Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
Concept drill

starting torque

GATE Electrical Engineering · Induction Motor · 1995-2025

15
PYQs
80%
keyed
0
elite explanations
11
years appeared

Study anchor

Source-book anchor pending for this concept.

Practice action

Start latest PYQ

PYQs in this concept

All concepts →
2025 Q45

A 3-phase, 400 V, 4 pole, 50 Hz star connected induction motor has the following parameters referred to the stator: R = 1Ω, X_s = X'_r = 2Ω Stator resistance, magnetizing reactance...

mediumanswer key
2024 PYQ

A 3-phase star connected slip ring induction motor has the following parameters referred to the stator: $R_s = 3\, \Omega,\; X_s = 2\, \Omega,\; X_r' = 2\, \Omega,\; R_r' = 2.5\, \...

medium
2021 PYQ

An 8 pole, $50 \mathrm{~Hz}, 3$ phase, slip-ring induction motor has an effective rotor resistance of $0.08 \Omega$ per phase. Its speed at maximum torque is 650 rpm . The addition...

mediumbasic explanation
2015 PYQ

A 220 V, 3-phase, 4-pole, 50 Hz inductor motor of wound rotor type is supplied at rated voltage and frequency. The stator resistance, magnetizing reactance, and core loss are negli...

medium
2008 PYQ

A $$400$$ $$V,$$ $$50$$ $$Hz$$, $$4$$ pole, $$1400$$ $$rpm$$, star connected squirrel cage induction motor has the following parameters referred to the stator: $$R = 1.0\,\Omega ,{...

mediumanswer key
2007 PYQ

A three-phase squirrel cage induction motor has a starting torque of $$150\% $$ and a maximum torque of $$300\% $$ with respect to rated torque at rated voltage and rated frequency...

mediumanswer key
2007 PYQ

A three phase squirrel cage induction motor has a starting current of seven times the full load current and full load slip of $$5\% $$ If an auto-transformer is used for reduced vo...

mediumanswer key
2007 PYQ

A three phase squirrel cage induction motor has a starting current of seven times the full load current and full load slip of $$5\% $$ If a star-delta starter is used to start this...

mediumanswer key
2007 PYQ

A three phase squirrel cage induction motor has a starting current of seven times the full load current and full load slip of $$5\% $$ If a starting torque of $$0.5$$ per unit is r...

mediumanswer key
2006 PYQ

A $$3$$ phase, $$4$$ pole, $$400$$ $$V,$$ $$50$$ $$Hz,$$ star connected induction motor has following circuit parameters $${r_1} = 1.0\Omega ,\,{r_2} = 0.5\Omega ,$$ $${\mkern 1mu}...

mediumanswer key
2005 PYQ

A three-phase cage induction motor is started by direct-on-line (DOL) switching at the rated voltage. If the starting current drawn is 6 times the full load current, and the full l...

easyanswer key
1999 PYQ

Starting torque can be obtained in the case of a single phase induction motor with identical main and auxiliary windings by connecting

easyanswer key
1999 PYQ

The following starting method for an induction motor is inferior view of the poor starting torque per ampere of the line current drawn:

easyanswer key
1996 PYQ

An induction motor having full load torque of $$60$$ $$Nm$$ when delta-connected develops a starting torque of $$120$$ $$N$$-$$m.$$ For the same simply voltage, if the motor is cha...

easyanswer key
1995 PYQ

An inverter capable of supplying a balanced three - phase variable voltage variable frequency output is feeding a three - phase induction motor rated for $$50$$ $$Hz$$ and $$440V.$...

mediumanswer key