➤ System in Mechanical Engineering
👉 Unit 1 - Introduction of energy sources and its conversion >> MCQs
👉 Unit 2 - Introduction to Thermal Engineering >> MCQs
👉 Unit 3 - Vehicles and their Specifications >> MCQs
👉 Unit 4 - Vehicles Systems >> MCQs
👉 Unit 5 - Introduction to Manufacturing >> MCQs
👉 Unit 6 – Engineering Mechanism & their applications in domestic appliances >> MCQs
Unit 5 - Introduction to Manufacturing >> MCQs
1. Which of the following is manufacturing process?
a. Forging
b. Welding
c. Casting
d. All of the above
Ans=> d. All of the above
2. Which of the following is not a part of carriage of the centre lathe?
a. Tool post
b. Apron
c. Compound rest
d. Gear box controls
Ans=> d. Gear box controls3. The centre lathes receive their power through
a. Headstock
b. Tailstock
c. Both a & b
d. None of the above
Ans=> a. Headstock4. A flat surface can be produced by a lathe machine, if the cutting tool moves
a. parallel to the axis of rotation of workpiece
b. at an angle of 450
c. perpendicular to the axis of rotation of work piece
d. None of the above
Ans=> c. perpendicular to the axis of rotation of work piece5. What is the function of pulley drive in lathe machines
a. Drive the lead screw
b. Change the spindle speed
c. Drive the tail-stock
d. All of the above
Ans=> b. Change the spindle speed6. Which of the following is a mechanism for mechanized movements of the carriage along longitudinal axis?
a. Cross-slide
b. Compound rest
c. Apron
d. Saddle
Ans=> c. Apron7. The function of taper turning process is to
a. reduce the diameter of a work piece along its length
b. reduce the diameter by removing material about an axis offset from the axis of work piece
c. remove the material from end surface of a work piece
d. All of the above
Ans=> a. reduce the diameter of a work piece along its length8. The process of removing sharp ends of a work piece is called as
a. Knurling
b. Grooving
c. Facing
d. Chamfering
Ans=> d. Chamfering9. What is meant by drag in casting process?
a. Upper part of casting flask
b. Molten metal
c. Lower part of casting flask
d. Upper & lower part of casting flask
Ans=> c. Lower part of casting flask10. Casting replica used to make the cavity is called as
a. Mould
b. Pattern
c. Cope
d. None of the above
Ans=> b. Pattern11. The process of joining similar or dissimilar materials by heating them below 4500C using non-ferrous filler material is called as
a. Brazing
b. Soldering
c. Welding
d. All of the above
Ans=> b. Soldering12. Which process squeezes metals into peaks and troughs with plastic deformation?
a. Knurling
b. Grooving
c. Reaming
d. None of the above
Ans=> a. Knurling13. Which of the following operations is/are performed on a lathe machine
a. Spot-facing
b. Parting
c. Reaming
d. All of the above
Ans=> b. Parting14. The process of chamfering the entrance of a drilled hole is known as
a. counter-boring
b. counter-sinking
c. counter-fillet
d. trepanning
Ans=> b. counter-sinking15. On drilling machine, which process is known as reaming?
a. Enlargement of existing hole
b. Hole made by removal of metal along the hole circumference
c. Smoothly finishing and accurately sizing a drilled hole
d. All of the above
Ans=> c. Smoothly finishing and accurately sizing a drilled hole16. Match the following Manufacturing processes with their Types and select the correct option.
1.Metal forming ———— A. Grinding
2.Surface finish —————— B. Rivetting
3.Sheet metal working ---------------C. Extrusion
4. Metal joining —————————————-D. Blanking
a. 1 – A, 2 – C, 3 – D, 4 – B
b. 1 – C, 2 – A, 3 – D, 4 – B
c. 1 – B, 2 – A, 3 – D, 4 – C
d. 1 – D, 2 – B, 3 – A, 4 – C
Ans=> b. 1 – C, 2 – A, 3 – D, 4 – B17. In which of the following processes, material is neither added nor removed but is deformed into desired shape
a. Surface finishing process
b. Metal forming process
c. Casting
d. Machining
Ans=> b. Metal forming process18. What is the process, in which the metal is caused to flow through a restricted orifice to create an extremely elongated strip of uniform and comparatively smaller cross-sectional area, called?
a. Rolling
b. Extrusion
c. Drawing
d. Spinning
Ans=> b. Extrusion19. Castings are usually
a. costlier than forgings
b. cheaper than forgings
c. at the same rate as forging for similar metal
d. none of the above
Ans=> b. cheaper than forgings20. Which of the following options best describes the centre lathes?
a. Machining machines
b. Shaping machines
c. Turning machines
d. None of the above
Ans=> c. Turning machines21. The process of joining two pieces of metal with a different fusible metal applied in a molten state is called as
a. welding
b. soldering
c. both a. and b
d. none of the above
Ans=> b. soldering22. Which gears are used to connect two intersecting shaft axes?
a. Crossed helical gear
b. Worm and worm wheel
c. Bevel gears
d. All of the above
Ans=> c. Bevel gears23. What is meant by gear ratio?
a. The ratio of pinion speed and gear speed
b. The ratio of number of teeth on pinion and number of teeth on gear
c. Both a. and b
d. None of the above
Ans=> a. The ratio of pinion speed and gear speed24. The sand in its natural or moist state is called as
a. green sand
b. loam sand
c. dry sand
d. none of the above
Ans=> a. green sand25. Micro machining processes (MMPs) are used to increase selectivity, accuracy, performance, etc. parameters
a. True
b. False
Ans=> a. True26. Choose the odd one out.
a. micro-turning
b. micro-milling
c. micro-EBM
d. micro-grinding
Ans=> c. micro-EBM
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