A 2.2 kW motor with torque to ampere ratio of 1.27 Nm/A is loaded with following duties for following durations supplied with applied peak voltage of AC 1-ph 325 V and running with rated speed of 1500 rpm, (a) With a load of 10 A for 5 secs, (b) Without load for 5 secs, (c) With load torque 7 Nm for 3 secs and (d) With full load for 3 secs. Calculate the equivalent torque.