DMRC PREVIOUS YEAR PAPER

               DMRC PREVIOUS YEAR QUESTION PEPAR WITH ANSWER

1.  Which process is used for super finishing of bores in ferrous and nonferrous metal ?

Ans : Honing

 2. Cast Iron is the product of which one of the below ?

Ans :  Cupola furnace

3) Which among the following is used for holding pipes between dia 50mm and 150mm?

Ans: Chain pipe wrench

 4) Which one of the following universal joints allow positive transsion of power at larger angles

Ans: Universal Coupling

 5) Which type of gears are used to transmit motion between shafts at various angles to each other ?

Ans: Bevel gears

 6) Which type of gear set is used to change rotaty into linear movement and vice versa?

Ans: Rake and Pinion

 7) The purpose of non return valve is to permit water in one of the ways ?

Ans : One way flow

 8) Which one of the below terms refers to the process of removing the internal  defects or stress thar may have caused by treating ?

Ans : Normalizing

 9) Which marking media when used on filed or machine finished surfaces gives very clear lines but takes more time for drying than other media ?

Ans : Prussian blue

 10) What is the least count of a Varnier caliper that has 50 vernier scale divisions ?

Ans : 0.02 mm

 11) The degree of fluidity of a liquid is a property of which one of the following lubricants ?

Ans : Viscosity

 12) Cold chisels are made from which one of the below ?

Ans : High Carbon steel

 13) Idebtify the Nut -- 

 Ans: Lock nut

14) Which among the following is the movement of the honing machine during operation ?

Ans : Vertical and Reciprocating

 15) Whar is the material of Lathe bed ?

Ans : Cast iron

 16) Which gear of set used in a Lathe machine is called ?

Ans : Gear train

 17) In which typw of locking a split pin is used for locking purpose ?

Ans : Castel nut

 18) Clearance between the mating parts is measured by which one of the below ?

Ans : Feeler gauge

 19) What is the composition of soft solder ?

Ans : Lead 50% and Tin 50%

20) For which type of work the Half Round File is used ?

Ans : Curved surface work

 21) Which among the following abrasives is used for lapping of nonferrous metals ? 

Ans : Aluminum Oxide

 22) Which drilling machine has two or more drill machine mounted on the same table which which can either simultaneously or in seqence ?

Ans : Gang drilling machine

 23) The Ring oilling system is also known as which one of the below ?

Ans : Splash feed system

 24) Which one of the following Bearings carry greater radial loads ?

Ans : Roller bearings

 25) Which one of the following bearings carry vertical thrust loads ?

Ans : Thrust ball bearings.