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Thursday, October 17, 2019

Basic Of Computer

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Introduction to Computer with Basic Multiple Choice Questions...................................



Q.1: RAM' stands for
  1. Random Access Memory
  2. Read Access Memory
  3. Read Arithmetic Memory
  4. Random Arithmetic Memory
Ans: A

Q2: Teletypewriter terminal is an example of
  1. input devices
  2. output devices
  3. input/output devices
  4. storage devices
Ans: C

Q3: Teletypewriter terminal is an example of
  1. input devices
  2. output devices
  3. input/output devices
  4. storage devices
Ans: A

Q4: Central Processing Unit (CPU) consists of
  1. control unit
  2. arithmetic and logic unit
  3. main store
  4. all of above
 Ans: D

Q5: Devices which are used to receive data from central processing unit are classified as
  1. output/input devices
  2. digital devices
  3. signaled devices
  4. output devices
Ans: D

Q6: Place where large amounts of data are stored outside central processing unit is called
  1. backing store
  2. peripherals
  3. control unit
  4. ALL unit
Ans: A

Q7: Devices that are under control of computer and are directly connected to computer peripherals are termed as
  1. off-line devices
  2. on-line devices
  3. IN gate device
  4. IF gate device
Ans: B

Q8: If any instruction consist of any arithmetic operation, data is transferred to
  1. quantitative unit
  2. qualitative unit
  3. arithmetic and logical unit
  4. central processing unit
Ans: C

Q9: Devices such as mercury thermometer and kitchen scales are classified as
  1. digital devices
  2. analogue devices
  3. programmed devices
  4. signal led devices
Ans: B

Q10: 'main store' of CPU is also called
  1. main memory
  2. temporary memory
  3. immediate access store
  4. both A and C
Ans: D

Q11: If a quantity in device is treated as different set of separate values, device is said to be
  1. digital
  2. analogues
  3. signals
  4. computer
Ans: A

Q12: Material on which data is stored or an input/output is classified is termed as
  1. mini frame medium
  2. micro medium
  3. macro medium
  4. medium
Ans: D

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Q13: Type of integrated circuit which consists of arithmetic unit, control unit and some main store is called a
  1. mega processor
  2. micro processor
  3. micro computers
  4. mega computers
Ans: B

Q14: Visual display unit is an example of
  1. output device
  2. input/output devices
  3. backup devices
  4. mediums
Ans: B

Q15: Devices that are not connected to computers central processing unit are classified as
  1. AND gate devices
  2. OR gate devices
  3. off-line devices
  4. on-line devices
Ans: C

Q16: Keyboard and mouse are
  1. DC devices
  2. analogue devices
  3. truth table devices
  4. input devices
Ans: D

Q17: Silicon piece with a system circuit on it is termed as
  1. chip
  2. circuit
  3. logical gate
  4. circuit network
Ans: A

Q18: Large computers with wide range of peripheral devices are classified as
  1. mainframe computers
  2. mini frame computers
  3. mainframe processors
  4. peripheral interface
Ans: A

Q19: Computer for which processing is used to be done with help of microprocessors is termed as
  1. micro processor
  2. micro computers
  3. mega processor
  4. mega computers
Ans: B

Q20: Actual equipment of computer system that can be touched are
  1. hardware
  2. software
  3. applications
  4. bugs
Ans: A

Q21: Decoding and execution of instructions rapidly, one after another is called
  1. AL unit
  2. backup device
  3. keyboard
  4. control unit
Ans: D

Q22: Input and Output devices such as monitors and keyboards are classified as
  1. arithmetic units
  2. control unit devices
  3. peripheral devices
  4. main store devices
Ans: C

Q23: 'ROM' stands for
  1. read only memory
  2. random only memory
  3. readily object memory
  4. random available memory
Ans: A

Q24: Line printer, a voice synthesizer and computer terminal screen are classic examples of
  1. logic circuit devices
  2. analogue circuit devices
  3. AND gate devices
  4. output devices
Ans: D

Q25: Devices that are controlled by central processing unit but are not a part of it are called
  1. peripheral devices
  2. arithmetic units
  3. control unit devices
  4. main store devices
Ans: A

Tuesday, October 15, 2019

Biology Mcqs

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These Biology Mcqs are also beneficial for Preparation of PPSC Test, FPSC Test, SPSC Test,KPPSC Test,BPSC Test,PTS ,OTS,GTS,JTS,CTS ...








Tibia is a bone found in the ____________?
Which is the largest gland in the human body?
Water has maximum density at____________?
The scientific study of livings is called?
The word “BIOLOGY” has been derived from_________ word?
According to modern system of taxonomy, living organisms have been classified into?
Kingdom Protoctista includes____________?
Kingdom Fungi includes_______________?
Earthworm is included in_____________?
The Study of organisms inhabiting the sea and Ocean and the physical and chemical characteristics of their environment is:

Monday, October 14, 2019

Organic Chemistry focuses on “Chemical Bond

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Organic Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Chemical Bond”.

Q1. Which among the following chemical bond were described by Kossel and Lewis?
a) Metallic bond
b) Polar covalent bond
c) Coordinate bond
d) Ionic and Covalent bond

Answer: d

Explanation:
Both Ionic and Covalent bond arise from the tendency of atoms to attain stable configuration of electrons.

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Q2. Which among the following is not a property of Ionic bond?
a) Losing of electrons
b) Gain of electrons
c) Sharing of electrons
d) Transfer of electrons

Answer: c
Explanation: Ionic bond results from a), b) and d). But the transfer of electrons is a property of Covalent bond.

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Q3. Which among the following formation is not an example of Covalent bond?
a) LiF
b) NH3
c) CF4
d) HF

Answer: a
Explanation: LiF (Lithium Fluoride) is an example of Ionic bond, as the formation takes place by transfer of electrons and not by sharing.
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Q4. State whether the given statement is true or false “Ionic bonds are non-directional”
a) True
b) False

Answer: a
Explanation: The ionic bond breaks up when dissolved in water and allow the charged particles to move freely.

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Q5. If a bond is made up of a large number of organic compound, then the bond is termed as?
a) Ionic bond
b) Metallic bond
c) Covalent bond
d) Dipolar bond

Answer: c
Explanation: This is because they have the tendency to transfer electrons.

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Q6. Which among the following is not an example of hydrogen bond?
a) H20
b) Liquid HCl
c) NH3
d) CHCl3

Answer: b
Explanation: There is no hydrogen bond in liquid HCl since the bond breaks up when dissolved in water.

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Q7. Atoms undergo bonding in order to ?
a) Attain stability
b) Lose stability
c) Move freely
d) Increase energy

Answer: a
Explanation: Atoms undergo bonding to attain stable electronic configuration and to gain energy.

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Q8. An atom differs from its ion in which among the following ?
a) Mass number
b) Atomic number
c) Neutrons
d) Number of protons

Answer: d
Explanation: When an atom loses or gains electrons its forms its corresponding ion, and hence it differs in proton number.

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Q9. Which among the following is NOT both a molecule and a compound?
a) C6 H12 O6
b) H2O
c) CO2
d) NaCl

Answer: d
Explanation: NaCl is a compound because it has ionic bond between Na and Cl. The other three options have both covalent bonds as well as ionic bonds, hence they can be termed as both molecules and compounds.

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Q10. Bond energy and the corresponding bond length vary directly with each other.
a) True
b) False

Answer: b
Explanation: Smaller the bond energy, greater will be the bond length and vice versa and hence the two vary inversely with each other.


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