Related Questions

Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.
A Compressibility
B Molecular weight
C Humidity
D None of these
Three point starter can be used for
A Series motor only
B Shunt motor only
C Compound motor only
D Both shunt and compound motor
A direct on line starter is used: for starting motors
A Up to 5 H.P.
B Up to 10 H.P.
C Up to 15 H.P.
D Up to 20 H.P.
Which of the following happens when star-delta starter is used?
A Starting voltage is reduced
B Starting current is reduced
C Both (A) and (B)
D None of the above
For starting a D.C. motor a starter is required because
A It limits the speed of the motor
B It limits the starting current to a safe value
C It starts the motor
D None of the above
The coils of D.C. motor starter are wound with wire of
A Copper
B Kanthal
C Manganin
D Nichrome
A three point starter is considered suitable for
A Shunt motors
B Shunt as well as compound motors
C Shunt, compound and series motors
D All D.C. motors
In a manual shunt motor starter
A Over load relay is connected in series and no volt relay in parallel with the load
B Over load relay is connected in parallel and no volt relay in series with the load
C Over load relay and no volt relay are both connected in series with the load
D Over load relay and no volt relay are both connected in parallel with the load
It is advisable to avoid line starting of induction motor and use starter because
A It will run in reverse direction
B It will pick up very high speed and may go out of step
C Motor takes five to seven times its full load current
D Starting torque is very high
In a star-delta starter of an induction motor
A Resistance is inserted in the stator
B Reduced voltage is applied to the stator
C Resistance is inserted in the rotor
D Applied voltage per stator phase is 57.7% of the line voltage

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