Q.1
Quality screw threads are produced by
Q.2
The saw milling is an operation of
Q.3
The chamfering is an operation of
Q.4
Ultrasonic machining is best suited for
Q.5
Which of the following parameters govern the value of shear angle in continuous chip formation?
Q.6
The grooving is an operation of
Q.7
Work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles ‘on’ and 2 cycles ‘off’ Power supply is at 50 Hz. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm.
Q.8
The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
Q.9
The cutting speed for drilling copper with high speed steel drills varies from
Q.10
Internal gears can be made by
Q.11
What is the type of welding defect caused due to poor manipulation of weld rod or a dirty joint called?
Q.12
The broaching operation in which the work moves past the stationary tool is called
Q.13
Discontinuous chips are formed during machining of
Q.14
Continuous chips with built up edge are formed during machining of
Q.15
The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
Q.16
The lathe centres are provided with standard taper known as
Q.17
The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
Q.18
In ECM, the material removal is due to
Q.19
The effective number of lattice points in the unit cell of simple cubic, body centered cubic, and face centered cubic space lattices, respectively, are
Q.20
The effect of setting a boring tool above center height leads to
Q.21
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
Q.22
In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the material removal rate
Q.23
Twist drills are made of
Q.24
Tool life is generally better when
Q.25
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
Q.26
The drill spindles are provided with standard taper known as
Q.27
A single point thread cutting tool should ideally have
Q.28
In order to prevent tool from rubbing the work _________ on tools are provided.
Q.29
During normalizing process of steel, the specimen is heated
Q.30
A grinding wheel becomes glazed (i.e. cutting edge takes a glass-like appearance) due to
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