GATE 2002 Mechanical Engineering

$$BUE$$ is formed while machining

Ductility of material with work hardening

A copper tube of $$20$$ $$mm$$ outer diameter, $$1$$ $$mm$$ thickness and $$20$$ $$m$$ long (Thermal conducti-vity$$ = 400$$ $$W/mK$$) is carrying saturated steam at $${150^ \circ...

The hardness of a grinding wheel is determined by the

The minimum number of teeth on the pinion to operate without interference in standard full height involute teeth gear mechanism with $${20^ \circ }$$ pressure angle is

Arrivals at a telephone booth are considered to be Poisson, with an average time of $$10$$ minutes between successive arrivals. The length of a phone call is distributed exponentia...

The time taken to drill a hole though a $$25$$ $$mm$$ thick plate with the drill rotating at $$300$$ $$rpm$$ and moving at a feed rate of $$0.25$$ $$mm$$/revolution is

Machining of complex shapes on $$CNC$$ machines requires

A lead screw with half nuts in a lathe, free to rotate in both directions has

A furniture manufacturer produces chairs and tables. The wood-working department is capable of producing $$200$$ chairs or $$100$$ tables or any proportionate combinations of these...

Which of the following arc welding processes does not use consumable electrode

Hot rolling of mild steel is carried out

If $$'x'$$ is the distance measured from the leading edge of a flat plate, then laminar boundary layer thickness varies as

An item can be purchased for Rs.$$100.$$ The ordering cost is Rs.$$200$$ and the inventory carrying cost is $$10\% $$ of the item cost per annum. If the annual demand is 4000 units...

A static load is mounted at the center of a shaft rotating at uniform angular velocity. This shaft will be designed for

Trepanning is performed for

The value of Biot number is very small (less than $$0.1$$), when

What is the value of the view factor for two inclined flat plates having common edge of equal width, and with an angle of $$20$$ degrees?

The efficiency of superheat Rankine cycle is higher than that of simple Rankine cycle because

A Carnot cycle is having an efficiency of $$0.75.$$ If the temperature of the high temperature reservoir is $${727^ \circ }C,$$ what is the temperature of low temperature reservoir...

What is the speed of sound in Neon gas at a temperature of $$500$$ $$K$$ (Gas constant of Neon is $$0.4210$$ $$kJ/kg$$-$$K$$)?

A tube of $$32mm$$ outside diameter was turned on a lathe and the following data was obtained Rake angle $$=35deg,$$ Feed rate $$=0.1mm/rev$$ Cutting force $$=2000N,$$ Cutting spee...

A regression model is used to express a variable $$Y$$ as a function of another variable $$X.$$ this implies that

A project consists of three parallel paths with mean durations and variances of $$(10,4), (12,4)$$ and $$(12,9)$$ respectively. According to the standard $$PERT$$ assumptions, the...

A regression model is used to express a variable $$Y$$ as a function of another variable $$X.$$ This implies that

In blanking operation the clearance is provided on

The temperature of a carburizing flame in gas welding is _______ that of a neutral or an oxidizing flame.

Large speed reductions (greater than $$20$$) in one stage of gear train are possible through

Flow separation in flow past a solid object is caused by

For the same inlet and outlet temperatures of hot and cold fluids, the Log mean temperature Difference $$(LMTD)$$ is

If there are $$'m'$$ physical quantities and $$'n'$$ fundamental dimensions in a particular process, the number of non-dimensional parameters is

The properties of mercury at $$300K$$ are : density $$ = 13529kg/{m^3},$$ $${C_P} = 0.1393$$ $$kJ/kgK,$$ dynimic viscosity $$ = 0.1523\,\, \times \,\,{10^{ - 2}}\,\,N - s/{m^2}$$ a...

The primary purpose of a sprue in a casting mold is to

In centrifugal casting, the lighter impurities are

The supply at three sources is $$50, 40$$ and $$60$$ units respectively whilst the demand at the four destinations is $$20, 30, 10$$ and $$50$$ units. In solving this transportatio...