42. If different quantities of water are heated for the same time by the same capacity heaters,
then the temperature developed at the :
(ಗಿ) larger quantity of water will have a higher temperature than the smaller quantity
of water
(B) smaller quantity of water will have a higher temperature than the larger quantity
of water
(C) larger quantity of water will have the same temperature than the smaller
quantity of water
(D) none of the above

48, The meter used to measure the temperature of furnace is :
(ಗ) thermometer (18) thermostat
(0 hygrometer (D) pyrometer

44. Resistors of 5 ohms, 5 kilo ochms, 50 kilo ohms, 5 mega ohms are connected in parallel. Their
equivalent resistance will be very near to :

(A) 4.5 chms (B) 4.5 kilo chms
(C) 45 kilo ohms (D) 4.8 mega ohms
45. A substance that has low retentivity can be used for the manufacture ‏ذاه‎
‎(A) electromagnets (B) permanent magnets
(0) bar magnets (12) paramagnets
46. When the fluorescent lamp is switched ON there is some vibrating sound from the choke.
This is due to loose :
(A) connection in the choke (8) winding turns
(6 core (D) screws in the cover

47. How big is the peak amplitude of a sine-wave with an effective value of 220 volts?

ங்‌ 440V (8) 400V

(© 380V 0) 311%
48, Which type of formula may be used for any type of circuit?

ക്ര യടി (B) ೫೬೫1

(©) ೫2881 7 (D) There is no such formula
49. In a capacitive AC circuit the :

(A) current lags voltage (B) voltage leads current

(C) voltage lags-current (D) voltage is in phase with current
50. In a RL parallel circuit, the opposition to total current is called :

(ಗ) reactance (18) impedance

(0) resistance (D) a vector sum

108/2016 8 A