Q.1
The design of pin of a rocker arm of an I.C. engine is based on
Q.2
In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by
Q.3
A bolt of uniform strength can be developed by
Q.4
The power transmitted by the belt drive can be increased by
Q.5
The shock absorbing capacity of a bolt can be increased by
Q.6
Pick up wrong statement. Fatigue strength can be increased by
Q.7
The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is
Q.8
A localized compressive stress at the area of contact between two members is known as
Q.9
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)
Q.10
The ratio of endurance limit in shear to the endurance limit in flexure is
Q.11
The difference between the upper limit and lower limit of a dimension is called
Q.12
When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as,
Q.13
The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads.
Q.14
The shear stress in a beam varies from zero at the outer fibers to a maximum at the________.
Q.15
Three different weights fall from a certain height under vacuum. They will take
Q.16
The cam follower generally used in automobile engines is
Q.17
The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to
Q.18
The temperature at which the new grains are formed in the metal is known as
Q.19
For general industrial machinery, the ratio of the length of journal to its diameter is taken as
Q.20
Which of the following is a permanent fastening?
Q.21
The helix angle for double helical gears may be made up to
Q.22
Aircraft body is usually fabricated by
Q.23
The property of a material which enables it to resist fracture due to high impact loads is known as
Q.24
A self locking screw has
Q.25
When spring index increases, the value of Wahl's stress factor
Q.26
The efficiency of a riveted joint is equal to
Q.27
The strength of a riveted joint is equal to
Q.28
In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing
Q.29
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the
Q.30
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the
Q.31
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?
Q.32
For applications involving high stresses in one direction only the following type of thread would be best suited
Q.33
If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited
Q.34
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be
Q.35
Fabric belts are used in industrial applications because
Q.36
A coupling used to connect two perfectly aligned shafts, is
Q.37
Rankine Gordon formula for buckling is valid for
Q.38
The belt slip occurs due to
Q.39
The lead angle of a worm is 22.5°. Its helix angle will be
Q.40
When the bolt is very yielding as compared to the connected members, then the resultant load on the bolt will be equal to the
Q.41
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to
Q.42
The cross-section of the arm of a bell crank lever is
Q.43
In designing a key, it is assumed that the distribution of forces along the length of key
Q.44
The bearings of medium series have capacity __________ over the light series.
Q.45
When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as
Q.46
An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called
Q.47
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be
Q.48
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will
Q.49
The effective stress in wire ropes during normal working is equal to the stress due to
Q.50
The crest diameter of a screw thread is same as
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