Q. A Porter governor is a

View solution

Q. The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the lengm of connecting rod to radius of crank)

View solution

Q. A type-writer constitutes a machine.

View solution

Q. Due to slip of belt, the velocity ratio of the belt drive increases.

View solution

Q. When the sleeve of a Porter governor moves downwards, the governor speed

View solution

Q. When one of the links of a kinematic chain is fixed, the chain is known as a

View solution

Q. The natural frequency of free transverse vibrations of a shaft fixed at both ends and carrying a uniformly distributed load is 0.571/δS , where δS is the static deflection of a shaft fixed at both ends and carrying a uniformly distributed load.

View solution

Q. When brakes are applied to all the four wheels of a moving car, the distance travelled by the car before it is brought to rest, will be

View solution

Q. In a steam engine, the distance by which the outer edge of the D-slide valve overlaps the steam port is called

View solution

Q. In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

View solution

Q. A body in motion will be subjected to coriolis acceleration when that body is

View solution

Q. The rolling of a complete ship side-ways is known as pitching of a ship.

View solution

Q. The frictional torque transmitted by a disc or plate clutch is same as that of

View solution

Q. In a disc clutch, if there are n1 number of discs on the driving shaft and n2 number of discs on the driven shaft, then the number of pairs of contact surfaces will be

View solution

Q. The power of a Porter governor is equal to

View solution

Q. The effect of swaying couple in a locomotive is resisted by the side pressure between the flanges of the tyres of the wheel and the inside of the rails.

View solution

Q. The Klein's diagram is useful to find

View solution

Q. The equation of motion for a single degree of freedom system with viscous damping is . The damping ratio of the system is

View solution

Q. In a mechanism, the fixed instantaneous centres are those centres which

View solution

Q. Which of the following statements regarding laws governing the friction between dry surfaces are correct?

View solution