Choose the most appropriate alternative from the options given below to complete the following sentence: Were you a bird, you ______________ in the sky.
Question 2
In the following question sentences are given with blanks to be filled In with an appropriate word(s). Choose the correct alternative out of the four. The engineers ____ this bridge since last year.
Question 3
The data given in the following table summarizes the monthly budget of an average household. The approximate percentage of the monthly budget NOT spent on savings is
Question 4
The maximum value of the directional derivative of the function at a point (1, 1, –1) is
Question 5
The minimum value of function y = x2 in the interval [1, 5] is
Question 6
Two very large parallel plane with emissivities 0.3 and 0.8 exchange radiative energy. The percentage reduction in radiative energy transfer when a polished aluminium radiation shield () is placed between them is __________%.
Question 7
A diffuse radiation surface has
Question 8
For the configuration shown, the minimum head H in the vessel will be [Take Cv=1]
Question 9
Which is the correct equation of head loss in a pipe?
Question 10
A 2 kg block is placed over a 4 kg block and both are placed on a smooth horizontal surface. The coefficient of friction between the blocks is 0.2. The acceleration of the lower block if a horizontal force of 12 N is applied to upper block is ________ m/s2. [Take g = 10 m/s2]
Question 11
A particle motion on a space curve is governed by and . The speed of the particle any instant will be? ( is time)
Question 12
A car of mass 1000 kg is moving down the hill at a slope of 1: 4 at 108 km/hr. The braking torque(in Nm) to be applied to stop the vehicle in a distance of 100 m, is _______ . Diameter of tyre is 0.5m (Neglect all the frictional energy except for the brake)
Question 13
A carbon steel shaft 60 mm diameter is subjected to a fluctuating torque between 1500 Nm to 4000 Nm. Using Soderberg equation, the factor of safety is _________. [Take, = 600 MPa and = 400 MPa] Assume, = 0.6 and = 0.5 .
Question 14
For a simply supported beam of length ‘l’ subjected to downward load of uniform intensity w, match List-I with List –II and selected the correct answer using the codes given below the lists: List-I A- Slope of shear force diagram B- Maximum shear force C- Maximum deflection D- Magnitude of maximum bending moment List-II 1- 2- W 3- 4-
Question 15
The Mohr’s circle of plane stress for a point in a body is shown. The design is to be done on the basis of the maximum shear stress theory for yielding will just begin if the designer choose a ductie material whose yield strength is
Question 16
Which statement is correct?
Question 17
A CNC vertical roiling machine has to cut a straight slot of 20 mm width and 4 mm depth by a cutter of 15 mm diameter between points (0, 0) and (50, 50) on the xy plane (dimensions in mm). The feed rate used for milling is 45 mm/min. Milling time for the slot (in seconds) is ___________.
Question 18
In an arc welding process, the voltage and current are 25 V and 300 A respectively. The arc heat transfer efficiency is 0.85 and welding speed is 8 mm/sec. the net heat input (in J/mm) is:
Question 19
A 0.9 m long plate is welded by manual metal arc welding process using welding current of 150A, arc voltage of 20V and welding speed of 5 mm/s. If the process efficiency is 0.8 and surface resistance is 36 micro-ohm, the heat input (in J/mm) will be____?
Question 20
An amount of 100 kW of heat is transferred through a wall in steady state. One side of the wall is maintained at 127 °C and the other side at 27 °C. The entropy generated (in W/K) due to the heat transfer through the wall is _______
Question 21
Two identical metal blocks L and M (specific heat = 0.4 kJ/kg.K), each having a mass of 5 kg, are initially at 313 K. A reversible refrigerator extracts heat from block L and rejects heat to block M until the temperature of block L reaches 293 K. The final temperature (in K) of block M is _______
Question 22
In a gas turbine, hot combustion products enter the turbine at 18 bar 1400 K and exit at 1 bar. The isentropic efficiency of turbine is 0.96. Ratio of specific heats for combustion product is 1.3 and CV = 0.77kJ/kg-k. The work developed by the turbine is __________ kJ/kg.
Question 23
A building requires a 2-tonne heat pump for maintaining the interior space at 27 °C when the outside temperature is 5 °C. The heat pump operates on the normal vapour compression cycle and uses R-134a as the working fluid. The heat pump operating conditions require an evaporator pressure of 240 kPa and a condenser pressure of 1600 kPa while the compressor has an isentropic efficiency of 85 percent.
The COP of heat pump is
Question 24
Match List-I with List-II and select the correct answer using the codes given below the lists : List-I A- Pelton turbine B. Francis turbine C- Propeller turbine D- Kaplan turbine List-II 1- Specific speed from 300 to 1000 + axial flow with fixed runner vanes. 2- Specific speed from 10 to 50 + tangential flow 3- Specific speed from 60 to 300 + mixed flow 4- Specific speed from 300 to 1000 + axial flow with adjustable runner vanes.
Question 25
U1 and U2 are the strain energies stored in a prismatic bar due to axial tensile force P1 and P2 respectively. The strain energy U stored in the same bar due to combined action of P1 and P2 will be ________.
Question 26
A simply supported beam has the square cross-section having moment of inertia 1728 mm4. It carries a uniformly distributed load of intensity 10 N/m. Considering only the top fibre of beam, the correct representation of the longitudinal variation of the bending stress is (consider sagging B.M positive & compressive bending stress positive)
Question 27
Consider the following activity of a certain network: Then the value of
Question 28
What is the difference between 3-week and 5-week simple moving average forecast for 15th week for the following data:
Question 29
The product structure of product p is shown in figure. If the number of unit required 150, then determine the net requirement of item C if the initial inventory of A,B,C and D is 10, 20, 15, and 15 respectively.
Question 30
From the lists given below, choose the most appropriate set of heat treatment process and the corresponding process characteristics ______.