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How many commonly accepted papers are present in the machine design?
Answer: b Explanation: There are 2 commonly accepted papers devised by Heroz et al. They are analytic method and synthesis method.
Answer: b
Explanation: There are 2 commonly accepted papers devised by Heroz et al. They are
analytic method and synthesis method.
See lessWhat is the work of the starter with respect to the mechanical stress?
Answer: b Explanation: The main function of the starter is to prevent the excessive current at the starting. The other work of the starter is to restrict the large mechanical stress from acting on the machines.
Answer: b
Explanation: The main function of the starter is to prevent the excessive current at the
starting. The other work of the starter is to restrict the large mechanical stress from
acting on the machines.
See less.The starter take up metallic resistance when the resistance should not be varied in steps.
Answer: b Explanation: The starter actually picks up either liquid rheostat or metallic resistance during its operation. The starter takes up metallic resistance when the resistance is to be varied in steps
Answer: b
Explanation: The starter actually picks up either liquid rheostat or metallic resistance
during its operation. The starter takes up metallic resistance when the resistance is to be
varied in steps
See lessWhat happens when the starter takes up metallic resistance?
Answer: d Explanation: The starter actually picks up either liquid rheostat or metallic resistance during its operation. The starter takes up metallic resistance when the resistance is to be varied in steps. When taken with resistance steps, the current fluctuated between upper and lower limits
Answer: d
Explanation: The starter actually picks up either liquid rheostat or metallic resistance
during its operation. The starter takes up metallic resistance when the resistance is to be
varied in steps. When taken with resistance steps, the current fluctuated between upper
and lower limits
See lessWhat is the product of the ratio of the current and the useful flux per pole?
Answer: d Explanation: First the product of useful flux per pole due to upper limit current and lower limit current and then the product of useful flux per pole due to lower limit current and upper limit current. On substitution the product of ratio of current and useful per pole is obtained.
Answer: d
Explanation: First the product of useful flux per pole due to upper limit current and lower
limit current and then the product of useful flux per pole due to lower limit current and
upper limit current. On substitution the product of ratio of current and useful per pole is
obtained.
See lessHow many machines are considered in the calculation of the resistance steps?
Answer: b Explanation: There are 3 machines considered in the calculation of the resistance steps. They are starters for dc shunt motors, starters for dc series motors, starters for three phase slip ring induction motor
Answer: b
Explanation: There are 3 machines considered in the calculation of the resistance steps.
They are starters for dc shunt motors, starters for dc series motors, starters for three
phase slip ring induction motor
See lessWhat is the concept of notching operation?
Answer: c Explanation: The process of notching operation occurs In the dc shunt motors. The concept of notching operation means the cutting out the resistance.
Answer: c
Explanation: The process of notching operation occurs In the dc shunt motors. The
concept of notching operation means the cutting out the resistance.
See lessWhat happens in the dc shunt motor when the notching process occurs?
Answer: b Explanation: Notching operation means cutting out the resistance. During the process of notching speed remains constant.
Answer: b
Explanation: Notching operation means cutting out the resistance. During the process of
notching speed remains constant.
See lessThe number of turns of field winding in the motor must be considerably less than the number of turns in the armature winding.
Answer: a Explanation: The number of turns of field winding in the motor must be considerably less than the number of turns in the armature winding. The speed of the machine is irrespective of the supply.
Answer: a
Explanation: The number of turns of field winding in the motor must be considerably less
than the number of turns in the armature winding. The speed of the machine is
irrespective of the supply.
See lessWhat is the relation of the copper loss and brush contacts with the total loss in small dc motors?
Answer: b Explanation: The copper loss and brush contact loss is being compared with the total loss in order to deduce an equation. The copper loss and brush contact loss is 2/3 times the total loss
Answer: b
Explanation: The copper loss and brush contact loss is being compared with the total
loss in order to deduce an equation. The copper loss and brush contact loss is 2/3 times
the total loss
See less