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For the following questions answer them individually
In a $$3\frac{1}{2}$$ digit voltmeter, the largest number that can be read is
9999
0999
1999
5999
In suburban services as compared with urban service
the coasting period is smaller but free running period is longer
the coasting period is smaller
the coasting period is longer
the coasting period and free running periods are same
Quadrilateral speed time curve is used for
goods line service
sub urban service
urban service
main line service
Which of the following motor will give relatively high starting torque
Shaded pole motor
Capacitor start motor
Capacitor run motor
Split phase motor
The current in reverse bias in P-N junction diode may be
between 2A and 5A
few micro or nano amperes
few milli amperes
between 0.2 A and 2A
The repulsion-start induction run motor is used because of
high starting torque
good power factor
high efficiency
minimum cost
Which of the following is non-linear circuit parameter
Transistor
Inductance
Condenser
Wired wound resistor
The B-H curve is used to find the mmf of the section of the magnetic circuit. The section is
vacuum
iron part
air gap
both iron part and air gap
A terminal where three or more branches meet is known as
mesh
node
terminal
loop
For V-curves for a synchronous motor the graph is drawn between:
armature current and power factor
field current and armature current
terminal voltage and load factor
power factor and field current
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