Kerala PSC Previous Years Question Paper & Answer
Page:12
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Instrument Mechanic' And exam conducted in the year 2023. And Question paper code was '158/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
Correct Answer:- Option-A
Question59:-The accuracy of dead weight tester is affected by
1. Friction force between the piston and cylinder.
Il. Uncertainity of the value of affective area of the piston.
Ill. Uncertainity of the value of gravitational constant.
A:-I and Il
B:-Il and Ill
6:- ۱۱۱
ம: 111
Correct Answer:- Option-C
Question60:-What is the purpose of filling glycerin in gauge?
A:-Decrease pressure
B:-Reduce vibrations
C:-Increase pressure
D:-Improve accuracy
Correct Answer:- Option-B
Question61:-Choose the correct statement(s) regarding Ultrasonic flow meters.
1. They offer no obstruction to the flow
Il. There are no moving parts
Ill. They can be used for bidirectional flow
A:-I and Il
B:-Il and Ill
6:- Ill
0:-1, || ۱۷۱
Correct Answer:- Option-D
Question62:-Which is the positive displacement flow meter?
A:-Variable area flow meter
B:-Turbine flow meter
C:-Nutating disc meter
D:-Venturi meter
Correct Answer:- Option-C
Question63:-Reynolds number
A:-Increases with increase in average velocity of liquid
B:-Decreases with increase in absolute viscosity of liquid
C:-Increases with increase in density of flowing liquid
D:-All of the above
Correct Answer:- Option-D
Question64:-The volume of fluid that is passing through a given cross sectional area