:

36,

34.

38.

39.

2

41.

Climb milling is preferred while machining since :
(ക) the chip thickness increases gradually
(B) it enable the cutter to dig in and start the cut
(C) ண surface finish can be obtained
(D) the specific power consumption is reduced

Two resistors of 80 Q and 120 ഒ are connected in parallel, If the current through 80 ൨
resistor ia 7 A, caleulate the total current flowing through the cireuit :

ಯ 5.6A (7) 15.64
11.64. യ) 1464

The unit of magneto motive force is :
(ಯ) Weber (B) Ampere/metre
(C) Henry (D) Ampere-turn/weber

Three equal impedances are first connected in star across a balanced three phase supply. If
connected in delta across the same supply :

(A) Phase current will be tripled

(B) Phase current will be doubled

(¢) Line current will become one third

(D) Power consumed will increase three fold

The power factor of an alternator is determined by its :
(3) Speed (8) Load
(C) Excitation (D) Prime mover

A synchronous machine is called doubly excited machine because :
(4) Tt can be over excited
(B) It has two sets of rotor poles
(0) Both its rotor and stator are excited
(D) It needs twice the normal exciting current

Temperature compensation of a 18 V zener diode can be achieved by connecting it in :
ക) Paralle] with forward biased Si diodes
(8) Series with reverse biased Si diodes
(C) Series with forward biased Si diodes
(D) Parallel with reverse biased Si diodes

062/2016 8 A