Q. The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T1, and T2 = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact)

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Q. A flange coupling is a type of rigid coupling.

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Q. The strength of the un-riveted plate (P) per pitch length is equal to

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Q. Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

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Q. Wahl's stress factor __________ very rapidly as the spring index decreases.

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Q. For circumferential joint in boilers, the type of joint used is

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Q. In cyclic loading, stress concentration is more serious in

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Q. For a square key made of mild steel, the shear and crushing strength are related as

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Q. According to Rankine's theory, the failure occurs at a point in a member

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Q. The dedendum is the radial distance from the

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Q. In a steam engine, the valve rod is connected to an eccentric rod by means of

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Q. In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

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Q. Which of the following property is desirable in parts subjected to shock and impact loads?

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Q. In block brakes, the ratio of shoe width to wheel diameter is taken between

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Q. Oldham coupling is used to transmit power between two parallel shafts which are slightly offset.

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Q. 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

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Q. When a machine member is subjected to torsion, the torsional shear stress set up in the member is

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Q. If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

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Q. In cylindrical cams, the follower moves

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Q. The included angle for the acme thread is 29°.

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