Q.1
Crater wear is mainly due to the phenomenon known as
Q.2
Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as
Q.3
The main purpose of spheroidising treatment is to improve
Q.4
Gear finishing operation is called
Q.5
The chuck preferred for quick setting and accurate centering of a job is
Q.6
Cold working of steel is defined as working
Q.7
Hot rolling of mild steel is carried out
Q.8
In centerless grinders, the regulating wheel is inclined at
Q.9
If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
Q.10
In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as Positive pole of the welding arc, the arrangement is known as
Q.11
The average cutting speed for turning brass with a high speed steel tool is
Q.12
The average cutting speed for turning mild steel with a high speed steel tool is
Q.13
The rake angle required to machine brass by high speed steel tool is
Q.14
If the helix angle of the drill is made ________ 30°, then the torque required to drive the drill at a given feed will be more.
Q.15
What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?
Q.16
The soft grade grinding wheels are denoted by the letters
Q.17
The operation performed on a shaper is
Q.18
A push broach as compared to pull broach
Q.19
The chuck used for setting up of heavy and irregular shaped work should be
Q.20
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
Q.21
In order to have interference fit, it is essential that the lower limit of the shaft should be
Q.22
The common welding error that occurs due to wrong speed, faulty preparation, and high / low current, improper electrode size is called?
Q.23
The angle on which the strength of the tool depends is
Q.24
It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If the spindle speed is 60 r.p.m., then the speed of lead screw will be
Q.25
The tool made of cemented carbide wear out faster at
Q.26
A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different
Q.27
A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
Q.28
Dielectric is used in
Q.29
In electro-discharge machining, dielectric is used to
Q.30
The hard grade grinding wheels are denoted by the letters
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