement
  • Gear system
  • Chain drive
  • Pulley drive
  • Half nut
Answer: Half nut
Previous Next