Explore topic-wise MCQs in Current Affairs.

This section includes 5400 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

4301.

Moh’s scale is used to determine ____ in stones.

A. toughness
B. hardness
C. flakiness index
D. durability
Answer» C. flakiness index
4302.

Fat lime is used for best performance in.

A. Masonry mortar
B. Lime concrete
C. plaster work
D. none
Answer» D. none
4303.

_____ is the crude impure iron, which is extracted from iron ores.

A. Steel
B. Cast iron
C. Pig iron
D. Wrought iron
Answer» D. Wrought iron
4304.

For glazing clay product, at what temperature sodium chloride should be thrown into the kiln?

A. 100 - 130° C
B. 600 - 720° C
C. 1000 - 1300° C
D. 3000 - 3500° C
Answer» D. 3000 - 3500° C
4305.

Dolomite is a lime stone that contains carbonate of magnesia up to:

A. 35%
B. 15%
C. 25%
D. 45%
Answer» E.
4306.

Marble is an example of

A. Aqueous rock
B. Metamorphic rock
C. Sedimentary rock
D. Igneous rock
Answer» C. Sedimentary rock
4307.

Hold fast iron straps bent in the form of which of the following English capital letter at their ends?

A. Z
B. T
C. M
D. L
Answer» B. T
4308.

India's first Bio-methane based bus was launched by which of the following Indian Company?

A. TATA
B. Mahindra
C. Bajaj
D. Eicher
Answer» B. Mahindra
4309.

On 21 August 2020, former Finance Secretary Rajiv Kumar was appointed as:

A. the Election Commissioner
B. a member of UPSC
C. the Defence Secretary
D. the Secretary of State for Education
Answer» B. a member of UPSC
4310.

Choose the correct statement(s) :Statement I :Corals are an endangered marine species and protected under Schedule I of Wildlife Protection Act, 1972.Statement II : Rhizangiidae, Caryophylliidae and Dendrophylliidae are the names of Coral families, recently in news as the Maharashtra government gave permission to translocate some coral colonies in order to build a coastal road to ease traffic congestion.Choose the correct option:

A. Only I
B. Only II
C. Both I and II
D. Neither I nor II
Answer» D. Neither I nor II
4311.

__________ is a by-product of manufacturing of acetylene.

A. Carbide lime
B. Hydraulic lime
C. Fat lime
D. Kankar lime
Answer» B. Hydraulic lime
4312.

As per mohr’s scale the hardness of quartz and topaz respectively are

A. 7 & 8
B. 8 & 7
C. 9 & 10
D. 10 & 9
Answer» B. 8 & 7
4313.

Mafic rocks are a part of

A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. Fossil rocks
Answer» B. Sedimentary rocks
4314.

Granite after metamorphism transforms to

A. Quartzite
B. Gneiss
C. Schist
D. Slate
Answer» C. Schist
4315.

Consider the following particulars in respect of a concrete mix design: WeightSpecific GravityCement400 kg/m33.2Find aggregates-2.5Coarse aggregates1040 kg/m32.6Water200 kg/m31.0 What shall be the weight of the Fine aggregates?

A. 520 kg/m3
B. 570 kg/m3
C. 690 kg/m3
D. 1000 kg/m3
Answer» D. 1000 kg/m3
4316.

India joined the Missile Technology Control Regime (MTCR) in the year

A. 2011
B. 1998
C. 2016
D. 2007
Answer» D. 2007
4317.

In mild steel the iron content is about _______.

A. 50%
B. 80%
C. 90%
D. 99%
Answer» E.
4318.

As a public servant, one needs to follow a code of ethics. Which of the following is NOT one of this code of ethics?

A. Ensuring economy and propogation of wastage in expenditure
B. Good governance for betterment of the people to be the primary goal of civil service
C. Maintenance of highest ethical standards
D. Provision of healthy and congenial work enviroment
Answer» B. Good governance for betterment of the people to be the primary goal of civil service
4319.

Name the type of sheets which has both everite big size and everite standard.

A. Slates only
B. A.C. sheets only
C. All of the above
D. G.I. sheets only
Answer» C. All of the above
4320.

From which of the following ore zinc is extracted?

A. Galena
B. Black jack
C. Corundum
D. Malachite
Answer» C. Corundum
4321.

Aluminum is obtained from the ore called as

A. Bauxite
B. Ferrite
C. Magnetite
D. Calcite
Answer» B. Ferrite
4322.

Limestone is a type of:

A. Plutonic rock
B. Igneous rock
C. Sedimentary rock
D. Metamorphic rock
Answer» D. Metamorphic rock
4323.

Common glass is also known as:

A. Potash lead glass
B. Soda-lime glass
C. Bottle glass
D. Borosilicate glass
Answer» D. Borosilicate glass
4324.

Mohr’s scale is used to determine _________ of the stone.

A. durability
B. flakiness index
C. hardness
D. toughness
Answer» D. toughness
4325.

What will be the ouput of the given code snippet?

A. program will print garbage value
B. program will print address of a
C. program will print value of a1
D. program will print address of a1
Answer» D. program will print address of a1
4326.

What will be the output of the given code segment?

A. The program will print 10
B. Run time error
C. Compile time error
D. Output is the address contained in p
Answer» D. Output is the address contained in p
4327.

What does the following code block define?

A. Generics class decleration
B. Decleration of variable
C. A simple class decleration
D. Both a & b
Answer» E.
4328.

What does the following code set defines?

A. Generics class decleration
B. Decleration of variable
C. Generic constructor decleration
D. All of the mentioned
Answer» D. All of the mentioned
4329.

What does the following code display while execution?

A. compscibits
B. compscibits.com
C. www.compscibits.com
D. https://www.compscibits.com/Category/c-sharp-programming
Answer» E.
4330.

What does the given code snippet specify?

A. A B C D E F G H I J K L M N O P Q R S T U V
B. Run time error
C. U T S R Q P O N M L K J I H G F E D C B A
D. Compile successfully prints nothing
Answer» D. Compile successfully prints nothing
4331.

What is Semaphore?

A. Grant more than one thread access to a shared resource at the same time
B. Useful when a collection of resources is being synchronized
C. Make use of a counter to control access to a shared resource
D. All of the mentioned
Answer» E.
4332.

What will the given code snippet specify?

A. Code run successfully prints nothing
B. A B C D E F G H I J K L M N O P Q R S T U V
C. U T S R Q P O N M L
D. Compile time error
Answer» D. Compile time error
4333.

What does the yield return statement specify in below code snippet?

A. returns the output
B. returns the next object in the collection
C. both a & b
D. none of the mentioned
Answer» C. both a & b
4334.

What will be the output of the code snippet?

A. Compile time error
B. Run time error
C. 65 66 67 68 69 70
D. Code run successfully prints nothing
Answer» D. Code run successfully prints nothing
4335.

Choose the correct statement about the IComparer interface in C#:

A. The IComparer is in System.Collections.Generic
B. It defines a generic form of Compare()
C. Only a
D. Both a & b
Answer» E.
4336.

Which of the following is the correct way of applying the custom attribute called Tested which receives two-arguments - name of the tester and the testgrade?1. Custom attribute cannot be applied to an assembly.2. [assembly: Tested("Sachin", testgrade.Good)]3. [Tested("Virat", testgrade.Excellent)] class customer { /* .... */ }4. Custom attribute cannot be applied to a method.5. Custom attribute cannot be applied to a class.

A. 1 only
B. 1, 5
C. 2, 3
D. 4, 5
Answer» D. 4, 5
4337.

Which of the following statements are correct about Attributes in C#.NET?1. On compiling a C#.NET program the attibutes applied are recorded in the metadata of the assembly.2. On compilation all the attribute's tags are deleted from the program.3. It is not possible to create custom attributes..4. The attributes applied can be read from an assembly using Reflection class.5. An attribute can have parameters.

A. 1 and 2 only
B. 2 and 4 only
C. 1, 4 and 5 only
D. All of the above
Answer» D. All of the above
4338.

Which of the following statements are correct about inspecting an attribute in C#.NET?1. An attribute can be inspected at link-time.2. An attribute can be inspected at compile-time.3. An attribute can be inspected at run-time.4. An attribute can be inspected at design-time.

A. 1, 2
B. 3, 4
C. 1, 3, 4
D. All of the above
Answer» B. 3, 4
4339.

What kind of exception is being thrown if Wait(),Pulse() or PulseAll() iscalled from code that is not within synchronized code?

A. System I/O Exception
B. DivideByZero Exception
C. SynchronizationLockException
D. All of the mentioned
Answer» D. All of the mentioned
4340.

Which of the following statements are correct about the structure declaration given below?1. We cannot declare the access modifier of totalpages as protected.2. We cannot declare the access modifier of name as private.3. We cannot define a zero-argument constructor inside a structure.4. We cannot declare the access modifier of price as public.5. We can define a Showdata() method inside a structure.

A. 1, 2
B. 1, 3, 5
C. 2, 4
D. 3, 4, 5
Answer» C. 2, 4
4341.

Which of the following are correct ways to pass a parameter to an attribute?1. By value2. By reference3. By address4. By position5. By name

A. 1, 2
B. 1, 2, 3
C. 4, 5
D. All of the above
Answer» D. All of the above
4342.

Which of the following are true about classes and struct?1. A class is a reference type, whereas a struct is a value type.2. Objects are created using new, whereas structure variables can be created either using new or without using new.3. A structure variable will always be created slower than an object.4. A structure variable will die when it goes out of scope.5. An object will die when it goes out of scope.

A. 1, 2, 4
B. 3, 5
C. 2, 4
D. 3, 4, 5
Answer» B. 3, 5
4343.

Which of the following statements are correct about Structures used in C#.NET?1. A Structure can be declared within a procedure.2. Structs can implement an interface but they cannot inherit from another struct.3. struct members cannot be declared as protected.4. A Structure can be empty.5. It is an error to initialize an instance field in a struct.

A. 1, 2, 4
B. 2, 3, 5
C. 2, 4
D. 1, 3
Answer» C. 2, 4
4344.

The property signifies “Obtains a Module object that represents the module (an executable file) in which the reflected type resides”. Choose the property which specifies the following statement:

A. Type DeclaringType
B. int MetadataToken
C. Module Module
D. Type ReflectedType
Answer» D. Type ReflectedType
4345.

Which of these statements is incorrect ?

A. By multithreading CPU’s idle time is minimized, and we can take maximum use of it
B. By multitasking CPU’s idle time is minimized, and we can take maximum use of it
C. Two thread in Csharp can have same priority
D. A thread can exist only in two states, running and blocked
Answer» E.
4346.

Which of the following are the classes that support the standard HTTP protocol ?

A. HttpWebRequest
B. HttpResponseHeader
C. HttpRequestHeader
D. HttpStatusCode
Answer» B. HttpResponseHeader
4347.

Which method will be used to copy content from one array to another array?

A. Copy()
B. copy()
C. Both Copy() & copy()
D. None of the mentioned
Answer» B. copy()
4348.

Which of the following are the interfaces defined by the namespace System.Net:

A. IAuthenticationModule
B. HttpWebRequest
C. WebProxy
D. HttpResponseHeader
Answer» B. HttpWebRequest
4349.

Pointer variable is used to hold the _________ of the variable.

A. Value
B. Address
C. Value and Address
D. Name of the variable
Answer» C. Value and Address
4350.

What does the following method specify?Type[] GetGenericArguments()

A. A property defined by MemberInfo
B. Obtains a list of the type arguments bound to a closed constructed generic type
C. The list may contain both type arguments and type parameters
D. All of the mentioned
Answer» E.