Q.1
In cross or regular lay ropes
Q.2
The lower deviation is the algebraic difference between the
Q.3
The stretching in a belt can be controlled by __________ the stress in the belt.
Q.4
When compared to the rod of the same diameter and material, a wire rope
Q.5
The design of shafts made of brittle materials is based on
Q.6
An Involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the
Q.7
A sliding bearing which operates without any lubricant present, is called
Q.8
The bearing characteristic number in a hydrodynamic bearing depends upon
Q.9
Spring stiffness is
Q.10
Residual stress in materials
Q.11
In thrust bearings, the load acts
Q.12
Which is correct statement? Stress concentration in cyclic loading is
Q.13
Stress concentration factor is defined as the ratio of
Q.14
The cam follower extensively used in aircraft engines is
Q.15
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
Q.16
Multiple threads are used to secure
Q.17
Whether any core is required in wire ropes
Q.18
The stress in the threaded part of the bolt will be __________ as compared to the shank.
Q.19
Crushing resistance required to crush the rivet per pitch length is
Q.20
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material)
Q.21
Which of the following welded joint is designed for shear strength?
Q.22
Fibrous fracture occurs in
Q.23
The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by
Where m = mass of belt per meter (kg/m)
v = belt velocity (m/s)
f = coefficient of friction
a = angle of wrap (radians)
Q.24
Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected in series. The stiffness of an equivalent spring is given by
Q.25
For same pulley diameters, center distance, belt speed and belt and pulley materials,
Q.26
Two shafts will have equal strength, if
Q.27
The draw of cotter need not exceed
Q.28
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)
Q.29
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to
Q.30
For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is
Q.31
The product of the diametral pitch and circular pitch is equal to
Q.32
According to Rankine's theory, the failure occurs at a point in a member
Q.33
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be
Q.34
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be
Q.35
Pitch point of a cam is
Q.36
The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called
Q.37
The period during which the cam follower remains at rest, when cam moves, is known as
Q.38
Ball bearing type screws are found in following application
Q.39
Which of the following statement is correct for gears?
Q.40
Which is correct statement?
Q.41
A hot short metal is
Q.42
Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is
Q.43
The taper on cotter varies from
Q.44
A universal coupling is used to connect two shafts
Q.45
Oldham coupling is used to connect two shafts
Q.46
A flange coupling is used to connect two shafts
Q.47
The material commonly used for crane hooks is
Q.48
During hot working of metals,
Q.49
Silver based solder is used for
Q.50
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.
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