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DGMS SMU-MINING MACHINERY EXAM PAPER

DGMS SECOND CLASS MACHINERY METAL UNRESTRICTED EXAM PAPER 19 DEC 2021

1) The earth fault current shall be limited to ___ at open cast mlnes for the vollage level from 1100v to 11000v 

A) 100mA

B) 300mA 

C) 750mA

D) 1A

E) 50A

2) The volumetric change of the lluid caused by a reslstance is know as_____

A) Volumetric strain 

B) Compressiblitty

C) Adhesion

D) Cohesion

E) None f these

3) The signaling system voltege shall not exceed_____

A) 12V

B) 15V

C) 24V 

D) 30V

E) 48V

4) The property of fluid by virlus of which it offars resistance to shear is called_____

A) Surface lerision

B) adhesion 

C) cohesion

D) vlscosity

E) none of these

5) What is the exact location of keps

A) at pit bottom 

B) at pit top 

C) at mid set landing

D) at top of the cage

E) none of these

6) Which of the following is an example of strut?

A) Piston rods

B) Connecting rods

C) Side links in forging machines 

D) All of these 

E) None of these

7) The energy which a body possesses by virtue of its pastion or configuration called

A) Potential energy

B) Kinetic energy

C) Sound energy

D) heat energy

E) none of these

8) Viscosity of water in cornparisan to mercury is_____

A) higher

B) lower

C) same

D) higheo’lower depending on temperature

E) none of these

9) ELCB’s (Earth leakage circuit breaker) ere provided on the electrical hand tools for 

A) improved working effecenoy

B) reduced power consumplon

C) safeguard agalnot electricity leakages

D) for improved power factor

E) all of thase

10) In canlitever beam, slope and deffeclion at free end is_____

A) ZORE

B) Maximum 

C) Minimum

D) Cannot be caloulated

E) None of these

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