महाराष्ट्र अभियंता सेवा गट ब पूर्व परीक्षा २०१०

A. it is faster

B. it is TTL compatible

C. it has better noise immunity 

D. it has better drive capability

A. AND 

B. EX-OR

C. OR

D. NAND

A. lumen metre

B. lux 

C. foot candle

D. candela

A. 0999 

B. 1999

C. 4999

D. 9999

A. zero 

B. V/L

C. V/R

D. VL/R

A. 475 W

B. 500 W

C. 525 W

D. None of the above

A. P and Q

B. P and V 

C. Q and V

D. P and &

A. Silicon alloyed iron cores

B. Amorphous metal cores 

C. Iron core

D. None of the above

A. percentage impedances should be equal

B. turns ratio should be exactly equal

C. polarities must be properly connected

D. KVA rating should be equal

A. greater than its surge loading

B. less than surge loading

C. equal to surge loading

D. None of the above is necessary

A.

B.

C.

D.

A. more starting torque

B. more starting current

C. reduced starting current

D. smooth acceleration

A. the load factor and diversity factor should be low

B. the load factor should be low but diversity factor should be high

C. the load factor should be high but diversity factor should be low 

D. the load factor and diversity factor should be high

A. 210 V

B. 70 V

C. 50 V

D. 230 V

A. Hysteresis loss

B. Eddy current loss 

C. Mechanical loss

D. Temperature rise

A. the field winding must be replaced

B. the armature connection must be reversed

C. the field winding connection must be reversed

D. field winding must be excited by low voltage d.c. supply

A. 0.75

B. 0.375

C. 1.33

D. None of the above

A. load angle 8 and power factor angle both decrease 

B. 8 and both increase

C. 8 increases but decreases

D. 8 decreases but increases

A. load is unbalanced

B. load is balanced

C. 3-phase load is connected to source through 3-wires

D. 3-phase load is connected to source through 4-wires

A.

B.

C.

D.