According to Indian standard specifications,H6/g5 means that the

A screw will be self locking, if

In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

The value of stress concentration factor depends upon

In a flange coupling, the thickness of flanges is taken as one-half the diameter of shaft.

A screw will be self locking, if

The resistance to fatigue of a material is measured by

The bell crank levers used in railway signalling arrangement are of third type levers.

When a nut is tightened by placing a washer below it, the bolt will be subjected to

In an ordinary bolt, the effect of the impulsive loads applied axially is concentrated on the cross-sectional area at the root of the threads.

The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

The surface finish factor for a mirror polished material is

A connecting rod is four times strong in buckling about Y-axis than about X-axis.

The rivet head used for boiler plate riveting is usually

The taper on cotter varies from

A connecting rod is designed as a

For unequal width of butt straps, the thickness of butt straps are

The maximum shear stress theory is used for

When spring index increases, the value of Wahl's stress factor

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)

A locking device extensively used in marine type connecting rod ends is a

A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal isN/mm², then the thickness of the metal required for making the pipe will be

When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

The radial distance of a tooth from the pitch circle to the top of the tooth is called

A localised compressive stress at the area of contact between two members is known as

The ratio of endurance limit in shear to the endurance limit in flexure is

When two helical springs of equal lengths are arranged to form a cluster spring, then

A sliding bearing which operates without any lubricant present, is called

For low and moderate speed engines, the cam follower should move with

The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that

The period during which the cam follower remains at rest, when cam moves, is known as

In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

A single strap butt joint is always in __________ shear.

The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that

Which of the following screw thread is used for power transmission in one direction only.

The cross-section of the arm of a bell crank lever is

The period during which the cam follower remains at rest, when cam moves, is known as

A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)

A tangent key is provided in pairs at right angles and each key is to withstand torsion in one direction only.

When the speed of belt increases,

A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

In a gear, having involute teeth, the normal to the involute is a tangent to the

The metal suitable for bearings subjected to heavy loads is

The lower deviation is the algebraic difference between the

For a shaft diameter ofmm, the number of bolts in a marine flange coupling should be

The material used for brake lining should have __________ coefficient of friction.

Euler's formula for a mild steel column is not valid if the slenderness ratio is

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

A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as hollow saddle key.

Which of the following statement is correct ?