ISRO Scientist or Engineer Mechanical 2010

Indicates vibration aplitude

Indicates vibration frequency

Indicates mature of vibrations

Only indicates second and above harmonics

The vibrations are minimum

The vibrations are maximum

The vibrations are average

The vibrations are zero

A-4, B-2, C-1, D-3

A-3, B-4, C-2, D-5

A-5, B-4, C-2, D-3

A-3, B-2, C-1, D-5

Maximum at the beginning of the cutting stroke

Maximum at the end of the cutting stroke

Maximum at the middle of the cutting stroke

Minimum at the middle of the cutting stroke

To avoid thermal distortion and cracking

To dissolve surface oxide coatings which have formed prior to brazing

To prevent oxides from forming during the brazing operation on both the base metal and the brazing material

To facilitate the wetting process by reducing the viscosity of the melt

Shapes which are made by difficulty using complex patterns in sand casting

Mass production

Shapes which are very complex and intricate and can’t be cast by any other method

There is nothing like investment casting

Universal milling machine

Plano miller

Planetary milling machine

lathe

Engineer’s square having stock and blade set at $$90^\circ$$

A constant deviation prism having the angle of deviation between the incident ray and reflected ray, equal to $$90^\circ$$

A constant deviation prism having the angle of deviation betweenthe incident ray and reflected ray, equal to $$45^\circ$$

Used to produce interference fringes

A new gauge

An international reference standard

A standard gauge for checking accuracy of gauges used on shop floors

A gauge used by experienced technicians

0.02 mm

0.00 mm

-0.02 mm

0.01 mm