GATE EE 1993 | GATE EE Year Wise Previous Years Questions

GATE EE 1993

MCQ (Single Correct Answer)

-0.3

A metal strain gauge has gauge factor of two, it's nominal resistance is $$120$$ Ohms. It is undergoes a strain of $${10^{ - 5}},$$ the value of change of resistance in response to the strain is

$$240\,$$ Ohms

$$2 \times {10^{ - 5}}\,\,$$ Ohms

$$2.5 \times {10^{ - 3}}\,\,$$ Ohms

$$1.2 \times {10^{ - 3}}\,\,$$ Ohms

GATE EE 1993

MCQ (Single Correct Answer)

-0.6

A $$220/440$$ $$V,$$ $$50$$ $$Hz$$ single phase transformer operates on $$220$$ $$V,$$ $$40$$ $$Hz$$ supply with secondary winding. Then

the eddy current loss and hysteresis loss of the transformer decrease

the eddy current loss and hysteresis loss of the transformer increase

the hysteresis loss of the transformer increases while eddy current loss remains the same

the hysteresis loss remains the same whereas eddy current loss decreases

GATE EE 1993

MCQ (Single Correct Answer)

-0.3

A cumulative compounded long shunt motor is driving a load at rated torque and rated speed. If the series field is shunted by a resistance equal to the resistance of the series field, keeping the torque constant. GATE EE 1993 Electrical Machines - D.C Machines Question 10 English

GATE EE 1993 Electrical Machines - D.C Machines Question 10 English

the armature current increases

the motor speed increases

the armature current decreases

the motor speed decreases

GATE EE 1993

MCQ (Single Correct Answer)

-0.6

Two $$550$$ $$kVA$$ alternators operate in parallel to supply the following loads
$$(i)$$ $$250$$ $$kW$$ at $$0.95$$ power factor lag
$$(ii)$$ $$100$$ $$kW$$ at $$0.8$$ power factor lead one machine is supplying $$200kW$$ at $$0.9$$ power factor lag. The power factor of the other machine must be

$$0.89$$ lead

$$0.95$$ lead

$$0.95$$ lag

$$0.89$$ lag

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