The maximum efficiency of a square threaded screw jack is................, where ø is the angle of friction

An operating characteristic curve is a plot between :

Which of the following is not a part of steam engine?

Consider the following statements:(a) The translatory effect of a couple on a body is zero (b) A couple can be balanced by a couple of opposite sense (c) The moment of a couple about any point is the same Which of these statements are correct?

Cam followers are generally classified according to:1. The nature of its motion 2. The nature of its surface in contact with cam 3. The speed of cam Which of the above statements are correct?

A second order system would be critically damped when damping ratio is :

The order of values of thermal efficiency of Otto, Diesel and Dual cycle when they have equal compression ratio and heat rejection is :

A particle a starts from rest and moving with a constant acceleration covers a distance x, in the third second and xg, in the fifth second. The ratio x/xg is:

A system of masses rotating in different parallel planes is in dynamic balance if the resultant:

High vacuum pressure is usually expressed in:

Knocking tendency in a SI engine reduces with increasing:

A body slides down a smooth inclined plane and takes 4 seconds to reach the bottom. If it starts from rest at the top the time taken to cover 1/4th of distance from top is:

Which of the following iron has maximum tensile strength

A system of masses rotating in different parallel planes is in dynamic balance if the 

The purpose of differential speed on trains is served by:

A projectile has a range R in the gravitational field of earth. Under identical conditions of velocity and acceleration its range on moon will be:

The coordination number of FCC crystal structure is:

Auto-collimator is used to check:

The work input to an air compressor will be least if the exponent "n" in the compression process pu" = constant equals:

Two particles with masses in the ratio 1 : 4 are moving with equal kinetic energies. The ratio of their linear momentum will be in the ratio :

Monal metal is an alloy of:

Which one of the following is an extensive property of a thermodynamic system?

Volumetric efficiency of a reciprocating compressor increases with:1. Increase in clearance ratio 2. Decrease in delivery pressure 3. Multi staging Which of the statements given above are correct?

For perfectly elastic bodies, the value of coefficient of restitution is :

A screw thread is defined by its :

The gas with highest value of adiabatic index is :

The use of regenerator in a gas turbine cycle increases:

A key connecting a flange coupling to a shaft is likely to fail in :

If the thermal efficiency of a carnot engine is 40%, then coefficient of performance of a refrigerator working within the same temperature limits is

Propulsion efficiency of a jet engine is given by:Where Vj and Va are jet velocity and flight velocity relative to aircraft

Toughness of a material signifies :

Which category of the following chains is not used for power transmission?

An engine operates between temperature limits of 900 K and T, and another engine operates between T, and 400 K. If both the engines are equally efficient T, will be:

Consider the following nuclear fuels :1.;Pu - 2392. U-235 3. U-2334. Th - 232 Which is the correct sequence of above nuclear fuels in order to increase in half life?

The impact strength is expressed in :

The gear size is generally specified by :

During Joule-Thomson expansion the property which remains constant is :

Falling drops of water is spherical due to :

Modulus of resilience of a material is :

Two closed coil helical springs made from the same diameter wire are wound on 2.5 cm diameter core and the other on 1.25 cm diameter core. If each spring has the same number of coils then the ratio of their spring constants will be :

Which of the following gaseous fuels does not have different higher and lower calorific values?

A rectangular water tank has its length, breadth and height ratio 2 :1:2. The ratio of the hydrostatic force at bottom to any larger vertical surface is:

A thin cylindrical pressure vessel has been subjected to internal pressure. The ratio of longitudinal to hoop stress is :

In deep drawing of sheets, the limiting draw ratio depends on:

In which one of the following materials, the heat energy propagation due to conduction heat transfer will be minimum:

A metallic body weighs 80 N in air and 60 N in water. The relative density of the body is:

The rate of change of bending moment is equal to -- at the section.

A composite wall of a furnace has two layers of equal thickness having thermal conductivities in the ratio 3:2. What is the ratio of temperature drop across two layers?

A block of ice floats on the surface of water contained in a vessel. How the water level will change when the snow melts?

A uniformly distributed load w in KN/m is acting over the entire length of a 3 m long cantilever beam. If the shear force at the mid-point of cantilever is 6 kN the value of w is:

The brazing process is carried out in the temperature range (degree Celsius) :

The diameter of a shaft is increased from 30 mm to 60 mm, all the other conditions remain unchanged. How many times its torque carrying capacity increases?

In machining aluminium parts the chips produced will be in the form of :

The emissive power is multiplied by -- to get the intensity of normal radiation for a unit surface.

The value of momentum correction factor for a laminar flow through a circular pipe is approximately:

If a closed coil helical spring absorb 30 N-mm of energy while extending by 5 mm, its stiffness is:

Which dimensionless number has a significant role in forced convection?

The pressure drop in a pipe flow is directly proportional to the mean velocity. It suggests that:

Which among the following constitutes a higher pair?

Which of the following types of layouts is used for the manufacture of huge aircrafts?

Air refrigeration cycle is usually employed in :

Efficiency of a pelton wheel is maximum if the ratio of jet velocity to tangential velocity of wheel is

The number of inversions for a slider crank mechanism is:

Bin cards are used in keeping record of:

In the window air conditioner the expansion device used is :

Specific speed of an impulse turbine ranges from:

Fan belt in an automobile is:

The project duration in CPM can be reduced by crashing:

When a steam flows through a throttle valve and remains wet at exit:

If a pump NPSH requirements are not satisfied then 1. It will not develop sufficient head to raise water 2. Its efficiency will be low 3. It will deliver very low discharge 4. It will be cavitated Which of the above statements are correct?

For a gear the product of circular pitch and diametral pitch is :

Which one of the following is not a solution method of transportation problems?

Which of the following is not a water tube boiler?

Which of the following is not a positive displacement pump?

Benaras Sanskrit College was started in 1791 by :

The brain behind the birth of Aligarh Muslim University was :

Who recommended the Western system of Education in India ?

S.N.D.P. (Sree Narayana Dharma Paripalana) Yogam was started in :

The Dalits and Tribals in India were named for the first time as scheduled castes and scheduled Tribes by the :

Printing press was introduced in India by :

Shanar Women were allowed to wear upper Jackets by the order of :

Gandhiji commended as "Miracle of Modern Times" about :

Among the following who has no 'Mahakavya' to his credit :

The Malayali Memorial was against :

Who is known as "Kerala Kalidasa"?

The Right to Information Act came into effect on :

As per the 'Right to Information Act' the first application was given to

The Preamble of the Constitution of India was adopted by the Constituent Assembly on

The Preamble of the Constitution of India was designed and decorated by :

National Rural Employment Guarantee Act 2005 offers:

The founder of 'Bhashaposhini' was :

The 'Jhansi Rani of Travancore' was:

'Athma Kadhakkoru Aamukham' is the autobiography of :

The British East India Company lost its monopoly of trade in India by