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. Oil grooves are to be cut in brass half bearings. Which one of the following chisels in suitable?
A. Flat chisel
B. Cross chisel
C. Half round nose chisel
D. Web chisel
2. It is commonly observed that the face of a grinding wheel becomes shiny and smooth or glazed after some use due to one of the reasons stated below?
A. Grade of wheel is too hard
B. Abrasive of the wheel not suitable for the purpose
C. Grain size is too coarse
D. Structure of the wheel is too open
3. A point to point control system is suitable only for one of the following applications?
A. Milling profile
B. Turning
C. Drilling
D. Grinding
4. A hole whose lower deviation is zero is called basic hole, which one of the following letters indicates basic hole?
A. E
B. F
C. G
D. H
5. In a planning machine the depth of cut is given by?
A. Adjusting tool slide
B. Rotating the feed screw of the tool holder
C. Moving cross slide
D. Lifting the work piece
6. In Field Hockey, each team has ____ players on the field at any one time.
A. 9
B. 8
C. 11
D. 12
7. Which taper is used on spindle nose of the lathe head stock?
A. Jerno taper
B. Brown and sharp taper
C. Pin taper
D. Morse taper
8. A finish cut is given to improve the surface finish of a rough milled workpiece?
A. Decrease cutting speed, feed rate and depth of cut
B. Increase feed rate, depth of cut and reduce cutting speed
C. Increase feed rate, depth of cut and cutting speed
D. Increase cutting speed, reduce feed rate and depth of cut
9. After simplification of ( 3 / 4 ) + ( 2 / 5 ) - ( 7 / 20 ), we will get:
A. 19 / 40
B. 9 / 20
C. 4 / 5
D. 17 / 20
10. The component of the surface texture upon which the roughness is superimposed is known as?
A. Surface roughness
B. Surface texture
C. Lay
D. Waviness
11. A high carbon steel has to be forged, which colour indicate the most suitable forging temperature?
A. Yellow red
B. Dark cherry red
C. white
D. Light yellow
12. Slip gauges are used as standards for precision length measurements, the slip gauges are available in four grades as per BIS standard, which one of the following grades is meant only for reference?
A. 0 grade
B. 1 grade
C. 00 grade
D. 11 grade
13. Rough and finish boring operations are carried out to machine a hole in a milling machine, for rough boring select?
A. High spindle speed and coarse feed
B. slow spindle speed and coarse feed
C. slow spindle speed and fine feed
D. High spindle speed and fine feed
14. The lead screw pitch of a milling machine is 5mm and the dividing head ratio is 40 : 1 the lead of the milling machine is?
A. 0.125 mm
B. 5 mm
C. 8 mm
D. 200 mm
15. MGNREGA provides legal guarantee for employment at minimum wages to adult members of a household in a financial year for at least
A. 120 days
B. 90 days
C. 100 days
D. 80 days
16. A 42 teeth involute helical gear with a helix angle of 45 deg is to be cut on a milling machine?
A. 12 to 13
B. 35 to 54
C. 135 to rake
D. 17 to 20
17. The web of twist drill, due to repeated grinding causes resistance to feeding while drilling a 12 mm diameter hole, the above effect is reduced by providing?
A. Negative rake of web
B. Thinning of web
C. Less feeding force
D. More feeding force
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. Why it is necessary to maintain an approach distance between the cutting tool and the work while working on shaping machine?
A. To cool down the cutting edge of the tool bit
B. To avoid any ridger at the end of workpiece
C. To allow the chips to fall and clear the cutting edge
D. To enable the clapper box to return to cutting
20. Which is the correct expression for the unit of feed rate in milling?
A. m/min
B. mm/rev
C. mm/sec
D. mm/min
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