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Test: Engineering Equipments - 3 - Civil Engineering (CE) MCQ


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20 Questions MCQ Test Topicwise Question Bank for Civil Engineering - Test: Engineering Equipments - 3

Test: Engineering Equipments - 3 for Civil Engineering (CE) 2024 is part of Topicwise Question Bank for Civil Engineering preparation. The Test: Engineering Equipments - 3 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Engineering Equipments - 3 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Engineering Equipments - 3 below.
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Test: Engineering Equipments - 3 - Question 1

A bulldozer operates on a 30 m stretch and moves at 2.4 kmph when pushing the earth, and returns empty at 6 kmph. The time lost in loading and shifting gears per trip is 18 seconds. Its operating factor is nearly 50 min/hour. What is the number of trips made per hour?

Detailed Solution for Test: Engineering Equipments - 3 - Question 1

Calculating Time Taken for One Round Trip


  • Speed while pushing earth = 2.4 kmph

  • Speed while returning empty = 6 kmph

  • Time lost in loading and shifting gears per trip = 18 seconds

  • Distance of one round trip = 30 m = 0.03 km

  • Time taken for one round trip = (0.03 / 2.4) + (0.03 / 6) + 18/3600 hours

  • Time taken for one round trip = 0.0125 + 0.005 + 0.005 = 0.0225 hours

  •  

Calculating Number of Trips per Hour


  • Operating factor = 50 min/hour = 50/60 = 5/6 hours

  • Time taken for one round trip = 0.0225 hours

  • Number of trips made per hour = 5/6 / 0.0225 = 37 trips


Therefore, the number of trips made per hour is 37. Hence, the correct answer is option D.

Test: Engineering Equipments - 3 - Question 2

Which of the following advantages accrue to the use of Articulate Dump Trucks (ADT) over Rigid Dump Trucks (RDT) for construction and earth moving work?
1. Higher maneuverability
2. Lowturning radius
3. Lower fleet costs
Select the correct answer using the code given befow.
Codes :

Detailed Solution for Test: Engineering Equipments - 3 - Question 2

Advantages of ADT over RDT are :
(i) Higher Maneuverability;
(ii) Lower turning radius
(iii) Higher tractive effort
(iv) Better operator comfort
(v) Faster cycle times and therefore low fleet costs

Test: Engineering Equipments - 3 - Question 3

Consider the following statements: A mixer designated 400 NT indicates that
1. it is non-tilting type mixer
2. its nominal mix batch capacity is 400 litres
3. it requires 400 revolutions for proper mixing of the batch using one bag of cement
Which of the statements given above are correct?

Test: Engineering Equipments - 3 - Question 4

Match List-I with List-II and select the correct answer using the code given below the lists:

Codes:

Detailed Solution for Test: Engineering Equipments - 3 - Question 4

Back hoe or hoe can be used for digging trenches where precise control of depth is needed. Power shovels can be used to excavate the earth and load it into the trucks or other hauling equipments waiting nearby. They are capable of excavating all classes of earth except the solid rocks without loosening.. A dragline is designed to excavate below the level of the machine and need not to go into a pit or hole for excavating the earth. When the excavated earth is to be deposited on nearby banks or dams, it is better to use dragline with a long boom enough to dispose of the earth in one operation, eliminating the need of hauling units thereby reducing the cost of handling the earth. A dragline is excellent for excavating trenches without shoring.
The clamshell bucket is designed to excavate material in vertical direction and it is primarily used for handling loose materials such as sand, gravel, crushed stone, coal, etc.

Test: Engineering Equipments - 3 - Question 5

Which of the following are the advantages of crawler mounted bulldozer over wheel mounted bulldozers?
1. Higher travel speed
2. Able to travel over very soft soil
3. Able to travel over very rough surfaces having no haul roads
Select the correct answer using the code given below:

Test: Engineering Equipments - 3 - Question 6

How are concrete mixers specified?

Test: Engineering Equipments - 3 - Question 7

The tipping load of a crane refers to

Test: Engineering Equipments - 3 - Question 8

Which of the following earth moving machines has the shorter cycle time?

Test: Engineering Equipments - 3 - Question 9

If the output of a dragline for 90° angle of swing at optimum depth of cut is X, then the output for 120° angle of swing at 120% of optimum depth of cut will be

Detailed Solution for Test: Engineering Equipments - 3 - Question 9

By increasing angle of swim, the output of dragline will be reduced since output will be maximum at optimum depth of cut, so it will be further reduced if depth of cut is more or less than optimum depth of cut.

Test: Engineering Equipments - 3 - Question 10

A machine is purchased for ₹10,000,00/-and has an estimate life of 10 years. The salvage value at the end of 10 years is ₹1,50,000/-. The book value of the machine at the end of 5 years using general straight line method of evaluation of depreciation is

Detailed Solution for Test: Engineering Equipments - 3 - Question 10

Cost price of machine = ₹ 1000000 Salvage value = ₹ 150000
at end of 10 years
∴ Depreciation per year

∴ Book value after to 5 years
= 1000000-85000x5
= ₹ 575000

Test: Engineering Equipments - 3 - Question 11

An excavator costs ₹ 20,000/- and has an estimated life of 8 years. It has ho salvage value at the end of 8 years. The'book value of the excavator at the end of 3 years using genera! double declining balance methpd is

Detailed Solution for Test: Engineering Equipments - 3 - Question 11

This can be computed:as follows:
Depreciation in 1st year, using double declining balance method

Book value after 1st year
= 2000000 - 500000 = 1500000 
Depreciation in 2nd year

Book value after 2nd year
= 1500000 - 375000 = ₹ 1125000 
Depreciation in 3rd year

Test: Engineering Equipments - 3 - Question 12

Match List-I (Material) with List-II (Coefficient of traction for wheeled tractors) and select the correct answer using the codes given below the lists:

Codes:

Test: Engineering Equipments - 3 - Question 13

Sinking fund is

Test: Engineering Equipments - 3 - Question 14

Match List-l (Indications of terms) with List-ll (Terms) and select the correct answer using the codes given below the lists:

Codes:

Test: Engineering Equipments - 3 - Question 15

The basic action involved in sheep foot rolling is

Test: Engineering Equipments - 3 - Question 16

With the usual notations, sinking fund factor is given by

Test: Engineering Equipments - 3 - Question 17

Match List-I (Crane) with List-ll (Suitable for) and select the correct answer using the code given below the lists:

Code:

Test: Engineering Equipments - 3 - Question 18

For three-dimensional movement of a weight, which one of the following is most suitable?

Test: Engineering Equipments - 3 - Question 19

A scraper is to haul earth from a pit to a fill 0.4 km away, working under average - fixed - time conditions of 2.2 minutes, with an average haul speed of 7 kmph. With operating factor of 0.8, the number of cycles which can effectively be performed per hour is nearly 

Detailed Solution for Test: Engineering Equipments - 3 - Question 19

Operating factor = Time ratio for which equipment actually works in one hour 
∴ Actual operating time = operating factor x 60 = 48 minutes.
Cycle Lime = Hauling time + Returning time + Fixed time 

Number of cycles = 48/9.06 = 5.3

Test: Engineering Equipments - 3 - Question 20

Consider the following statements:
1. Book value is the unamortized cost of the asset as it still appears on the accounting books of the business.
2. Termination of economic life implies disposal of the equipment.
Which of the statements given above is/are correct?

Detailed Solution for Test: Engineering Equipments - 3 - Question 20

Economic life is defined as the age of replacement that maximizes the profit returns from the equipment or minimizes the cumulative hourly owing and operating cost. The termination of economic life does not mean disposal of the equipment.

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