വനങ്ങളുടെ സംരക്ഷണവുമായി ബന്ധെപ്പെട്ടു 1983 -ൽ കർണാടകത്തിൽ ആരംഭിച്ച പ്രസ്ഥാനം?

ശൂന്യതയിൽ പ്രകാശത്തിന്റെ വേഗത എത്ര ?

1/2 + 2/3 + 3/4 + 5/6 എന്നിവയുടെ തുകയെന്ത്?

1 volt is equal to

The resistance of a conductor increases as its

A 3 phase load is balanced, if all the 3 phases have the same

Candela is the unit of :

Kirchoffs laws are valid for

In a lead acid battery, level of electrolyte should be

Electromagnetic torque and speed are in opposite directions in case of

If the voltage and current are out of the phase by 90°; the power is

Neon gas in sodium vapour lamp :

An electric bulb rated 220 V is connected to 220 V, 5Hz source, then the bulb :

A closed path made by several branches of network is known as :

An inductor stores energy in :

Lenz's law is a consequence of the law of conservation of :

The form factor of d.c. supply voltage is always

Damper windings are provided in synchronous machines to

The speed of a d.c. motor is

Which test can be used to determine the no load losses of a shunt motor ?

Select the wrong statement from below, which is the essential condition for parallel operation of two or more transformers.

Distribution transformers are usually designed to have maximum efficiency

The major disadvantage, with solar cells for power generation is :

The type of d.c. generator used for arc welding purposes is

Class 11 insulation is normally used in :

The increase in resistance due to non uniform distribution of current in a conductor is known as :

For moving iron instruments, which statement below is not correct ?

In a delta connected circuit, the relationship between line and phase voltage of a delta connected circuit is given by

In the measurement of 3 phase power by 2 wattmeter method if 2 wattmeter readings are equal, the power factor of the circuit is :

Oil in transformer is used as :

The pole and pole shoes of a synchronous machine are laminated in order to reduce :

Economiser in a boiler is used to :

In a ACSR conductors, steel wire is used for

For repetitive type projects, the mostly used network technique is

In quality system, which is the model for quality assurance in design production, installation and servicing ?

When the relative permeability of a material is slightly less than 1, it is called a

Transportation method is

In induction heating, which of the following is of high value ?

The method of heating used for non conducting material is

The power factor in a transformer

The advantage of salient poles in an alternator is

In which of the following motors, the slater and rotor magnetic fields rotate at the same speed :

In which method of starting a motor, the starting current is maximum ?

One lux is same as

Which of the following materials has the highest permeability ?

In performing the short circuit test of a transformer

In a d.c. machine, armature emf is

An electric field can deflect

PERT is :

Mutual inductance between two coils can be decreased by :