Which of the following ride on a thin film of oil within a system of bearing
(a) the crankshaft main journals and rod journals (b) compression rings and
oil rings (c) valve stems (d) all of these.
which oil pump requires a pressure relief valve to regulate the output pressure
(a) gear pump (b) rotary pump (c) vane pump (d) all of these.
an oil filter designed for a newer car (a) should never need to be replaced
(b) returns all of the filtered oil to the sump (c) may contain a relief valve that
opens if the filter clogs (d) all of these.

Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.