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Home » Engineering » Aptitude Test - 131
Hassan
1.The variables which control the physical properties of a perfect gas are
A. pressure exerted by the gas
B. volume occupied by the gas
C. temperature of the gas
D. pressure exerted by the gas
2.The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by
A. Kelvin
B. Joule
C. Clausis
D. Kelvin
3.Otto cycle consists of
A. two constant volume and two isentropic processes
B. two constant pressure and two isentropic processes
C. two constant volume and two isothermal processes
D. two constant volume and two isentropic processes
4.The increase in entropy of a system represents
A. increase in availability of energy
B. increase in temperature
C. decrease in pressure
D. increase in availability of energy
5.In a free expansion process,
A. W1 - 2 = 0
B. Q1 - 2 = 0
C. dU = 0
D. W1 - 2 = 0
6.The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)
A. pv = mRT
B. pv = RTm
C. pvm = C
D. pv = mRT
7.The work ratio of simple gas turbine cycle depends upon
A. maximum cycle temperature
B. minimum cycle temperature
C. pressure ratio
D. maximum cycle temperature
8.The gas constant (R) is equal to the
A. sum of two specific heats
B. difference of two specific heats
C. product of two specific heats
D. sum of two specific heats
9.Select the wrong statement
A. A Joule cycle consists of two constant volume and two isentropic processes.
B. An Otto cycle consists of two constant volume and two isentropic processes.
C. An Ericsson cycle consists of two constant pressure and two isothermal processes.
D. A Joule cycle consists of two constant volume and two isentropic processes.
10.One kg of hydrogen requires 8 kg of oxygen and produces
A. 1 kg of water
B. 7 kg of water
C. 8 kg of water
D. 1 kg of water
11.The standard value of atmospheric pressure taken at sea level is
A. 1.013 bar
B. 760 mm of Hg
C. 1013 x 102 N/m2
D. 1.013 bar
12.The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
A. element
B. compound
C. atom
D. element
13.The absolute zero pressure can be attained at a temperature of
A. 0°C
B. 273°C
C. 273 K
D. 0°C
14.One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and ____ kg of water or steam.
A. 7-Sep
B. 7-Nov
C. 4-Jul
D. 7-Sep
15.One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to
A. 800K
B. 1000K
C. 1200K
D. 800K
16.When the gas is heated at constant volume, the heat supplied
A. increases the internal energy of the gas and increases the temperature of the gas
B. does some external work during expansion
C. Both (A) and (B)
D. increases the internal energy of the gas and increases the temperature of the gas
17.In closed cycle gas turbine, the air is compressed
A. isothermally
B. isentropically
C. polytropically
D. isothermally
18.What was the total number of UNIVAC-I sold eventually and by which company?
A. 30, British Tabulating Machine Co. (BTM)
B. 40, International Business Machines (IBM)
C. 48, Remington Rand
D. 30, British Tabulating Machine Co. (BTM)
19.A file containing relatively permanent data is
A. Random file
B. Transaction file
C. Master file
D. Random file
20.Communication that involves computers, establishing a link through the telephone system is called
A. Teleprocessing
B. Microprocessing
C. Telecommunications
D. Teleprocessing
21.Dot-matrix is a type of
A. Tape
B. Printer
C. Disk
D. Tape
22.Which kind of devices allows the user to add components and capabilities to a computer system?
A. System boards
B. Storage devices
C. Input devices
D. System boards
23.Where does a computer add and compare data?
A. Hard disk
B. Floppy disk
C. CPU chip
D. Hard disk
24.Which of the following require large computer memory?
A. Imaging
B. Graphics
C. Voice
D. Imaging
25.Which of the following are used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU?
A. microprocessors
B. registers
C. ROM chips
D. microprocessors
26.Which disk interface standard includes support for up to eight peripheral devices?
A. ST50G/412
B. IDE
C. SCSI
D. ST50G/412
27.Who designed the first general purpose electronic digital computer "ENIAC" ?
A. Van-Neumann
B. Joseph M Juoquard
C. J. Presper Ecket and John W Mauchly
D. Van-Neumann
28.What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
A. Bus control
B. Interrupts
C. Bus arbitration
D. Bus control
29.In synchronous transmission data from various users
A. Require header
B. Do not require header
C. Sometimes require header
D. Require header
30.General purpose computers are those that can be adopted to countless uses simply by changing its
A. keyboard
B. printer
C. program
D. keyboard
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