PHYSICAL DATABASE DESIGN QUIZ

Stress may be defined as

None of these

Force per unit length

Force per unit volume

Force per unit area

TRUE ANSWER : ?
YOUR ANSWER : ?

The strain energy due to volumetric strain

All of these

Is directly proportional to the square of exerted pressure

Is directly proportional to the volume

Is inversely proportional to Bulk modulus

TRUE ANSWER : ?
YOUR ANSWER : ?

For beams breadth is constant,

Depth d 3

Depth d

Depth d 1/M

Depth d M

TRUE ANSWER : ?
YOUR ANSWER : ?

A steel plate d × b is sandwiched rigidly between two timber joists each D × B/2 in section. The steel will be (where Young’s modulus of steel is m times that of the timber).

BD² + mbd³)/4D]

BD² + mbd²)/4D]

BD³ + mbd³)/6D]

BD² + mbd²)/6D]

TRUE ANSWER : ?
YOUR ANSWER : ?

A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is

4W²D3n/d4N

4WD²n/d4N

4W²D3n²/d4N

4W²Dn/d4N

TRUE ANSWER : ?
YOUR ANSWER : ?

A shaft rotating N.R.M. under a torque T, transmits a power

/60 Newton metres/sec

/30 Newton metres/min

/60 Newton metres/min

/30 Newton metres/sec

TRUE ANSWER : ?
YOUR ANSWER : ?

Gradually applied static loads do not change with time their

Direction

Magnitude

Point of application

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The vertical reaction for the arch is

wa/2l

wl/a

wa/l

wa²/2l

TRUE ANSWER : ?
YOUR ANSWER : ?

P = 4π² EI/L² is the equation of Euler's crippling load if

Both the ends are fixed

One end is fixed and other end is free

Both the ends are hinged

One end is fixed and other end is hinged

TRUE ANSWER : ?
YOUR ANSWER : ?

A bar L metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is

W²L/AE

WL/AE

WL/2AE

W²L/2AE

TRUE ANSWER : ?
YOUR ANSWER : ?

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