Machinist (Grinder)semester 1 - 2017-19 Exam Question paper Part ii
26.Whieh 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
27.Clearance between mating parts is measured by -
a) Dial gauge b) “Go” gauge 0) Feeler gauge d) Caliper gauge
29.The pitch diameter of the thread is the- a)Notional diameter of the rod
b) Imaginary diameter in between the major & minor diameter of the thread
c) Minor diameter of the thIead
d)Major diameter of the thread
30. While using the form tool method of taper turning in a lathe-
a) Carriage is to be locked b) Compound rest is to be locked c) Top slide is to be locked d) Tail stock is to be locked
31.To convert the linier motion of the plunger of a dial test indicator to the rotory motion of the pointer, which one of the following mechanism is used -
a) Quick return motion b) Rack and pinion mechanism c) Screw thread mechanism d) Hydraulic mechanism
32.A grinding wheel is dressed by a diamond dresser, Ifthe dresser is moved rapidly across the wheel face, the resultant finish on the wheel face is
a) Smooth b) Rough c) No improvement d) Cannot say
33.Most common type of cutting fluid used in almost all the machining operation is -
a) Water b) Lard oil 6) Soluble oil d)Compressed air
34.Which one of the following instruments is used to check the concentn'city of the out side diameter -
a) Out side micrometer b) Dial caliper c) Dial test indicator d) Vemier calipers
35.Generally the length of the handle of vice is -
a) 1.5 times the nominal size of the vice b) 2.5 times the nominal size of the Vice c)3.5 times the nominal size of the vice d)4.5 times the nominal size of the vice
36. Which among the following statements is suitable to get better finish by turning -
a) Increase the speed and reduce the feed b) Reduce feed and speed
c)increase the feed and reduce the speed b) Increase feed and speed
37.After threading a hole by a tap, it was found that the crest of thread was not formed through out. Which one of the following reasons would have caused this defect -
a) Insufficient coolant supply
b) Broken the tip of cutting edge of the tap c) Hole size slightly less than the tap drill size
d) Hole size slightly more than the tap drill size
38.What will happen if the job is loosely fitted between centres in cylindrical grinding-
a) The job will be out 0f round b) The job will be oversized c) The job will be thrown out d) The job will not rotate
39.The purpose of Normalising steel is to a) Remove the induced stresses
b) Improve machinability
c) Soften the steel '
d)Increase the toughness and reduce brittleness
40.In metric outside micrometer has threaded spindle with a pitch of -
a) 0.5 mm b) 0.25 mm c) 1.00 mm d)1.50 mm
41.''Discoloration or bumishing “of work piece defect is produced by a surface grinding machine this is due to -
a) In correct dressing b) Vibration of the machine c) Too much gn'nding heat d)None of these
42.The principle of universal bevel protractor is similar to that of -
a) Depth micrometer. b) Dial test indicator
c) Vemier bevel protractor d) Fixedgauge
43. The symbol conventionally used for resinoid bond is -
a) V b) R c) B d) E
44.The cause for “Glazing” of a grinding wheel is -
a) Grain size is too fine b) Wheel IS hard c)Wheel speed is too fast d) Both (a) & (b)
45.In a lathe “dead centre”, as compared with the live centre, bears or resists
a) Equal friction b) More friction c) No friction d) Less friction
46. The general ratio of soluble oil and water used as a coolant is -
a) 10 : l b) 1 : 10 c) 1:20 d) 20 : 1
47.Which abrasive do you use for grinding carbide -
a) Corrundum b) Silicon carbide c)Tungston carbide d) Alummium oxide
49. A wedge like tool is used for removing the taper shank tool from the nose of the machine Spindle, this is called -
a) Drill chuck b) Drill key c) Drill drift d) Drill socket
50.For cylindrical grinding a small diameter work with fairly large wheel, which among the following grades of wheel should be used-
a) Soft b) Hard c) Medium d) Very soft
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| Machinist (Grinder)semester 1 - 2017-19 Exam Question paper |
26.Whieh 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
27.Clearance between mating parts is measured by -
a) Dial gauge b) “Go” gauge 0) Feeler gauge d) Caliper gauge
29.The pitch diameter of the thread is the- a)Notional diameter of the rod
b) Imaginary diameter in between the major & minor diameter of the thread
c) Minor diameter of the thIead
d)Major diameter of the thread
30. While using the form tool method of taper turning in a lathe-
a) Carriage is to be locked b) Compound rest is to be locked c) Top slide is to be locked d) Tail stock is to be locked
31.To convert the linier motion of the plunger of a dial test indicator to the rotory motion of the pointer, which one of the following mechanism is used -
a) Quick return motion b) Rack and pinion mechanism c) Screw thread mechanism d) Hydraulic mechanism
32.A grinding wheel is dressed by a diamond dresser, Ifthe dresser is moved rapidly across the wheel face, the resultant finish on the wheel face is
a) Smooth b) Rough c) No improvement d) Cannot say
33.Most common type of cutting fluid used in almost all the machining operation is -
a) Water b) Lard oil 6) Soluble oil d)Compressed air
34.Which one of the following instruments is used to check the concentn'city of the out side diameter -
a) Out side micrometer b) Dial caliper c) Dial test indicator d) Vemier calipers
35.Generally the length of the handle of vice is -
a) 1.5 times the nominal size of the vice b) 2.5 times the nominal size of the Vice c)3.5 times the nominal size of the vice d)4.5 times the nominal size of the vice
36. Which among the following statements is suitable to get better finish by turning -
a) Increase the speed and reduce the feed b) Reduce feed and speed
c)increase the feed and reduce the speed b) Increase feed and speed
37.After threading a hole by a tap, it was found that the crest of thread was not formed through out. Which one of the following reasons would have caused this defect -
a) Insufficient coolant supply
b) Broken the tip of cutting edge of the tap c) Hole size slightly less than the tap drill size
d) Hole size slightly more than the tap drill size
38.What will happen if the job is loosely fitted between centres in cylindrical grinding-
a) The job will be out 0f round b) The job will be oversized c) The job will be thrown out d) The job will not rotate
39.The purpose of Normalising steel is to a) Remove the induced stresses
b) Improve machinability
c) Soften the steel '
d)Increase the toughness and reduce brittleness
40.In metric outside micrometer has threaded spindle with a pitch of -
a) 0.5 mm b) 0.25 mm c) 1.00 mm d)1.50 mm
41.''Discoloration or bumishing “of work piece defect is produced by a surface grinding machine this is due to -
a) In correct dressing b) Vibration of the machine c) Too much gn'nding heat d)None of these
42.The principle of universal bevel protractor is similar to that of -
a) Depth micrometer. b) Dial test indicator
c) Vemier bevel protractor d) Fixedgauge
43. The symbol conventionally used for resinoid bond is -
a) V b) R c) B d) E
44.The cause for “Glazing” of a grinding wheel is -
a) Grain size is too fine b) Wheel IS hard c)Wheel speed is too fast d) Both (a) & (b)
45.In a lathe “dead centre”, as compared with the live centre, bears or resists
a) Equal friction b) More friction c) No friction d) Less friction
46. The general ratio of soluble oil and water used as a coolant is -
a) 10 : l b) 1 : 10 c) 1:20 d) 20 : 1
47.Which abrasive do you use for grinding carbide -
a) Corrundum b) Silicon carbide c)Tungston carbide d) Alummium oxide
49. A wedge like tool is used for removing the taper shank tool from the nose of the machine Spindle, this is called -
a) Drill chuck b) Drill key c) Drill drift d) Drill socket
50.For cylindrical grinding a small diameter work with fairly large wheel, which among the following grades of wheel should be used-
a) Soft b) Hard c) Medium d) Very soft
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Machinist (Grinder)- 2017-19 Exam Question paper Part ii
Reviewed by ITI-Machinist
on
February 23, 2019
Rating:
Reviewed by ITI-Machinist
on
February 23, 2019
Rating:
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