Steady rest is
A.An additional support provided for long jobs
B.Used while turning unsymmetrical objects
C.Used during thready cutting only
D.Used when a lathe is subject to vibrations
E.Used when a lathe is not provided with foundations
Category: Production Engineering Mcqs
Thermit welding differs from other methods of welding in the following way:
A.It does not use heat
B.It employs exothermal chemical reaction for developing high temperature
C.It is less time consuming
D.It does not require electrodes
E.None of the above
The averge cutting speed for machining mild steel by high speed steel tool is
A.10 m/min
B.20 m/min
C.30 m/min
D.40 m/min
E.50 m/min
Which of the following gears are not used to transmit motion from one shaft to another shaft at an angle to the first?
A.Bevel gears
B.Helical gears
C.Spur gears
D.Herringbone gears
E.Worm gears
The cemented carbide tools are generally poor in
A.Compression
B.Tension
C.Shear
D.Torsion
E.None of the above
When large number of components are turned and parted off from a bar, the chuck used is
A.Three jaw chuck
B.Four jaw chuck
C.Face place
D.Collet chuck
E.Magnetic chuck
Gun metal is an alloy containing
A.Copper, nickel, silver
B.Copper, lead, tin
C.Copper, tin, silver
D.Copper, tin, zinc
E.Copper, zinc, silver
Thermocouples are generally used for accurate temperature measurement upto
A.100?C
B.200?C
C.500?C
D.1000?C
E.1600?C
Which one does not fit with rest in the following?
A.Reamer
B.Pipe cutter
C.Drill
D.Tapping
E.Jaw chuck
In ultrasonic welding the frequency range is generally
A.100 – 4000 cps
B.4000 – 20,000 cps
C.20,000 – 80,000 cps
D.80,000 – 800,000 cps
E.800,000 – 5000,000 cps
