Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'junior Lab Assistant' And exam conducted in the year 2023. And Question paper code was '006/2023'. 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.
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Two lenses of powers +6D ೩೧೮ -20 ೩/6 combined. The focal length of the
combination is
A) .12m 8( .25 م C) .15m 0) .5m
If the input frequency is 50 Hz, what is the output frequency in a full-wave rectifier ?
A) 50 Hz B) 75 Hz C) 100 Hz D) 25 Hz
Which of the following contains the greatest number of molecules ?
A) 190, 8) 1൧0 ©) 19112 0) 191५113
The total number of orbitals in an energy level designated by principal quantum
number n is equal to
A) n-1 8) ೧2೭ ©) 2112 0) 2೧
Which of the following has lowest pH ?
A) 1M HCl B) 0.1M HCl
C) 0.01M HCI D) 0.001M HCI
Which of the following is a secondary cell ?
A) Dry cell B) Nickel-Cadmium cell
C) Mercury cell D) None of these
Smoke is an example of
A) Foam B) Sol C) Gel D) Aerosol
Which among the following element has largest atomic radius ?
A) Na B) Mg ௦) 6 D) Al
An antiseptic sold in the market as perhydrol
A) SO, B) Dettol
C) Phenol D) Hydrogen peroxide
Which ion is required for the coagulation of blood ?
A) Copper B) Calcium
C) Magnesium D) Zinc
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