A stud is
A.Screw with long threads
B.Screw with circular heads
C.Screw with cylindrical head
D.Headless scew
E.Oval heads screw
Category: Machine Design Mcqs
The part of the tooth which lies between the pitch and dedendum circle is known as
A.Face
B.Root
C.Profile
D.Flank
E.Base
Power capacitors are used
A.To improve electrical capacity
B.To improve efficiency
C.To reduce power factor
D.To improve power factor
E.None of the above
In case of worm and worm-wheel the maximum efficiency is obtained when
A.Worm is driver
B.Worm wheel is driver
C.Either of the worm or worm wheel is a driver
D.Depends on other factors
E.None of the above
Under which condition a material ordinatily said to be ductile undergoes a fracture similar to that of a brittle material
A.Cyclic loading at normal temperature
B.Long time static loading at elevated temperature
C.Impact loading specially at low temperatures
D.All of the above
E.None of the above
A suspended body is to be struck heavily without producing any reaction at the support. It should be hit at
A.Centre of gravity
B.Metacentre
C.Centroid
D.Centre of spin
E.Centre of percussion
Splines are used when
A.The power to be transmitted is high
B.The power to be transmitted is low
C.The torque is high
D.rpm are high
E.Axial relative motion between shaft and hub is necessary
In an extra humid atmosphere which one of the following motor would you select?
A.Open type
B.Semi-protected
C.Drip proof
D.Fan cooled
E.Totally enclosed fan cooled
Safety valve used on locomotive boilers is generally of
A.Dead weight type
B.Indirect dead weight type
C.Spring balanced type
D.Lever load type
E.Spring type
A rope sheave of balance weight for the cage is supported on an axle 25 cm. The maximum tension in the rope is 1500 kg. For safe design the point of application of the load should be considered at
A.End points
B.Middle of span
C.Anywhere along the span
D.Case should be analysed for various positions of load along the span
E.Data should be taken from hand books
