Q.1
Eye bolts are used for
Q.2
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to
Q.3
A transmission shaft includes
Q.4
Lewis form factor for 14½° composite and full depth involute system is (where T = Number of teeth)
Q.5
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
Q.6
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be
Q.7
The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils)
Q.8
For longitudinal joint in boilers, the type of joint used is
Q.9
The number of slots in a 25 mm castle nut is
Q.10
According to I.B.R., the thickness of the boiler shell should not be less than
Q.11
According to I.B.R., the factor of safety of riveted joint should not be less than
Q.12
According to I.B.R., the distance between the rows of rivets, for equal number of rivets in more than one row for lap joint or butt joint (chain riveting) shall not be less than
Q.13
The draw of cotter should not be more than
Q.14
Auto frettage is the method of
Q.15
A feather key is generally
Q.16
In leaf springs, the longest leaf is known as
Q.17
The pipe joint mostly used for pipes carrying water at low pressures is
Q.18
Belt slip may occur due to
Q.19
According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as
Q.20
A connecting rod is designed as a
Q.21
The sleeve or muff coupling is designed as a
Q.22
When the fulcrum is in between the load and effort, the lever is said to be of
Q.23
In block brakes, the ratio of shoe width to wheel diameter is taken between
Q.24
In Vickers hardness testing, the pyramid indentor apex is
Q.25
Wahl's stress factor __________ very rapidly as the spring index decreases.
Q.26
In the levers of first type, the mechanical advantage is ________ one.
Q.27
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
Q.28
Stress concentration is caused due to
Q.29
The longitudinal joint in boilers is used to get the required
Q.30
According to Indian standard specifications, 100 H6/g5 means that
Q.31
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)
Q.32
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is
Q.33
When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be
Q.34
The suitable material for belt used in flour mill is
Q.35
When a machine member is subjected to torsion, the torsional shear stress set up in the member is
Q.36
The valve rod in a steam engine is connected to an eccentric rod by
Q.37
A double strap butt joint (with equal straps) is
Q.38
The property of a material which enables it to be drawn into wires with the application of a tensile force, is called
Q.39
The root angle of a bevel gear is equal to
Q.40
The face angle of a bevel gear is equal to
Q.41
In designing thick cylinders, the equation used is
Q.42
The yield point in static loading is __________ as compared to fatigue loading.
Q.43
The buckling load will be maximum for a column, if
Q.44
The coefficient of friction between the belt and pulley depends upon the
Q.45
Which one of the following loading is considered for the design of axles?
Q.46
Which one of the following loading is considered for the design of axles?
Q.47
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be
Q.48
The groove angle of the pulley for rope drive is usually
Q.49
The objective of 'crowning' of the flat pulleys of belt drive is to
Q.50
If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to
0 h : 0 m : 1 s