Explore topic-wise MCQs in Current Affairs.

This section includes 2171 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1351.

The compaction of concrete, improves

A. density
B. strength
C. durability
D. all the above.
Answer» E.
1352.

C.R.R.I. charts are used to obtain a relatioship between strength of concrete and

A. water cement ratio
B. workability
C. grading of aggregate
D. fineness modulus
Answer» B. workability
1353.

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are:

A. 70 litres of sand and 120 litres of aggregates
B. 70 kg of sand and 140 litres of aggregates
C. 105 litres of sand and 140 litres of aggregates
D. 105 litres of sand and 210 litres of aggregates
Answer» E.
1354.

Percentage of pozzolanic material containing clay upto 80% used for the manufacture of pozzolana cement, is

A. 30%
B. 40%
C. 50%
D. 60%
Answer» B. 40%
1355.

Addition of pozzolana to cement causes

A. reduction in permeability
B. loss of heat of hydration
C. reduction in bleeding
D. all the above.
Answer» E.
1356.

The minimum percentage of chemical ingredient of cement is that of

A. magnesium oxide
B. iron oxide
C. alumina
D. lime
Answer» B. iron oxide
1357.

A concrete using an air entrained cement

A. has strength less than 10% to 15%
B. has more resistance to weathering
C. is more plastic and workable
D. is free from segregation and bleeding
Answer» D. is free from segregation and bleeding
1358.

To prevent segregation, the maximum height for placing concrete, is

A. 100 cm
B. 125 cm
C. 150 cm
D. 200 cm
Answer» B. 125 cm
1359.

Batching error means inaccuracy in the quantity of

A. aggregates
B. cement
C. water
D. all the above.
Answer» E.
1360.

For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is

A. 1 : 3 : 6
B. 1 : 1.5 : 3
C. 1 : 2 : 4
D. 1 : 1 : 2
Answer» D. 1 : 1 : 2
1361.

Cement used for normal concrete construction, is obtained by burning a mixture of

A. silicious and argillaceous materials
B. argilaceous and calcareous materials
C. silicious and catcareous materials
D. silicious, argillaceous and calcareous materials
Answer» E.
1362.

The internal dimensions of a ware house are 15 m x 5.6 m, and the maximum height of piles is 2.70 m, the maximum number of bags to be stored in two piles, are

A. 1500 bags
B. 2000 bags
C. 2500 bags
D. 3000 bags
Answer» E.
1363.

To obtain a very high strength concrete, use very fine grained

A. Granite
B. Magnetite
C. Barite
D. Volcanic scoria.
Answer» B. Magnetite
1364.

If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than

A. 20.5 mm
B. 30.5 mm
C. 40.5 mm
D. 50.5 mm
Answer» D. 50.5 mm
1365.

The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is

A. rounded aggregate
B. irregular aggregate
C. angular aggregate
D. flaky aggregate
Answer» B. irregular aggregate
1366.

I.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of

A. coarse aggregates
B. fine aggregates
C. neither (a) nor (b)
D. both (a) and (b)
Answer» E.
1367.

You are asked to construct a massive dam, the type of cement you will use, is

A. ordinary Portland cement
B. rapid hardening cement
C. low heat cement
D. blast furnace slag cement
Answer» D. blast furnace slag cement
1368.

Hardening of cement occurs at

A. rapid rate during the first few days and afterwards it continues to increase at a decreased rate
B. slow rate during the first few days and afterwards it continues to increase at a rapid rate
C. uniform rate throughout its age
D. none of these.
Answer» E.
1369.

The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is

A. 30%
B. 40%
C. 50%
D. 60%.
Answer» D. 60%.
1370.

What does AM mean?

A. Angelo marconi
B. Anno median
C. Amplitude modulation
D. Amperes
Answer» D. Amperes
1371.

In what year was the "@" chosen for its use in e-mail addresses?

A. 1976
B. 1972
C. 1980
D. 1984
Answer» C. 1980
1372.

Which consists of two plates separated by a dielectric and can store a charge?

A. Inductor
B. Capacitor
C. Transistor
D. Relay
Answer» C. Transistor
1373.

What do we call a collection of two or more computers that are located within a limited distance of each other and that are connected to each other directly or indirectly?

A. Inernet
B. Interanet
C. Local Area Network
D. Wide Area Network
Answer» D. Wide Area Network
1374.

Name the terminals of a BJT.

A. Drain, Gate, Source
B. Positive, Negative, Neutral
C. Anode, Cathode, Triode
D. Emitter, Base, Collector
Answer» E.
1375.

In the United States the television broadcast standard is...?

A. PAL
B. NTSC
C. SECAM
D. RGB
Answer» C. SECAM
1376.

In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is about...?

A. 500 volts
B. 5 thousand volts
C. 25 thousand volts
D. 100 thousand volts
Answer» D. 100 thousand volts
1377.

The "http" you type at the beginning of any site's address stands for...

A. HTML Transfer Technology Process
B. Hyperspace Terms and Tech Protocol
C. Hyperspace Techniques & Tech Progress
D. Hyper Text Transfer Protocol
Answer» E.
1378.

Compact discs, (according to the original CD specifications) hold how many minutes of music?

A. 74 mins
B. 56 mins
C. 60 mins
D. 90 mins
Answer» B. 56 mins
1379.

What is a GPU?

A. Grouped Processing Unit
B. Graphics Processing Unit
C. Graphical Performance Utility
D. Graphical Portable Unit
Answer» C. Graphical Performance Utility
1380.

A DV camcorder is...

A. Capable of creating video in HDTV
B. Used to create digital video
C. Limited to the Direct Video format
D. A Denon Video brand product
Answer» C. Limited to the Direct Video format
1381.

Changing computer language of 1's and 0's to characters that a person can understand is...

A. Highlight
B. Clip art
C. Decode
D. Execute
Answer» D. Execute
1382.

What are the 2 terminals of a diode called?

A. Pentode and Triode
B. Gate and Drain
C. Drain and Source
D. Anode and Cathode
Answer» E.
1383.

Which of the following is not a programming language?

A. Basic
B. Java
C. Turing
D. C#
Answer» D. C#
1384.

What is not always necessary for accessing the Web?

A. A Web browser
B. A connection to an Internet Access Provider
C. A computer
D. A modem
Answer» E.
1385.

What does ECP stand for?

A. Extended Capabilities Port
B. Extra Compatible Part
C. Extended Connection Port
D. External Cordless Peripheral
Answer» B. Extra Compatible Part
1386.

How can you catch a computer virus?

A. Sending e-mail messages
B. Using a laptop during the winter
C. Opening e-mail attachments
D. Shopping online
Answer» D. Shopping online
1387.

What does SSL stand for?

A. Secure Socket Layer
B. System Socket Layer
C. Superuser System Login
D. Secure System Login
Answer» B. System Socket Layer
1388.

The Internet was developed in the...

A. Early 1990s
B. Late 1980s
C. Early 1970s
D. Late 1960s
Answer» E.
1389.

Sometimes computers and cache registers in a foodmart are connected to a UPS system. What does UPS mean?

A. United Parcel Service
B. Uniform Product Support
C. Under Paneling Storage
D. Uninterruptable Power Supply
Answer» E.
1390.

The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down are called a...?

A. Transformer
B. Yoke
C. Capacitor
D. Diode
Answer» C. Capacitor
1391.

Who co-founded Hotmail in 1996 and then sold the company to Microsoft?

A. Shawn Fanning
B. Ada Byron Lovelace
C. Sabeer Bhatia
D. Ray Tomlinson
Answer» D. Ray Tomlinson
1392.

In the UK, what type of installation requires a fireman's switch?

A. Neon Lighting
B. High Pressure Sodium Lighting
C. Water Features
D. Hotel Rooms
Answer» B. High Pressure Sodium Lighting
1393.

The transformer that develops the high voltage in a home television is commonly called a...?

A. Tesla coil
B. Flyback
C. Yoke
D. Van de Graaf
Answer» C. Yoke
1394.

What is VCM?

A. Virtual Connection Manager
B. Virtual Channel Memory
C. Voice Controlled Modem
D. Voice Communications Module
Answer» C. Voice Controlled Modem
1395.

What is a MAC?

A. A Computer made by Apple
B. Memory Address Corruption
C. Mediocre Apple Computer
D. Media Access Control
Answer» E.
1396.

The "desktop" of a computer refers to:

A. The visible screen
B. The area around the monitor
C. The top of the mouse pad
D. The inside of a folder
Answer» B. The area around the monitor
1397.

'.TXT' extension refers usually to what kind of file?

A. Text File
B. Image file
C. Audio file
D. Adobe Acrobat file
Answer» B. Image file
1398.

What is the Websites code for the country Mongolia?

A. MN
B. ML
C. MG
D. MO
Answer» B. ML
1399.

Which of the following word processors came first?

A. WordPerfect
B. Lotus Notes
C. MS Word
D. WordStar
Answer» E.
1400.

What is a NIC?

A. Netware Intranet Controller
B. No Internet Connection
C. Network Interface Card
D. Network Interference Control
Answer» D. Network Interference Control