QUIZ-1

The friction experienced by a body, when in motion, is known as

• rolling friction

• dynamic friction

• limiting friction

• static friction

The point, through which the whole weight of the body acts, irrespective of its position, is known as

• moment of inertia

• centre of percussion

• centre of gravity

• centre of mass

Strain energy is the

• energy stored in a body when strained within elastic limits

• proof resilience per unit volume of a material

• energy stored in a body when strained upto the breaking of a specimen

• maximum strain energy which can be stored in a body

The neutral axis of the cross-section a beam is that axis at which the bending stress is

• maximum

• infinity

• zero

• minimum

Euler's formula holds good only for

• both short and long columns

• weak columns

• short columns

• long columns

Segmental chips are formed during machining

• mild steel

• high speed steel

• high carbon steel

• cast iron

If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is

• vee locator

• diamond pin locator

• conical locator

• cylindrical locator

The angle between the face and flank of the single point cutting tool is known as

• rake angle

• lip angle

• point angle

• clearance angle

A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as

• Carnot cycle

• Diesel cycle

• Otto cycle

• Stirling cycle

The efficiency and work ratio of a simple gas turbine cycle are

• low

• high

• very low

• very high