Online Mechanical Engineering Test - Mechanical Engineering Test - Random

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

In the torsion equation the term J/R is called

The section modulus of a circular section about an axis through its C.G., is

A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension)

The coefficient of discharge is the ratio of theoretical discharge to the actual discharge through an orifice.

Carnot cycle consists of

The volume of air sucked by the compressor during its suction stroke is called

The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called

The space between the two walls of a thermos flask is evacuated because vacuum is a __________ conductor of heat.

Most air cooled condensers are designed to operate with a temperature difference of

In which of the following refrigeration system, waste heat can be effectively used?

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

A rivet is specified by

Manganese is added in low carbon steel to

Which of the following parameters influence the axial feed rate in centreless grinding?

The type of reamer used for reaming soft aluminium or copper, is

The aluminium alloy is used in cylinder blocks because

The portion of a crankshaft which rests on cylinder block is called main journal.

When turning a corner,

In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO, the acceleration of the piston is zero when the crank OC and connecting rod PC are at right angles to each other.