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What will happen to the value of earth resistance if length of the earth pipe is
increased ?

A) Remain same B) Increases C) Decreases D) Infinity

Which method of cable laying is suitable for congested areas ?
A) Racks in air B) Duct pipes C) Along buildings D) Direct in ground

Where system earthing is done ?
A) Generating station B) Electroplating installation
C) Small industrial installation D) Domestic wiring installation

What is the term for the time taken by a fuse to interrupt the circuit in fault ?

A) Time factor B) Fusing factor C) Cut-off factor D) Fusing current
Which electrical equipment is provided with L series MCB ?

A) General lighting B) Motors

C) Air conditioner D) Halogen lamp

Which rule is used to find the direction of induced emf in D.C. generator ?

A) Cork screw rule B) Right hand palm rule

©) Fleming's left-hand rule D) Fleming’s right hand rule

What is the formula for dynamically induced emf ?

A) BLY volts 8) BL siné volts C) BLVsin@ volts D) BLVcosé volts
What is the name of generator, if its field is connected in parallel with armature ?
A) Shunt generator B) Series generator

C) Compound generator D) Self excited generator

What is the property of wave winding in D.C. generator ?

A) Low current low voltage B) High current low voltage

C) Low current high voltage D) High current high voltage

What is the effect if the shunt field resistance is above critical resistance value in a

D.C. generator ?
A) Output voltage is pulsating B) Output voltage is above normal
C) Generator fails to build up voltage D) Generator builds up voltage normally