The needle beam method of tunnelling (i) Is suitable for soils in which roof can stand for few minutes without support (ii) Is suitable for brick lining (iii) Is suitable for concrete lining (iv) Requires large number of trench jacks

The needle beam method of tunnelling
(i) Is suitable for soils in which roof can stand for few minutes without support
(ii) Is suitable for brick lining
(iii) Is suitable for concrete lining
(iv) Requires large number of trench jacks

A

Only (i) is correct

B

(i), (ii) and (iv) are correct

C

(i), (iii) and (iv) are correct

D

(i) and (ii) are correct

Which of the following Trenches is/are not located in the Pacific Ocean? (a) Tonga Trench (b) Mariana Trench (c) Java Trench (d) South Sandwich Trench (e) Kurile - Kamchatka Trench

A

Only (c)

B

(b) and (c)

C

(c) and (d)

D

(d) and (e)

Assertion A: English method of tunnelling requires more time as compared to other methods of tunnelling.
Reason R: In English method of tunnelling, the masons and excavators have to work alternately
Select your answer

A

Both A and R is true and R is the correct explanation of A

B

Both A and R is true and R is not the correct explanation of A

C

A is true but R is false

D

A is false but R is true

Consider the following statements and state what is not true of the Alluvial Soils? (a) Alluvial soils are the most widely spread soils. (b) Alluvial soils as a whole are very fertile. (c) On the basis of their age they are classified into two - old: Bangar and new: khadar. (d) Khadar soils are more fertile than Bangar (e) Alluvial soils contain an adequate proportion of potash, phosphoric acid and lime (f) Alluvial soils are ideal for sugarcane, paddy, wheat and pulses.

A

(c)

B

(d)

C

(e)

D

None

In a stadium there are four stands Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand in which seats are alloted to commuters. The number of vacant seats in Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand are 11, 8, 13 and 7 respectively. Anil is buying a ticket find the probability that he get a seat in Venkatesh Prasad stand.

A

1/3

B

2/3

C

5/6

D

8/19

E

None of these

The length of the needle beam used in needle beam method of tunnelling is usually

A

2 m to 4 m

B

2.5 m to 6 m

C

4 m to 7 m

D

5 m to 6 m

Consider the following statements with regards to the shear force diagram for the beam ABCD: 1. The beam ABCD is an overhanging beam having supports at A and D only. 2. The beam carries a point load of 20 kN at C. 3. The beam carries a concentrated load of 10 kN at the end B. 4. The beam is an overhanging beam having supports at C and D only. 5. The beam carries a uniformly distributed load of 70 kN over the left hand portion AC only. Which of the above statements are correct?

A

1, 2 and 3 only

B

1, 3 and 5 only

C

2, 3 and 4 only

D

2, 4 and 5 only

Ram is playing with a thread and a brick of mass 2 Kg. He tied a thread one of its end with brick and another end with the roof. He holds the thread at 1 m below the roof and applying a force of 50 N. What is the tension that appeared in the upper part of the thread which is stick with the roof? Take (Tan 68° = 2.5; Cos 68° = 0.37; g = 10m/s2)

A

53.38 N

B

38.89 N

C

48.76 N

D

24.46 N

Put in descending order of soils in terms of percentage area in India: I. Red soils II. Black soils III. Laterite soils IV. Alluvial soils

A

I, IV, II, III

B

IV, II, I, III

C

IV, I, II, III

D

I, III, IV, II

Put in descending order of area with the following soils in India: I. Red soils II. Black soils III. Laterite soils IV. Alluvial soils

A

I, IV, II, III

B

IV, II, I, III

C

IV, I, III, II

D

I, III, IV, II

The needle beam method of tunnelling (i) Is suitable for soils in which roof can stand for few minutes without support (ii) Is suitable for brick lining (iii) Is suitable for concrete lining (iv) Requires large number of trench jacks

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