Kerala PSC Instructor Gr I (Electrical Engineering) 2020 provisional answer key is out. PSC conducted the Instructor Grade-1 (Electrical Engineering) against Cat No: 079/ 2017 on December 02, 2020. Candidates can now download the question paper and provisional answer key pdf from the below-given links.
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Kerala PSC Instructor Gr I (Electrical) 2020
Some of the questions asked in the Instructor Grade-1 (Electrical Engineering) test conducted on December 01, 2020.
- The solution set of the system of equations x – 4y – z = 11, 2x – 5y + 2z = 39,
– 3x + 2y + z = 1 is
A) {– 1, – 5, 8} B) {1, – 5, 8} C) {1, 5, 8} D) {1, 5, – 8} - The area bounded by the curve y = cosx, the x-axis and the lines x = 0 and
x = 2π is
A) 1 B) 0 C) 1/2 D) 4 - . The _____________ of cement is measured in terms of its specific surface which can be determined by various methods out of which Blaine’s air permeability method is quite frequently used.
A) Soundness B) Fineness C) Heat of hydration D) Setting time - Gunter’s chain is _____________ long and consists of 100 links.
A) 66 foot B) 100 foot C) 660 foot D) 10 foot - _____________ is the process of levelling in which the elevations of points are computed from vertical angles and horizontal distances measured in the field, just as the length of any side in any triangle can be computed.
A) Barometric levelling B) Spirit levelling C) Indirect levelling D) Direct levelling - If the independent footing of two columns are connected by a beam, it is called a
A) Strap footing B) Strip footing C) Pile footing D) Isolated footing - Heat addition at constant pressure occurs in
A) Carnot cycle B) Otto cycle C) Diesel cycle D) Stirling cycle - Maximum fuel economy is obtained with
A) Chemically correct mixture B) Lean mixture C) Rich mixture D) None of these - The size of the exhaust valve of an engine in comparison to the suction valve is
A) Less B) More C) Same D) More or less depending on the capacity of the engine - Which one is boiler mounting?
A) Pressure reducing valve B) Economiser C) Steam trap D) Fusible plug - The moderator used in the nuclear power plant is
A) Graphite B) Boron C) Cadmium D) Silver - A 1000 W, 230 V electric kettle is connected in series with another similar kettle and the combination is connected to 230 V supply. The total power drawn by the combination will be
A) 1000 W B) Less than 1000 W C) More than 1000 W D) Zero - The unit of the permittivity is
A) Farad/metre B) Farad – metre C) Farad/(metre)2 D) None of these - The coil span of dc armature winding is made equal to pole switch to
A) Distribute the windings uniformly under different poles B) Obtain a coil span of 180 electrical
C) Ensure the addition of EMFs of consecutive turns D) Obtain a full-pitch winding - Which of the following type of generators does not require equalizers for satisfactorily
for parallel operation?
A) Series B) Under compounded C) Over compounded D) Flat compounded - In a DC motor, unidirectional torque is produced with the help of
A) Brushes B) Commutator C) End plates D) Both A) and B) - A 200 KVA transformer has an iron loss of 1 KW and full load copper loss of 2 KW. The KVA corresponding to maximum efficiency is
A) 200 KVA B) 141.1 KVA C) 100 KVA D) 50 KVA - The all-day efficiency of the transformer depends on
A) Copper loss B) Amount of load C) Duration of load D) Both B) and C) - A 3 phase induction motor is running at a slip of 4% and input to the rotor is 2000 watts. The mechanical power developed in the rotor is
A) 1920 W B) 2000 W C) 1000 W D) 800 W - If the stator frequency and voltage of an induction motor are reduced proportionately, then
A) Locked rotor current is reduced B) Torque developed is increased C) Magnetising current is decreased D) Both A) and B)
Click here to download the Kerala PSC Instructor Gr 1 (Electrical Engineering) 2020, question paper:
INSTRUCTOR GR-1 QUESTION PAPER 2020
Instructor Grade 1 (Electrical Engineering) 2020 Answer Key
- {– 1, – 5, 8}
- 4
- Fineness
- 66 foot
- Indirect levelling
- Strap footing
- Diesel cycle
- Lean mixture
- More
- Fusible plug
- Graphite
- Less than 1000 W
- Farad/metre
- Ensure the addition of EMFs of consecutive turns
- Under compounded
- Commutator
- 141.1 KVA
- Both B) and C)
- 1920 W
- Both A) and B)
Kerala PSC INSTRUCTOR GR-1 2020 ANSWER KEY PDF Download
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