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HRC fuse is superior protective device as compared to circuit breaker and relay as far
(^) Electromagnetic stresses are concerned
(B) Thermal stresses are concerned
(0) Both electromagnetic and thermal stresses are concerned

(D) None of the above

Which of the following material has a negative temperature co-efficient of resistance?
(A) Carbon (B) Brass
(0) Copper (D) Aluminium

By inserting reactance in the rotor circuit :
(ಗ) Reduces starting torque as well as maximum torque
(B) Increases starting torque but maximum torque remains unchanged
(C) Increases starting torque as well as maximum torque

(D) Inereases starting torque but maximum torque reduces

In three phase power measurement by two wattmeter method, reading of one wattmeter
found negative. Then the P.F of the load is :

(ക) 0.4 lagging (B) 0.5 lagging

(C) 0.8lagging 0) ताप

Epoxy cable joint is used where

(ക H.T cable joints (B) Heating of the cable is not permitted
(ര Temporary joint (D) ‘T joints only
At the suction stroke in a reciprocating pump, the ———————— valve closes and
valve opens.
(A) Foot, Non return (ए) Non return, Foot
(C) Delivery, Suction (D) Suction, Delivery

Voltage stabilizers having auto transformer in servo stabilizer is of
(ಯ). Core type (B) Shell type
(C) Distributed core type (D) Toroidal type

The ripple factor of a capacitor filter may be decreased by
(ಸಿ) 1607688108 ೫, ⊽ ⊕≱↕⋯∶≖∢⊖∺∂↧∎∐≣⊟↥↙
(C) Increasing C (D) Increasing both RLand C

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