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ATS CLASSES [ MECH , RRB JE/SSC JE]

ATS CLASSES [ MECH , RRB JE/SSC JE]

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For RRB JE /SSC JE of Mechanical Engineering students.

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Q.60 Determine the elevation for 30˚ using 5.00” sine bar. [RRB JE 2019]
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Q.59 What is meant by HVOF in metal coating? [RRB JE 2019]
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Q.58 In a vernier calliper, the main scale reads in mm with a least count of 0.1 mm .10 division on the vernier correspond to 9 divisions of the main scale.Find the least count of the calliper
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Q.57 __________ is a group of fine holes on the surface of the weld caused by gas entrapment. [RRB JE 2019]
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Q.56 A cutting tool can never have its [RRB JE 2019]
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Q.55 Which of the following materials has nearly zero coefficient of expansion? [RRB JE 2019]
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Q.54 Find the tool life equation, if a tool life of 80 min is obtained at a cutting speed of 30 m/min and 8 min at 60 m/min. [RRB JE 2019]
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Q.53 Corundum is composed of about 85 percent of [RRB JE 2019
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Q.52 Which of the following gases is NOT used as shielding gas in arc welding? [RRB JE 2019]
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Q.51 The length of the slot weld can be obtained from the ratio of [RRB JE 2019]
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Q.50 How long should a steel component be heat treated before nitriding? [RRB JE 2019]
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Q.49 Grinding is used for [RRB JE 2019]
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Q.48 __________ is fitted on the top of cross slide and is used to support the tool post and the cutting tool. [RRB JE 2019]
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Q.47 The largest diameter of work that can be carried between the centers of a lathe is known as [RRB JE 2019]
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Q.46 _______ consists of a mixture of clay, feldspar, flint and frit in varying proportions.                                                                   [RRB JE 2019]
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Q.45 Lathe bed is made up of [RRB JE 2019]
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Q.44 Which of the following properties is desirable in parts subjected to shock and impact loads? [RRB JE 2019]
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