Civil Engineering - GATE Exam Questions

1. 

In a reinforced concrete beam-column, the increase in the flexural strength along with the increase in the axial strength occurs

A. beyond the elastic limit of the material
B. when the yield of the tension reinforcement governs the strength
C. when the crushing of the concrete in the compression zone governs the strength
D. never

Answer: Option B

Explanation:

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2. 

The group efficiency of a pile group

A. will be always less than 100%.
B. will be always greater than 100%.
C. may be less than 100% or more than 100%.
D. will be more than 100% for pile groups in cohensionless soils and less than 100% for those in cohesive soils.

Answer: Option D

Explanation:

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3. 

A wastewater sample contains 10-5.6 mmol/l of OH ions at 25° C. The pH of this sample is

A. 8.6
B. 8.4
C. 5.6
D. 5.4

Answer: Option D

Explanation:

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4. 

At a rated capacity of 44 Cumecs, a centrifugal pump develops 36 m of head when operating at 1450 rpm. Its specific speed is :

A. 654
B. 509
C. 700
D. 90

Answer: Option A

Explanation:

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5. 

Presence of ifluoride in water greater than permissible level of 1.5 mg/l causes

A. cardiovascular disease
B. methemoglobinemia
C. hepatitis
D. dental fluorosis

Answer: Option D

Explanation:

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