Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'VOCATIONAL INSTRUCTOR IN REFRIGERATION AND AIR CONDITIONING VHSE' And exam conducted in the year 2016. And Question paper code was '090/2016'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
72.
78.
74.
75.
76.
7.
78.
79.
80.
81.
When the supply voltage for an induction motor is reduced, which of the following will
increase?
(4) full load current
(18) percentage of slip
(0 maximum temperature rise on full load
(D) all of the above
Transformer ratings are usually expressed in terms of :
(வ kWh (B) kVA
(0) “ലട D)y kW
The rotor of the alternator has :
(ക two slip rings (B) noslip rings
(©) छिप slip rings (D) none of the above
A single phase capacitor start motor will take starting current nearly :
(A) twice the full load current (28) same as full load current
(C) three times the full load current (D) none of the above
Dielectric is must in :
(A) EDM process (B) ECM process
(C) Ultrasonic machining (D) Ion beam machining
Which of the following doping will produce p-type semiconductors :
(ಯ) germanium with phosphorous (18) germanium with indium
(0 silicon with indium (D) none of the above
A thermionic cathode is heated to :
(A) attract electrons (B) emit electrons
(¢) remain electrons (D) none of the above
A zener diode is operated with :
(A) forward bias (8) reverse hias
(0 both (A) and (B) (D) mnone of the above
An oscillator circuit is mainly :
(8) AC to DC converter 18) DC to DC converter
(C) DC to AC converter (D) None of the above
Nana Sahib led (00 1 War of Indian Independence (1857) from :
(ಗಿ) Jhansi (B) Lucknow
)0 Meerut (7) Kanpur
090/2016 12 A
