A thermal overload relay is provided in a starter to protect the motor against:
The Primary reason for D.C. motor Preferred over A.C. motor
The minimum dielectric stress in a cable is at
Setting up date for completing each milestone is called_______
Total electrical degrees for a 4 pole (a) (c) machine is equal to
What is the term, if an article is purchased?
As technology advances, the way we work shall -----------
Which gate is known as the universal gate?
Squirrel-cage induction-motor has: (
Buchholz relays are used on
A man bought a lamp for Rs 100 and sold it for Rs 120. How much profit did he make? What is the profit percentage?
In a 3-phase induction motor started by DOL starter the short circuit current is protected by......
The starting torque of a squirrel cage induction motor is low because of:
The fractional slip of an induction motor is the ratio of
What is the value of x if x-y=6 and x+y=8
What is the function of a transformer?
A three point starter is considered suitable for
The load of the electrical circuit is that part which:
In a 3-phase induction-motor started by a (d)O.L. starter, protection against short circuit is given by the:
Trying new things and finding new ways to do old things is called___________
What is the unit of strain?
Which of the following is not a resource?
What is the value of any number raised to the power of 0?
Which one of the following 3-phase motors is NOT self starting?
------------- safety is very important. All companies need to incorporate -------------- in their workspaces.
The Government of India promotes apprenticeship through __________
The motor suitable for loads where constant speed is required is
What is the ratio of change in length to original length?
When a person is naturally good at doing something, it is his/her___________
How does a logic gate function?
On switching 'ON' the starter, the magnetic contractor vibrates heavily. The possible cause is
The number of stator poles produced in the rotating magnetic field of a 3-phase induction motor having three slots per pole per phase is
In a three phase induction motor, the cage bars of the rotor are arranged in an offset pattern to the axis of rotation in order to prevent...
Calculate slip of an induction motor if it has 4 poles, 50Hz, rotor speed is 1400 rpm.
The maximum valve of torque angle in a synchronous motor is ...... degrees electrocal
A 6 pole, 50 Hz, 3 phase induction motor has a full load speed of 950 R.P.M. At half load, its speed would be
What is the value of x if 13+x =20?
The number of cycles a wave completes in one second is called?
The reason of drawing high current at the time of starting by an induction-motor is:
A --------------- is one of the ways to reach your ----------------- goal.
It is advisable to avoid the use of a (d)O.L. starter for starting an induction-motor having 5 H.P. capacity because
The unit of resistance is
In an induction-motor, the fractional slip(s) is given by the expression
The work undertaken by a person for a period of time is called______
A squirrel cage motor of above 3 H.P. should not be started by a D.O.L. starter because:
In a 3-phase induction motor, the rotor field rotates at synchronous speed with respect to
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