Q. When two links are connected by a pin joint, their instantaneous centre lies

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Q. When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

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Q. The periodic time of one oscillation for a simple pendulum is

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Q. The relation l = (j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to

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Q. According to law of gearing, the common normal at the point of contact between a pair of teeth must always pass through the pitch point.

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Q. The motion between a pair which takes place in __________ is known as incompletely constrained motion.

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Q. The direction of linear velocity of any point on a link with respect to another point on the same link is

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Q. The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the centre of gravity is equal to the radius of gyration of the body about its centre of gravity.

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Q. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be

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Q. The unbalanced force due to reciprocating masses

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Q. The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

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Q. In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from

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Q. A kinematic chain is known as a mechanism when

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Q. When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

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Q. There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

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Q. The velocity of a body moving with simple harmonic motion is __________ at the mean position.

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Q. A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2 L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

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Q. If the pressure angle is __________ , a reciprocating follower will jam in its bearings.

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Q. The D-slide valve is also known as

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Q. When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a

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