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Fresh sewage may become stale in

	six hours.
	one hour
	two to three hours
	three to four hours

three to four hours

For the steel member exposed to weather and accessible for repainting, the thickness of steel should not be less than (excepting the webs of Indian Standard rolled steel joists and channels).

	6mm
	8mm
	4mm
	10mm

6mm

Stock rails are

	parts of crossing
	laid between heel of switch and nose of crossing.
	fitted against check rails
	fitted against tongue rails

fitted against tongue rails

When cream is separated from milk, density of milk

	can no be said
	remain unchanged
	increases
	decreases

increases

A fictitious outward force on a particle rotating about an axis is :

	Coriolis force
	tangential force
	centrifugal force
	centripetal force

centrifugal force

In a stationary wave every particle performs

	a S.H.M. of constant amplitude
	a S.H.M. at all points of the medium
	a S.H.M. at all points except the antinodes points
	a S.H.M. at all points except nodal points

a S.H.M. at all points except nodal points

The term used to designate electrical pressure is:

	current
	conductance
	voltage
	resistance

voltage

Cooking some thing on a hill take long time than in the plain because

	humid air on the hill takes away the heat so it takes long time to cook
	on the hill atmospheric temperature is low so lot of heat goes to the atmosphere so it takes long time to cook
	due to the atmospheric pressure on the hill boiling point of water rises and takes long time to cook
	on the hill atmospheric pressure is low so water boils at lower temperature so it takes long time to cook

on the hill atmospheric pressure is low so water boils at lower temperature so it takes long time to cook

In order to completely specify angular displacement by a vector, it must fix

	All the options
	direction of the axis of rotation
	sense of angular displacement
	magnitude of angular displacement

All the options

In order for an output to swing above and below a zero reference, the op-amp circuit requires:

	a wide bandwidth
	zero offset
	a resistive feedback network
	a negative and positive supply

a negative and positive supply

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