Rajasthan Junior Scientific Assistant Documents 2019 Paper

RSMSSB Junior Scientific Assistant Documents Paper 2019
Date of Exam – 23r March 2019

Power transmission from lead screw to carriage during the cutting the screw thread is done by
(a) Gear train
(b) Half Nut
(c) Pulley Drive
(d) Chain Drive

Combination chuck jaws may be operated as
(a) Independently
(b) Together
(c) Either independently or together
(d) None of these

A chuck is attached to
(a) Lathe Spindle
(b) Lathe Apron
(c) Lathe Tool post
(d) Lathe Bed

Filament of Bulb is made up of
(a) Tungsten
(b) Chromium
(c) Vanadium
(d) Cadmium

Which is the most mellabel material?
(a) Gold
(b) Silver
(c) Lead
(d) Iron

Which one of the following compounds has less carbon content?
(a) Cast Iron
(b) Pig Iron
(c) Wrought iron
(d) High carbon steel

The ability of a material to withstand bending without fracture is known as
(a) Mechanical strength
(b) Stiffness
(c) Toughness
(d) Ductility

To increase the corrosion resistance of steel
(a) Vanadium is added as an alloying element
(b) Chromium is added as an alloying element
(c) Nickel is added as an alloying element
(d) Copper is added as an alloying element

Movement of plunger is converted into rotary motion in a Dial test indicator by
(a) Spur gear train
(b) Helical gear train
(c) Rack and pinion
(d) None of these

The dial test indicator shows the measurement as
(a) the actual size of the component
(b) the difference between the two steps of 5 mm
(c) the manified small varations in sizes through a pointer
(d) the direct reading of the dimension