Helix angle

Pressure angle

Pitch lead angle

None of these

**The resistance to fatigue of a material is measured by****A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved…****A single strap butt joint is always in __________ shear.****The condition for maximum power transmission is that the maximum tension in the flat belt should be…****The modulus of elasticity for mild steel is approximately equal to****Two shafts will have equal strength, if****I.S. specifies following total number of grades of tolerances****If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and…****If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making…****The belt slip occurs due to****The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.****The expression 0.175 - 0.841/T is the Lewis form factor for****Stress concentration is caused due to****When the speed of belt increases,****The ultimate strength of steel in tension in comparison to shear is in the ratio of****A double fillet welded joint with parallel fillet weld of length l and leg s is subjected to a tensile…****The application of third type levers is found in****The form factor of a helical gear __________ with the increase in the helix angle.****The resultant axial load on a bolt depends upon****When an open coiled helical compression spring is subjected to an axial compressive load, the maximum…****In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called****The expansion joint is mostly used for pipes which carry steam at __________ pressures.****The minimum number of teeth on the pinion which will mesh with any gear without interference for 20°…****The constant factor in case of R10 series of preferred numbers is****A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as****The ball bearings are, usually, made from****The temperature required for full annealing in hypereutectoid steel is****The design of pin of a rocker arm of an I.C. engine is based on****Which of the following statement is correct?****When two helical springs of equal lengths are arranged to form a cluster spring, then**