The positive and negative sequence impedance of a transmission line are

DGVCL Exam Paper (11-12-2011)
The positive and negative sequence impedance of a transmission line are

Equal

Zero

Infinite

Different

Equal

Zero

Infinite

Different

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Split phase motor

Capacitor start capacitor run motor

Capacitor start motor

Universal motor

Split phase motor

Capacitor start capacitor run motor

Capacitor start motor

Universal motor

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DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

Eliminate hunting and provide adequate starting torque

Reduce winding losses

Eliminate losses on account of fair friction

Reduce bearing friction

Eliminate hunting and provide adequate starting torque

Reduce winding losses

Eliminate losses on account of fair friction

Reduce bearing friction

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DGVCL Exam Paper (11-12-2011)
DC series motors are best suited for traction work because

Torque and speed are inversely proportional to the square of the armature current

Its torque is proportional to the square of the armature current and speed is inversely proportional to torque

Its torque is proportional to the square of the armature current and speed is directional proporational to torque

Torque and speed are proportional to the square of the armature current

Torque and speed are inversely proportional to the square of the armature current

Its torque is proportional to the square of the armature current and speed is inversely proportional to torque

Its torque is proportional to the square of the armature current and speed is directional proporational to torque

Torque and speed are proportional to the square of the armature current

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DGVCL Exam Paper (11-12-2011)
Different computers are connected to a LAN by a cable and a

Special wires

Telephone line

Interface card

Modem

Special wires

Telephone line

Interface card

Modem

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DGVCL Exam Paper (11-12-2011)
All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work?

AC

Negative cycle of sine wave

Positive cycle of sine wave

DC

AC

Negative cycle of sine wave

Positive cycle of sine wave

DC

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are

DGVCL Exam Paper (11-12-2011) The motor used in celling fans is

DGVCL Exam Paper (11-12-2011) The purpose of embedding the damper winding in the pole face of a synchronous motor is to

DGVCL Exam Paper (11-12-2011) DC series motors are best suited for traction work because

DGVCL Exam Paper (11-12-2011) Different computers are connected to a LAN by a cable and a

DGVCL Exam Paper (11-12-2011) All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work?

DGVCL Exam Paper (11-12-2011)
The positive and negative sequence impedance of a transmission line are

DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

DGVCL Exam Paper (11-12-2011)
DC series motors are best suited for traction work because

DGVCL Exam Paper (11-12-2011)
Different computers are connected to a LAN by a cable and a

DGVCL Exam Paper (11-12-2011)
All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work?