123/2016

33. Two spur gears have 40 and 120 teeth respectively. The pinion rotates at

35.

37.

38,

39.

40.

1200 rpm and transmits a torque of 20 Nm. The torque transmitted by gear is
A) 80 Nm B) 30 Nm
C) 40 Nm D) 60 Nm

Misrun is a casting defect which occurs due to

A) Very high pouring temperature of the molten metal
B) ശി of the molten metal

C) Absorption of gases by the liquid metal

D) Improper alignment of the mouild flasks

Which of the following arc welding process does not use consumable electrode ?
A) GTAW B) GMAW
C) SAW D) None of these

A 500 kVA transformer has full load efficiency of 95% at UPF. It gives the same
efficiency at 60% of full load and at UPF. The iron loss of the transformer is
A) 10.35 kW B) 9.87 kW C) 9.08 kW D) 10.71 kW

Leakage flux in an induction motor is the flux that

A) Links stator and rotor windings

B) Leaks through the machine

C) Links stator winding or the rotor winding but not both
D) Links none of the windings

Itis desired to have a constant direct current through an ideal inductor, the nature of
the voltage source must be

A) Constant voltage B) Linearly increasing voltage
C) Exponentially increasing voltage D) An ideal impulse

A filament bulb rated at 500 W, 100 V is to be connected in series with capacitance

across 220 V, 50 Hz supply. What will be the value of the capacilor such that the
voltage aci the bulb and the power consumed by the bulb are according to the
rating of the bulb ?

A) 78 யீ 8( 81 ‏عير‎

‎D) 86 uF‏ عير مہ رہ

‎1೧ delia to star transformation, if the three elements of the delta connection are scaled
by a factor ‘m’, m > 0, the elements of the corresponding star equivalent will be
scaled by a factor of

‎ಹ) ಗ 8) +

‎C) D) m

‎2

‎

‎