A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.For each of the following multiple choice questions, choose the most appropriate answer :
1. Best example of semiliquid lubricant is :
A. Grease
B. Graphite
C. Castor oil
D. Lard oil
2. When machining an irregularly shaped workpiece held in faceplate, counterbalancing is done by clamping weights. This is done
A. Before mounting the faceplate on the spindle nose.
B. After mounting the faceplate on the spindle nose and revolving the workpiece at the slowest rpm.
C. After mounting the faceplate on the spindle nose and keeping the spindle in neutral position.
D. After taking the rough cut.
3. Which one of the following parts of a universal surface gauge helps to draw parallel lines along a datum edge?
A. Fine adjusting screw
B. Guide pins
C. Base
D. Rocker arm
4. Which of the following metals in most impervious to X-rays and gamma radiation?
A. Lead
B. Zinc
C. Gold
D. Tin
5. Which one of the following groups of properties enables the manufacture of chain links from wrought iron?
A. Ductility, malleability and hardness
B. Hardness, toughness and ductility
C. Malleability, ductility and toughness
D. Hardness, toughness and brittleness
6. Process of beveling the end of existing hole is called
A. spot-facing
B. boring
C. counter-boring
D. counter-sinking
7. Which one of the following types of chips is found while turning cast iron ?
A. Long curly chips
B. Segmental chips.
C. l-shaped chips
D. Spiral chips
8. Internal screw threads are cut by hand using
A. Twist drills
B. Chisel
C. Taps
D. Dies
9. Which machine is used to cut the sheet metal at 45 or 90 degrees?
A. Drilling
B. Bending
C. Notching
D. Welding
10. Neutral flame in gas welding contains
A. oxygen & Actylene in equal proportion
B. More oxygen than Acetylene
C. less oxygen than Acetylene
D. None of these
11. Which among the following factors governs the selection of feed when turning a workpiece ?
A. Tool geometry
B. Surface finish required
C. Type of coolant required
D. All of the above
12. Which one of the following standard tapers is self-holding type ?
A. Morse taper
B. Brown and Sharpetaper
C. Jarno taper
D. Metric taper
13. Which among the following is the lightest metal?
A. Lead
B. Tin
C. Aluminium
D. Copper
14. Which of the following ranges of carbon content is present in pig iron?
A. 0.05-1.4%
B. 0.9-1.4%
C. 1.7-2.2%
D. 3-5%
15. In a threaded assembly the contact between the male and female threads takes place on the
A. Pitches
B. Flanks
C. Crests
D. Roots
16. The quality control allows at the most 0.4% defective parts, How many defective parts can be allowed in a production of 500 parts?
A. 1
B. 2
C. 10
D. 20
17. Which one of the following operations can be done on slotting machine?
A. External keyway on long shaft
B. Internal grooves
C. Woodruff keyway on a shaft
D. Keyway for feather keys
18. Which one of the characteristics of a milling cutter is most suitable for climb milling?
A. Left hand cutting
B. Teeth material is carbide
C. Larger clearance and rake angle
D. The teeth are straight to the axis of the cutter
19. Rate of feed depends upon
A. finish required
B. material of tool (drill)
C. material to be drilled
D. all the above
20. Chief chemical property of aluminium is that it is
A. Soft
B. Brittle
C. Strong
D. Tough
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